/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0833_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_0833_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 03f3c06db3ef41593c24334f9583c5e77016ee88 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_0833_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 03f3c06db3ef41593c24334f9583c5e77016ee88 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:19:54,922 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:19:54,924 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:19:54,938 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:19:54,948 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:19:54,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:19:54,953 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:19:54,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:19:54,957 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:19:54,958 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:19:54,959 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:19:54,960 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:19:54,961 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:19:54,961 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:19:54,963 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:19:54,964 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:19:54,965 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:19:54,967 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:19:54,969 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:19:54,970 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:19:54,972 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:19:54,973 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:19:54,976 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:19:54,976 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:19:54,976 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:19:54,977 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:19:54,979 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:19:54,980 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:19:54,980 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:19:54,982 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:19:54,982 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:19:54,983 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:19:54,983 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:19:54,983 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:19:54,984 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:19:54,985 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:19:54,985 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:19:55,008 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:19:55,008 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:19:55,009 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:19:55,009 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:19:55,010 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:19:55,010 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:19:55,010 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:19:55,011 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:19:55,011 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:19:55,011 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:19:55,012 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:19:55,012 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:19:55,012 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:19:55,012 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:19:55,012 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:19:55,012 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:19:55,013 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:19:55,013 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:19:55,013 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:19:55,013 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:19:55,015 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:19:55,015 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:19:55,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:19:55,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:19:55,015 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:19:55,016 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:19:55,016 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:19:55,016 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:19:55,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:19:55,016 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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-09-20 15:19:55,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:19:55,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:19:55,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:19:55,089 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:19:55,089 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:19:55,090 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-09-20 15:19:55,491 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f971127b8/5c34778ec43d430ba59543b788806034/FLAG01d08437a [2018-09-20 15:19:55,696 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:19:55,696 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-09-20 15:19:55,705 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f971127b8/5c34778ec43d430ba59543b788806034/FLAG01d08437a [2018-09-20 15:19:55,721 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f971127b8/5c34778ec43d430ba59543b788806034 [2018-09-20 15:19:55,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:19:55,729 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:19:55,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:55,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:19:55,738 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:19:55,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:55,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b430070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55, skipping insertion in model container [2018-09-20 15:19:55,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:55,756 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:19:56,012 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:56,035 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:19:56,072 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:56,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56 WrapperNode [2018-09-20 15:19:56,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:56,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:19:56,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:19:56,128 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:19:56,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56" (1/1) ... [2018-09-20 15:19:56,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56" (1/1) ... [2018-09-20 15:19:56,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56" (1/1) ... [2018-09-20 15:19:56,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56" (1/1) ... [2018-09-20 15:19:56,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56" (1/1) ... [2018-09-20 15:19:56,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56" (1/1) ... [2018-09-20 15:19:56,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56" (1/1) ... [2018-09-20 15:19:56,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:19:56,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:19:56,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:19:56,199 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:19:56,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56" (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 15:19:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:19:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:19:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-09-20 15:19:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:19:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:19:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:19:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:19:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-09-20 15:19:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:19:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:19:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:19:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:19:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:19:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:19:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:19:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:19:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:19:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:19:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:19:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:19:57,204 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:19:57,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:57 BoogieIcfgContainer [2018-09-20 15:19:57,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:19:57,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:19:57,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:19:57,210 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:19:57,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:19:55" (1/3) ... [2018-09-20 15:19:57,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f07414f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:57, skipping insertion in model container [2018-09-20 15:19:57,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:56" (2/3) ... [2018-09-20 15:19:57,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f07414f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:57, skipping insertion in model container [2018-09-20 15:19:57,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:57" (3/3) ... [2018-09-20 15:19:57,215 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-09-20 15:19:57,226 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:19:57,237 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:19:57,295 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:19:57,296 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:19:57,296 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:19:57,296 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:19:57,296 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:19:57,296 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:19:57,297 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:19:57,297 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:19:57,297 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:19:57,322 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-09-20 15:19:57,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-20 15:19:57,330 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:57,332 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 15:19:57,334 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:57,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1559382453, now seen corresponding path program 1 times [2018-09-20 15:19:57,343 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:57,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:57,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:57,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:57,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:57,521 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 15:19:57,524 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:57,525 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:19:57,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:19:57,543 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:19:57,544 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:57,546 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 2 states. [2018-09-20 15:19:57,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:57,580 INFO L93 Difference]: Finished difference Result 196 states and 245 transitions. [2018-09-20 15:19:57,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:19:57,582 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-20 15:19:57,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:57,594 INFO L225 Difference]: With dead ends: 196 [2018-09-20 15:19:57,594 INFO L226 Difference]: Without dead ends: 98 [2018-09-20 15:19:57,599 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 15:19:57,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-09-20 15:19:57,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-09-20 15:19:57,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-20 15:19:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2018-09-20 15:19:57,653 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 17 [2018-09-20 15:19:57,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:57,654 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2018-09-20 15:19:57,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:19:57,654 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2018-09-20 15:19:57,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-20 15:19:57,655 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:57,655 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 15:19:57,656 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:57,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1818019967, now seen corresponding path program 1 times [2018-09-20 15:19:57,656 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:57,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:57,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:57,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:57,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:57,789 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:19:57,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:19:57 BoogieIcfgContainer [2018-09-20 15:19:57,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:19:57,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:19:57,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:19:57,837 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:19:57,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:57" (3/4) ... [2018-09-20 15:19:57,843 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:19:57,844 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:19:57,845 INFO L168 Benchmark]: Toolchain (without parser) took 2118.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -120.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,847 INFO L168 Benchmark]: CDTParser took 0.21 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 15:19:57,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.43 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,849 INFO L168 Benchmark]: Boogie Preprocessor took 71.06 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,850 INFO L168 Benchmark]: RCFGBuilder took 1006.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,852 INFO L168 Benchmark]: TraceAbstraction took 629.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,853 INFO L168 Benchmark]: Witness Printer took 6.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:19:57,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 394.43 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.06 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1006.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 629.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 131]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 130, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 47. Possible FailurePath: [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(huge_exp)=6442450948, \old(invln2_exp)=6442450950, \old(one_exp)=6442450962, \old(P1_exp)=6442450952, \old(P2_exp)=6442450954, \old(P3_exp)=6442450957, \old(P4_exp)=6442450960, \old(P5_exp)=6442450959, \old(twom100_exp)=6442450946, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L126] float x = -1.0f / 0.0f; VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L127] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L34] float y, hi, lo, c, t; [L35] __int32_t k = 0, xsb, sx; [L35] __int32_t k = 0, xsb, sx; [L36] __uint32_t hx; VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L39] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, gf_u={6442450958:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L40] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, gf_u={6442450958:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L41] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, gf_u={6442450958:0}, gf_u.word=6442450944, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L41] (sx) = gf_u.word VAL [\old(x)=6442450951, gf_u={6442450958:0}, gf_u.word=6442450944, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L41] FCALL (sx) = gf_u.word VAL [(sx) = gf_u.word=6442450961, \old(x)=6442450951, gf_u={6442450958:0}, gf_u.word=6442450944, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L42] COND FALSE !(0) VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L43] xsb = (sx >> 31) & 1 [L44] hx = sx & 0x7fffffff VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L46] COND TRUE ((hx) > 0x7f800000L) [L47] RET return x + x; VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L127] EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=6442450945, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L127] float res = __ieee754_expf(x); [L130] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450945, res == 0.0f && __signbit_float(res) == 0=0, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L130] COND FALSE, EXPR !(res == 0.0f && __signbit_float(res) == 0) VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450945, res == 0.0f && __signbit_float(res) == 0=0, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L130] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L131] __VERIFIER_error() VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450945, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 102 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 113 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=102occurred 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 15:20:00,301 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:20:00,305 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:20:00,326 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:20:00,327 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:20:00,328 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:20:00,329 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:20:00,331 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:20:00,332 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:20:00,333 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:20:00,334 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:20:00,335 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:20:00,336 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:20:00,336 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:20:00,338 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:20:00,338 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:20:00,339 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:20:00,341 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:20:00,343 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:20:00,345 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:20:00,346 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:20:00,347 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:20:00,350 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:20:00,350 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:20:00,353 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:20:00,356 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:20:00,361 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:20:00,362 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:20:00,363 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:20:00,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:20:00,367 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:20:00,367 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:20:00,368 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:20:00,368 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:20:00,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:20:00,372 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:20:00,372 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:20:00,388 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:20:00,388 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:20:00,389 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:20:00,389 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:20:00,390 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:20:00,390 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:20:00,390 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:20:00,390 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:20:00,390 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:20:00,391 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:20:00,391 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:20:00,391 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:20:00,391 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:20:00,391 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:20:00,391 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:20:00,392 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:20:00,392 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:20:00,392 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:20:00,392 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:20:00,392 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:20:00,392 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:20:00,393 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:20:00,393 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:20:00,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:20:00,393 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:20:00,393 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:20:00,393 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:20:00,393 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:20:00,394 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:20:00,394 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:20:00,394 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:20:00,394 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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-09-20 15:20:00,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:20:00,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:20:00,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:20:00,474 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:20:00,475 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:20:00,477 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-09-20 15:20:00,831 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79d6c683/d3cc720a6c5b47e4997164731206d404/FLAG929359e30 [2018-09-20 15:20:01,068 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:20:01,071 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-09-20 15:20:01,084 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79d6c683/d3cc720a6c5b47e4997164731206d404/FLAG929359e30 [2018-09-20 15:20:01,115 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79d6c683/d3cc720a6c5b47e4997164731206d404 [2018-09-20 15:20:01,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:20:01,124 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:20:01,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:20:01,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:20:01,134 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:20:01,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b231783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01, skipping insertion in model container [2018-09-20 15:20:01,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,154 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:20:01,497 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:20:01,529 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:20:01,571 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:20:01,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01 WrapperNode [2018-09-20 15:20:01,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:20:01,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:20:01,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:20:01,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:20:01,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:20:01,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:20:01,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:20:01,693 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:20:01,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (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 15:20:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:20:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:20:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-09-20 15:20:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:20:01,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:20:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:20:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:20:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-09-20 15:20:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:20:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:20:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:20:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:20:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:20:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:20:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:20:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:20:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:20:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:20:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:20:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:20:02,132 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:02,198 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:11,529 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:11,537 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:11,615 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:11,630 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:13,847 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:13,885 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:13,888 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:20:13,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:20:13 BoogieIcfgContainer [2018-09-20 15:20:13,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:20:13,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:20:13,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:20:13,895 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:20:13,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:20:01" (1/3) ... [2018-09-20 15:20:13,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3167a515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:20:13, skipping insertion in model container [2018-09-20 15:20:13,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (2/3) ... [2018-09-20 15:20:13,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3167a515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:20:13, skipping insertion in model container [2018-09-20 15:20:13,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:20:13" (3/3) ... [2018-09-20 15:20:13,898 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-09-20 15:20:13,907 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:20:13,916 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:20:13,966 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:20:13,967 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:20:13,967 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:20:13,967 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:20:13,968 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:20:13,968 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:20:13,968 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:20:13,968 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:20:13,968 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:20:13,990 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-09-20 15:20:13,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-20 15:20:13,998 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:13,999 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 15:20:14,002 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:14,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1559382453, now seen corresponding path program 1 times [2018-09-20 15:20:14,013 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:14,014 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 15:20:14,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:14,129 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:14,148 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:14,162 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:14,162 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:20:14,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:20:14,179 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:20:14,179 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:20:14,182 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 2 states. [2018-09-20 15:20:14,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:14,216 INFO L93 Difference]: Finished difference Result 196 states and 245 transitions. [2018-09-20 15:20:14,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:20:14,217 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-20 15:20:14,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:14,230 INFO L225 Difference]: With dead ends: 196 [2018-09-20 15:20:14,230 INFO L226 Difference]: Without dead ends: 98 [2018-09-20 15:20:14,235 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 15:20:14,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-09-20 15:20:14,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-09-20 15:20:14,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-20 15:20:14,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2018-09-20 15:20:14,287 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 17 [2018-09-20 15:20:14,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:14,288 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2018-09-20 15:20:14,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:20:14,288 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2018-09-20 15:20:14,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-20 15:20:14,289 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:14,290 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 15:20:14,290 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:14,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1818019967, now seen corresponding path program 1 times [2018-09-20 15:20:14,291 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:14,291 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 15:20:14,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:14,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:14,518 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:20:14,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:20:14,538 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:14,563 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:14,643 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:14,644 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:14,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:20:14,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:20:14,777 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:14,801 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:14,824 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:14,825 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:15,121 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:15,134 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:15,134 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:15,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:15,136 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:15,137 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:15,137 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand 9 states. [2018-09-20 15:20:15,496 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:20:16,096 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 15:20:27,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:27,472 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2018-09-20 15:20:27,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:20:27,477 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-09-20 15:20:27,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:27,481 INFO L225 Difference]: With dead ends: 126 [2018-09-20 15:20:27,481 INFO L226 Difference]: Without dead ends: 103 [2018-09-20 15:20:27,483 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 15:20:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-09-20 15:20:27,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2018-09-20 15:20:27,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-20 15:20:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2018-09-20 15:20:27,498 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 26 [2018-09-20 15:20:27,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:27,499 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2018-09-20 15:20:27,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:27,499 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2018-09-20 15:20:27,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-20 15:20:27,500 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:27,501 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 15:20:27,501 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:27,501 INFO L82 PathProgramCache]: Analyzing trace with hash -409072541, now seen corresponding path program 1 times [2018-09-20 15:20:27,502 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:27,502 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:20:27,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:27,632 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:27,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:20:27,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:20:27,682 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:27,705 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:27,749 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:27,750 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:27,774 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:20:27,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:20:27,781 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:27,784 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:27,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:27,788 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:27,911 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:27,930 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:27,930 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:27,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:27,931 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:27,931 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:27,932 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand 9 states. [2018-09-20 15:20:38,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:38,273 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2018-09-20 15:20:38,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:20:38,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-20 15:20:38,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:38,276 INFO L225 Difference]: With dead ends: 126 [2018-09-20 15:20:38,276 INFO L226 Difference]: Without dead ends: 103 [2018-09-20 15:20:38,277 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 15:20:38,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-09-20 15:20:38,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2018-09-20 15:20:38,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-20 15:20:38,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2018-09-20 15:20:38,289 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 28 [2018-09-20 15:20:38,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:38,290 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2018-09-20 15:20:38,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:38,290 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2018-09-20 15:20:38,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-20 15:20:38,291 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:38,291 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:20:38,292 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:38,292 INFO L82 PathProgramCache]: Analyzing trace with hash 91437043, now seen corresponding path program 1 times [2018-09-20 15:20:38,293 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:38,293 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 15:20:38,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:38,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:38,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:20:38,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:20:38,445 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:38,450 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:38,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:38,462 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:38,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:20:38,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:20:38,490 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:38,494 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:38,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:38,498 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:38,636 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:38,648 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:38,648 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:38,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:38,649 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:38,649 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:38,649 INFO L87 Difference]: Start difference. First operand 98 states and 105 transitions. Second operand 9 states. [2018-09-20 15:20:49,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:49,036 INFO L93 Difference]: Finished difference Result 127 states and 134 transitions. [2018-09-20 15:20:49,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:20:49,037 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-09-20 15:20:49,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:49,039 INFO L225 Difference]: With dead ends: 127 [2018-09-20 15:20:49,039 INFO L226 Difference]: Without dead ends: 103 [2018-09-20 15:20:49,040 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:20:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-09-20 15:20:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2018-09-20 15:20:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-20 15:20:49,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2018-09-20 15:20:49,049 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 29 [2018-09-20 15:20:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:49,049 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2018-09-20 15:20:49,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2018-09-20 15:20:49,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-20 15:20:49,051 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:49,051 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:20:49,051 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:49,051 INFO L82 PathProgramCache]: Analyzing trace with hash -717909583, now seen corresponding path program 1 times [2018-09-20 15:20:49,052 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:49,052 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 15:20:49,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:49,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:49,203 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:49,214 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:49,214 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-20 15:20:49,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-20 15:20:49,215 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-20 15:20:49,215 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-20 15:20:49,215 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand 6 states. [2018-09-20 15:20:51,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:51,714 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2018-09-20 15:20:51,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-20 15:20:51,715 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-09-20 15:20:51,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:51,717 INFO L225 Difference]: With dead ends: 105 [2018-09-20 15:20:51,717 INFO L226 Difference]: Without dead ends: 102 [2018-09-20 15:20:51,718 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-20 15:20:51,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-09-20 15:20:51,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-09-20 15:20:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-09-20 15:20:51,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 108 transitions. [2018-09-20 15:20:51,727 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 108 transitions. Word has length 29 [2018-09-20 15:20:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:51,728 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 108 transitions. [2018-09-20 15:20:51,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-20 15:20:51,728 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 108 transitions. [2018-09-20 15:20:51,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-20 15:20:51,731 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:51,731 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] [2018-09-20 15:20:51,731 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:51,732 INFO L82 PathProgramCache]: Analyzing trace with hash -984260473, now seen corresponding path program 1 times [2018-09-20 15:20:51,732 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:51,732 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 15:20:51,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:52,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:52,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:20:52,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:20:52,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:52,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:52,716 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:52,717 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:52,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:20:52,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:20:52,743 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:52,746 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:52,750 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:52,750 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:52,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:52,883 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:52,904 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:52,904 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:52,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:52,905 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:52,905 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:52,905 INFO L87 Difference]: Start difference. First operand 102 states and 108 transitions. Second operand 9 states. [2018-09-20 15:21:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:21:07,550 INFO L93 Difference]: Finished difference Result 172 states and 180 transitions. [2018-09-20 15:21:07,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:21:07,551 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2018-09-20 15:21:07,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:21:07,553 INFO L225 Difference]: With dead ends: 172 [2018-09-20 15:21:07,553 INFO L226 Difference]: Without dead ends: 100 [2018-09-20 15:21:07,554 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 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 15:21:07,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-09-20 15:21:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-09-20 15:21:07,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-09-20 15:21:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2018-09-20 15:21:07,565 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 33 [2018-09-20 15:21:07,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:21:07,566 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2018-09-20 15:21:07,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:21:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2018-09-20 15:21:07,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 15:21:07,567 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:21:07,567 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] [2018-09-20 15:21:07,568 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:21:07,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1737805780, now seen corresponding path program 1 times [2018-09-20 15:21:07,568 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:21:07,570 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-20 15:21:07,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:21:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:21:08,686 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:21:08,736 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 15:21:08,740 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 15:21:08,740 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,746 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,757 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 15:21:08,757 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:21:08,792 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 15:21:08,808 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 15:21:08,809 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,827 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,833 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 15:21:08,833 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:21:08,973 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 15:21:08,973 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:21:09,007 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:21:09,008 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:21:09,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:21:09,008 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:21:09,009 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:21:09,009 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand 9 states. [2018-09-20 15:21:18,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:21:18,935 INFO L93 Difference]: Finished difference Result 119 states and 121 transitions. [2018-09-20 15:21:18,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:21:18,936 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-09-20 15:21:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:21:18,937 INFO L225 Difference]: With dead ends: 119 [2018-09-20 15:21:18,937 INFO L226 Difference]: Without dead ends: 46 [2018-09-20 15:21:18,940 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:21:18,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-09-20 15:21:18,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-09-20 15:21:18,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-09-20 15:21:18,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2018-09-20 15:21:18,945 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 34 [2018-09-20 15:21:18,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:21:18,945 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2018-09-20 15:21:18,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:21:18,945 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2018-09-20 15:21:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-20 15:21:18,948 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:21:18,948 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, 1, 1] [2018-09-20 15:21:18,948 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:21:18,948 INFO L82 PathProgramCache]: Analyzing trace with hash -869162095, now seen corresponding path program 1 times [2018-09-20 15:21:18,948 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:21:18,949 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-20 15:21:18,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:21:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:21:19,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:21:19,185 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 15:21:19,200 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 15:21:19,200 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:21:19,219 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:19,270 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 15:21:19,270 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:21:19,327 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 15:21:19,335 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 15:21:19,336 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:21:19,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:19,343 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 15:21:19,343 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:21:19,570 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 15:21:19,570 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:21:19,584 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:21:19,584 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-20 15:21:19,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-20 15:21:19,585 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-20 15:21:19,585 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:21:19,585 INFO L87 Difference]: Start difference. First operand 46 states and 45 transitions. Second operand 13 states. [2018-09-20 15:21:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:21:20,859 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2018-09-20 15:21:20,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:21:20,860 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2018-09-20 15:21:20,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:21:20,860 INFO L225 Difference]: With dead ends: 46 [2018-09-20 15:21:20,861 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:21:20,862 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:21:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:21:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:21:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:21:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:21:20,864 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2018-09-20 15:21:20,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:21:20,864 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:21:20,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-20 15:21:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:21:20,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:21:20,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:21:21,079 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-20 15:21:21,245 INFO L426 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-09-20 15:21:21,245 INFO L426 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-09-20 15:21:21,245 INFO L426 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-09-20 15:21:21,245 INFO L426 ceAbstractionStarter]: For program point L102-2(line 102) no Hoare annotation was computed. [2018-09-20 15:21:21,245 INFO L426 ceAbstractionStarter]: For program point L94-1(lines 94 98) no Hoare annotation was computed. [2018-09-20 15:21:21,246 INFO L422 ceAbstractionStarter]: At program point L94-3(lines 94 98) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-09-20 15:21:21,246 INFO L426 ceAbstractionStarter]: For program point L86(lines 86 90) no Hoare annotation was computed. [2018-09-20 15:21:21,246 INFO L426 ceAbstractionStarter]: For program point L86-2(lines 79 92) no Hoare annotation was computed. [2018-09-20 15:21:21,246 INFO L426 ceAbstractionStarter]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2018-09-20 15:21:21,246 INFO L426 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-09-20 15:21:21,246 INFO L426 ceAbstractionStarter]: For program point L95-1(line 95) no Hoare annotation was computed. [2018-09-20 15:21:21,246 INFO L426 ceAbstractionStarter]: For program point L95-2(line 95) no Hoare annotation was computed. [2018-09-20 15:21:21,246 INFO L426 ceAbstractionStarter]: For program point L95-3(line 95) no Hoare annotation was computed. [2018-09-20 15:21:21,248 INFO L426 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2018-09-20 15:21:21,248 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-20 15:21:21,248 INFO L426 ceAbstractionStarter]: For program point L87-2(line 87) no Hoare annotation was computed. [2018-09-20 15:21:21,249 INFO L426 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 33 106) no Hoare annotation was computed. [2018-09-20 15:21:21,249 INFO L426 ceAbstractionStarter]: For program point L87-3(line 87) no Hoare annotation was computed. [2018-09-20 15:21:21,249 INFO L426 ceAbstractionStarter]: For program point L79(lines 79 105) no Hoare annotation was computed. [2018-09-20 15:21:21,249 INFO L426 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-09-20 15:21:21,249 INFO L426 ceAbstractionStarter]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2018-09-20 15:21:21,249 INFO L422 ceAbstractionStarter]: At program point L38-3(lines 38 42) the Hoare annotation is: (= |__ieee754_expf_#in~x| __ieee754_expf_~x) [2018-09-20 15:21:21,249 INFO L426 ceAbstractionStarter]: For program point L38-4(lines 38 42) no Hoare annotation was computed. [2018-09-20 15:21:21,251 INFO L426 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-09-20 15:21:21,251 INFO L429 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 33 106) the Hoare annotation is: true [2018-09-20 15:21:21,251 INFO L426 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-09-20 15:21:21,251 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 70) no Hoare annotation was computed. [2018-09-20 15:21:21,251 INFO L426 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 33 106) no Hoare annotation was computed. [2018-09-20 15:21:21,251 INFO L426 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2018-09-20 15:21:21,252 INFO L426 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2018-09-20 15:21:21,252 INFO L426 ceAbstractionStarter]: For program point L39-2(line 39) no Hoare annotation was computed. [2018-09-20 15:21:21,252 INFO L426 ceAbstractionStarter]: For program point L39-3(line 39) no Hoare annotation was computed. [2018-09-20 15:21:21,252 INFO L426 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L426 ceAbstractionStarter]: For program point L97-1(line 97) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L426 ceAbstractionStarter]: For program point L97-2(line 97) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L426 ceAbstractionStarter]: For program point L89(line 89) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L426 ceAbstractionStarter]: For program point L56(lines 56 65) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L426 ceAbstractionStarter]: For program point L89-1(line 89) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L426 ceAbstractionStarter]: For program point L89-2(line 89) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L426 ceAbstractionStarter]: For program point L56-2(lines 56 65) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L426 ceAbstractionStarter]: For program point L48(lines 48 49) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L426 ceAbstractionStarter]: For program point L81-1(lines 81 85) no Hoare annotation was computed. [2018-09-20 15:21:21,253 INFO L422 ceAbstractionStarter]: At program point L81-3(lines 81 85) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-09-20 15:21:21,254 INFO L426 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-09-20 15:21:21,254 INFO L426 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-09-20 15:21:21,254 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-20 15:21:21,254 INFO L426 ceAbstractionStarter]: For program point L82-1(line 82) no Hoare annotation was computed. [2018-09-20 15:21:21,254 INFO L426 ceAbstractionStarter]: For program point L82-2(line 82) no Hoare annotation was computed. [2018-09-20 15:21:21,254 INFO L426 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-09-20 15:21:21,254 INFO L426 ceAbstractionStarter]: For program point L82-3(line 82) no Hoare annotation was computed. [2018-09-20 15:21:21,254 INFO L426 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2018-09-20 15:21:21,257 INFO L426 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-09-20 15:21:21,258 INFO L426 ceAbstractionStarter]: For program point L41-2(line 41) no Hoare annotation was computed. [2018-09-20 15:21:21,258 INFO L426 ceAbstractionStarter]: For program point L99(lines 99 103) no Hoare annotation was computed. [2018-09-20 15:21:21,258 INFO L426 ceAbstractionStarter]: For program point L99-2(lines 92 105) no Hoare annotation was computed. [2018-09-20 15:21:21,258 INFO L426 ceAbstractionStarter]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2018-09-20 15:21:21,258 INFO L426 ceAbstractionStarter]: For program point L83(line 83) no Hoare annotation was computed. [2018-09-20 15:21:21,258 INFO L426 ceAbstractionStarter]: For program point L50(lines 50 51) no Hoare annotation was computed. [2018-09-20 15:21:21,258 INFO L426 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-09-20 15:21:21,258 INFO L426 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-09-20 15:21:21,258 INFO L426 ceAbstractionStarter]: For program point L67(lines 67 70) no Hoare annotation was computed. [2018-09-20 15:21:21,259 INFO L426 ceAbstractionStarter]: For program point L100-1(line 100) no Hoare annotation was computed. [2018-09-20 15:21:21,259 INFO L426 ceAbstractionStarter]: For program point L100-2(line 100) no Hoare annotation was computed. [2018-09-20 15:21:21,259 INFO L426 ceAbstractionStarter]: For program point L67-2(lines 55 70) no Hoare annotation was computed. [2018-09-20 15:21:21,259 INFO L426 ceAbstractionStarter]: For program point L100-3(line 100) no Hoare annotation was computed. [2018-09-20 15:21:21,259 INFO L426 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2018-09-20 15:21:21,259 INFO L426 ceAbstractionStarter]: For program point L84-1(line 84) no Hoare annotation was computed. [2018-09-20 15:21:21,259 INFO L426 ceAbstractionStarter]: For program point L84-2(line 84) no Hoare annotation was computed. [2018-09-20 15:21:21,259 INFO L426 ceAbstractionStarter]: For program point L101(line 101) no Hoare annotation was computed. [2018-09-20 15:21:21,259 INFO L426 ceAbstractionStarter]: For program point L68(lines 68 69) no Hoare annotation was computed. [2018-09-20 15:21:21,262 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:21:21,263 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:21:21,263 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:21:21,263 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:21:21,263 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:21:21,263 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:21:21,263 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:21:21,263 INFO L422 ceAbstractionStarter]: At program point L130-1(line 130) the Hoare annotation is: (and |main_#t~short15| (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) main_~res~0) (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0)) [2018-09-20 15:21:21,263 INFO L426 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2018-09-20 15:21:21,263 INFO L422 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:21:21,264 INFO L426 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-09-20 15:21:21,264 INFO L426 ceAbstractionStarter]: For program point L130-4(lines 130 133) no Hoare annotation was computed. [2018-09-20 15:21:21,264 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 120 136) the Hoare annotation is: true [2018-09-20 15:21:21,264 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 120 136) no Hoare annotation was computed. [2018-09-20 15:21:21,264 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2018-09-20 15:21:21,264 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 120 136) no Hoare annotation was computed. [2018-09-20 15:21:21,264 INFO L426 ceAbstractionStarter]: For program point L131(line 131) no Hoare annotation was computed. [2018-09-20 15:21:21,267 INFO L426 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-09-20 15:21:21,267 INFO L426 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 108 118) no Hoare annotation was computed. [2018-09-20 15:21:21,267 INFO L426 ceAbstractionStarter]: For program point L114(line 114) no Hoare annotation was computed. [2018-09-20 15:21:21,267 INFO L426 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2018-09-20 15:21:21,267 INFO L426 ceAbstractionStarter]: For program point L114-1(line 114) no Hoare annotation was computed. [2018-09-20 15:21:21,268 INFO L429 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 108 118) the Hoare annotation is: true [2018-09-20 15:21:21,268 INFO L426 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-09-20 15:21:21,268 INFO L426 ceAbstractionStarter]: For program point L114-2(line 114) no Hoare annotation was computed. [2018-09-20 15:21:21,268 INFO L426 ceAbstractionStarter]: For program point L112-1(line 112) no Hoare annotation was computed. [2018-09-20 15:21:21,268 INFO L426 ceAbstractionStarter]: For program point L112-2(line 112) no Hoare annotation was computed. [2018-09-20 15:21:21,268 INFO L426 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-09-20 15:21:21,268 INFO L426 ceAbstractionStarter]: For program point L112-3(line 112) no Hoare annotation was computed. [2018-09-20 15:21:21,268 INFO L422 ceAbstractionStarter]: At program point L111-3(lines 111 115) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-09-20 15:21:21,268 INFO L426 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 108 118) no Hoare annotation was computed. [2018-09-20 15:21:21,269 INFO L426 ceAbstractionStarter]: For program point L111-4(lines 111 115) no Hoare annotation was computed. [2018-09-20 15:21:21,276 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,277 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,278 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,278 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,285 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,285 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,285 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,286 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,288 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,288 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,288 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,288 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,289 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,289 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,289 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,289 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:21:21 BoogieIcfgContainer [2018-09-20 15:21:21,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:21:21,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:21:21,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:21:21,295 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:21:21,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:20:13" (3/4) ... [2018-09-20 15:21:21,301 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:21:21,308 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-09-20 15:21:21,309 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:21:21,309 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:21:21,309 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-20 15:21:21,317 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2018-09-20 15:21:21,318 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-09-20 15:21:21,318 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 15:21:21,351 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:21:21,352 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:21:21,353 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-09-20 15:21:21,353 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-09-20 15:21:21,426 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:21:21,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:21:21,431 INFO L168 Benchmark]: Toolchain (without parser) took 80310.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 951.8 MB in the beginning and 1.0 GB in the end (delta: -63.5 MB). Peak memory consumption was 123.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:21:21,433 INFO L168 Benchmark]: CDTParser took 1.97 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 15:21:21,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:21:21,434 INFO L168 Benchmark]: Boogie Preprocessor took 79.31 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:21:21,434 INFO L168 Benchmark]: RCFGBuilder took 12197.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:21:21,434 INFO L168 Benchmark]: TraceAbstraction took 67402.92 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.5 MB). Peak memory consumption was 116.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:21:21,435 INFO L168 Benchmark]: Witness Printer took 135.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:21:21,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.97 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 487.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.31 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 12197.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 67402.92 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.5 MB). Peak memory consumption was 116.1 MB. Max. memory is 11.5 GB. * Witness Printer took 135.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 131]: 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: 81]: Loop Invariant [2018-09-20 15:21:21,448 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,448 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,448 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,454 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,454 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,454 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,455 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,455 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 94]: Loop Invariant [2018-09-20 15:21:21,455 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,455 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,456 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,456 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,456 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,460 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,460 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:21:21,460 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 102 locations, 1 error locations. SAFE Result, 67.3s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 61.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 680 SDtfs, 451 SDslu, 3393 SDs, 0 SdLazy, 688 SolverSat, 18 SolverUnsat, 21 SolverUnknown, 0 SolverNotchecked, 55.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 280 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred 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, 8 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 24 PreInvPairs, 29 NumberOfFragments, 75 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 233 ConstructedInterpolants, 37 QuantifiedInterpolants, 47270 SizeOfPredicates, 49 NumberOfNonLiveVariables, 797 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...