./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_0730c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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 /storage/repos/svcomp/c/float-newlib/double_req_bl_0730c_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 fb0b06f0fabe52e4995034e0b478ee6377b6d993 ................................................................................................................................................................................................................................................................................. 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 /storage/repos/svcomp/c/float-newlib/double_req_bl_0730c_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 fb0b06f0fabe52e4995034e0b478ee6377b6d993 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:54:23,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:54:23,076 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:54:23,089 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:54:23,089 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:54:23,090 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:54:23,092 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:54:23,094 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:54:23,096 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:54:23,097 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:54:23,098 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:54:23,098 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:54:23,099 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:54:23,101 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:54:23,102 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:54:23,103 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:54:23,104 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:54:23,106 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:54:23,108 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:54:23,110 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:54:23,111 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:54:23,112 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:54:23,115 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:54:23,115 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:54:23,115 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:54:23,117 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:54:23,118 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:54:23,119 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:54:23,120 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:54:23,121 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:54:23,121 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:54:23,123 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:54:23,123 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:54:23,123 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:54:23,125 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:54:23,125 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:54:23,126 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 03:54:23,141 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:54:23,141 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:54:23,143 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:54:23,143 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:54:23,143 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:54:23,144 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:54:23,144 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:54:23,145 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 03:54:23,145 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:54:23,145 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:54:23,145 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:54:23,145 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:54:23,145 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:54:23,146 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:54:23,146 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:54:23,146 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:54:23,146 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:54:23,146 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:54:23,147 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:54:23,148 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:54:23,149 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:54:23,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:54:23,149 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:54:23,149 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:54:23,149 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:54:23,149 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 03:54:23,150 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:54:23,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 03:54:23,151 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 -> fb0b06f0fabe52e4995034e0b478ee6377b6d993 [2018-12-31 03:54:23,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:54:23,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:54:23,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:54:23,208 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:54:23,209 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:54:23,210 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_0730c_true-unreach-call.c [2018-12-31 03:54:23,278 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc9e00e2f/b810d829107e4757a6e45d9929309316/FLAG65c02194e [2018-12-31 03:54:23,796 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:54:23,796 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_0730c_true-unreach-call.c [2018-12-31 03:54:23,805 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc9e00e2f/b810d829107e4757a6e45d9929309316/FLAG65c02194e [2018-12-31 03:54:24,156 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc9e00e2f/b810d829107e4757a6e45d9929309316 [2018-12-31 03:54:24,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:54:24,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:54:24,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:54:24,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:54:24,169 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:54:24,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64904782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24, skipping insertion in model container [2018-12-31 03:54:24,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:54:24,218 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:54:24,464 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:54:24,469 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:54:24,552 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:54:24,581 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:54:24,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24 WrapperNode [2018-12-31 03:54:24,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:54:24,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:54:24,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:54:24,583 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:54:24,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:54:24,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:54:24,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:54:24,716 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:54:24,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (1/1) ... [2018-12-31 03:54:24,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:54:24,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:54:24,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:54:24,772 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:54:24,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (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 [2018-12-31 03:54:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 03:54:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-31 03:54:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 03:54:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-31 03:54:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:54:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:54:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 03:54:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 03:54:25,626 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:54:25,626 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-12-31 03:54:25,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:54:25 BoogieIcfgContainer [2018-12-31 03:54:25,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:54:25,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:54:25,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:54:25,632 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:54:25,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:54:24" (1/3) ... [2018-12-31 03:54:25,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c84a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:54:25, skipping insertion in model container [2018-12-31 03:54:25,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:24" (2/3) ... [2018-12-31 03:54:25,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c84a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:54:25, skipping insertion in model container [2018-12-31 03:54:25,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:54:25" (3/3) ... [2018-12-31 03:54:25,638 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730c_true-unreach-call.c [2018-12-31 03:54:25,649 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:54:25,660 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:54:25,679 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:54:25,714 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:54:25,715 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:54:25,715 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:54:25,715 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:54:25,716 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:54:25,716 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:54:25,716 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:54:25,716 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:54:25,716 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:54:25,733 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-12-31 03:54:25,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-31 03:54:25,740 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:25,741 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:25,744 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:25,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:25,749 INFO L82 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2018-12-31 03:54:25,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:54:25,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:54:25,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:54:25,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:54:25,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:54:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:54:25,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:54:25,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:54:25,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 03:54:25,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 03:54:25,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 03:54:25,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 03:54:25,908 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2018-12-31 03:54:25,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:25,932 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2018-12-31 03:54:25,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 03:54:25,934 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-12-31 03:54:25,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:25,948 INFO L225 Difference]: With dead ends: 104 [2018-12-31 03:54:25,948 INFO L226 Difference]: Without dead ends: 50 [2018-12-31 03:54:25,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 03:54:25,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-31 03:54:25,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-31 03:54:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-31 03:54:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2018-12-31 03:54:25,999 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2018-12-31 03:54:25,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:26,000 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2018-12-31 03:54:26,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 03:54:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2018-12-31 03:54:26,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 03:54:26,001 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:26,001 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:26,001 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:26,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:26,001 INFO L82 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2018-12-31 03:54:26,002 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:54:26,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:54:26,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:54:26,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:54:26,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:54:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:54:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:54:26,077 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 03:54:26,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:54:26 BoogieIcfgContainer [2018-12-31 03:54:26,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:54:26,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:54:26,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:54:26,113 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:54:26,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:54:25" (3/4) ... [2018-12-31 03:54:26,118 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 03:54:26,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:54:26,119 INFO L168 Benchmark]: Toolchain (without parser) took 1958.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -118.8 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:26,122 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:54:26,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.45 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 931.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:26,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -192.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:26,125 INFO L168 Benchmark]: Boogie Preprocessor took 54.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:26,126 INFO L168 Benchmark]: RCFGBuilder took 856.00 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:26,127 INFO L168 Benchmark]: TraceAbstraction took 484.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:26,128 INFO L168 Benchmark]: Witness Printer took 5.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:54:26,135 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 418.45 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 931.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 133.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -192.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 856.00 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 484.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.56 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: 154]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 153, overapproximation of someBinaryArithmeticDOUBLEoperation at line 33, overapproximation of bitwiseAnd at line 32. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L149] double x = 0.0; [L20] double z; [L21] __int32_t sign = 0x80000000; [L22] __uint32_t r, t1, s1, ix1, q1; [L23] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] ieee_double_shape_type ew_u; [L27] ew_u.value = (x) [L28] EXPR ew_u.parts.msw [L28] (ix0) = ew_u.parts.msw [L29] EXPR ew_u.parts.lsw [L29] (ix1) = ew_u.parts.lsw [L32] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L33] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L150] double res = __ieee754_sqrt(x); [L153] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L153] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L154] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 73 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=53occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 0.1.24-2e94e6a [2018-12-31 03:54:28,564 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:54:28,566 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:54:28,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:54:28,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:54:28,582 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:54:28,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:54:28,586 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:54:28,588 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:54:28,589 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:54:28,590 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:54:28,591 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:54:28,592 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:54:28,594 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:54:28,595 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:54:28,596 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:54:28,597 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:54:28,600 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:54:28,602 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:54:28,604 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:54:28,605 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:54:28,607 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:54:28,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:54:28,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:54:28,611 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:54:28,612 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:54:28,613 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:54:28,614 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:54:28,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:54:28,617 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:54:28,617 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:54:28,618 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:54:28,619 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:54:28,619 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:54:28,620 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:54:28,621 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:54:28,622 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 03:54:28,651 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:54:28,652 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:54:28,654 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:54:28,654 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:54:28,655 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:54:28,655 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:54:28,655 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:54:28,655 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:54:28,655 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:54:28,656 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:54:28,657 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:54:28,657 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:54:28,657 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 03:54:28,657 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 03:54:28,657 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:54:28,658 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:54:28,658 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:54:28,658 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:54:28,658 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:54:28,658 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:54:28,658 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:54:28,660 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:54:28,660 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:54:28,660 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:54:28,660 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:54:28,660 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:54:28,661 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 03:54:28,661 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:54:28,661 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 03:54:28,661 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 03:54:28,661 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 -> fb0b06f0fabe52e4995034e0b478ee6377b6d993 [2018-12-31 03:54:28,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:54:28,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:54:28,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:54:28,754 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:54:28,755 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:54:28,755 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_0730c_true-unreach-call.c [2018-12-31 03:54:28,828 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d60106cef/a094a3bc9f0b4dd6b88c2b6a9144406e/FLAGea81ac24e [2018-12-31 03:54:29,347 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:54:29,348 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_0730c_true-unreach-call.c [2018-12-31 03:54:29,356 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d60106cef/a094a3bc9f0b4dd6b88c2b6a9144406e/FLAGea81ac24e [2018-12-31 03:54:29,689 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d60106cef/a094a3bc9f0b4dd6b88c2b6a9144406e [2018-12-31 03:54:29,695 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:54:29,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:54:29,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:54:29,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:54:29,702 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:54:29,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:54:29" (1/1) ... [2018-12-31 03:54:29,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37dca69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:29, skipping insertion in model container [2018-12-31 03:54:29,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:54:29" (1/1) ... [2018-12-31 03:54:29,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:54:29,748 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:54:29,979 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:54:29,987 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:54:30,043 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:54:30,078 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:54:30,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30 WrapperNode [2018-12-31 03:54:30,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:54:30,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:54:30,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:54:30,080 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:54:30,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (1/1) ... [2018-12-31 03:54:30,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (1/1) ... [2018-12-31 03:54:30,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:54:30,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:54:30,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:54:30,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:54:30,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (1/1) ... [2018-12-31 03:54:30,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (1/1) ... [2018-12-31 03:54:30,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (1/1) ... [2018-12-31 03:54:30,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (1/1) ... [2018-12-31 03:54:30,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (1/1) ... [2018-12-31 03:54:30,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (1/1) ... [2018-12-31 03:54:30,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (1/1) ... [2018-12-31 03:54:30,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:54:30,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:54:30,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:54:30,327 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:54:30,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (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 [2018-12-31 03:54:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-31 03:54:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-31 03:54:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 03:54:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-31 03:54:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:54:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:54:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-31 03:54:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 03:54:30,892 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 03:54:34,320 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 03:54:34,498 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:54:34,498 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-12-31 03:54:34,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:54:34 BoogieIcfgContainer [2018-12-31 03:54:34,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:54:34,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:54:34,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:54:34,503 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:54:34,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:54:29" (1/3) ... [2018-12-31 03:54:34,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d40f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:54:34, skipping insertion in model container [2018-12-31 03:54:34,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:54:30" (2/3) ... [2018-12-31 03:54:34,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d40f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:54:34, skipping insertion in model container [2018-12-31 03:54:34,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:54:34" (3/3) ... [2018-12-31 03:54:34,507 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730c_true-unreach-call.c [2018-12-31 03:54:34,518 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:54:34,527 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:54:34,546 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:54:34,581 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:54:34,581 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:54:34,582 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:54:34,582 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:54:34,582 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:54:34,582 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:54:34,582 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:54:34,583 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:54:34,583 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:54:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-12-31 03:54:34,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-31 03:54:34,603 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:34,603 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:34,606 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:34,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:34,611 INFO L82 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2018-12-31 03:54:34,615 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:34,615 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 [2018-12-31 03:54:34,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:54:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:54:35,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:54:35,033 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:54:35,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:54:35,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 03:54:35,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 03:54:35,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 03:54:35,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 03:54:35,069 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2018-12-31 03:54:35,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:35,091 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2018-12-31 03:54:35,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 03:54:35,093 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-12-31 03:54:35,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:35,105 INFO L225 Difference]: With dead ends: 104 [2018-12-31 03:54:35,106 INFO L226 Difference]: Without dead ends: 50 [2018-12-31 03:54:35,109 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 03:54:35,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-31 03:54:35,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-31 03:54:35,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-31 03:54:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2018-12-31 03:54:35,158 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2018-12-31 03:54:35,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:35,158 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2018-12-31 03:54:35,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 03:54:35,159 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2018-12-31 03:54:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 03:54:35,159 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:35,160 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:35,160 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:35,160 INFO L82 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2018-12-31 03:54:35,161 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:35,161 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 [2018-12-31 03:54:35,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:54:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:54:35,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:35,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:54:35,679 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:54:35,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:54:35,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 03:54:35,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 03:54:35,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 03:54:35,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 03:54:35,697 INFO L87 Difference]: Start difference. First operand 50 states and 70 transitions. Second operand 4 states. [2018-12-31 03:54:37,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:37,525 INFO L93 Difference]: Finished difference Result 104 states and 141 transitions. [2018-12-31 03:54:37,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 03:54:37,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-31 03:54:37,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:37,529 INFO L225 Difference]: With dead ends: 104 [2018-12-31 03:54:37,529 INFO L226 Difference]: Without dead ends: 62 [2018-12-31 03:54:37,530 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 03:54:37,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-12-31 03:54:37,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2018-12-31 03:54:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-31 03:54:37,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 68 transitions. [2018-12-31 03:54:37,542 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 68 transitions. Word has length 9 [2018-12-31 03:54:37,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:37,542 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 68 transitions. [2018-12-31 03:54:37,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 03:54:37,542 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2018-12-31 03:54:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-31 03:54:37,543 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:37,543 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:37,543 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:37,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:37,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1929218748, now seen corresponding path program 1 times [2018-12-31 03:54:37,545 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:37,545 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 [2018-12-31 03:54:37,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:54:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:54:37,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:37,754 WARN L181 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 1 [2018-12-31 03:54:37,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:54:37,756 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:54:37,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:54:37,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 03:54:37,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 03:54:37,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 03:54:37,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 03:54:37,768 INFO L87 Difference]: Start difference. First operand 51 states and 68 transitions. Second operand 5 states. [2018-12-31 03:54:38,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:38,038 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2018-12-31 03:54:38,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 03:54:38,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-12-31 03:54:38,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:38,041 INFO L225 Difference]: With dead ends: 63 [2018-12-31 03:54:38,041 INFO L226 Difference]: Without dead ends: 60 [2018-12-31 03:54:38,042 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 03:54:38,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-12-31 03:54:38,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2018-12-31 03:54:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-12-31 03:54:38,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 70 transitions. [2018-12-31 03:54:38,053 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 70 transitions. Word has length 11 [2018-12-31 03:54:38,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:38,054 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 70 transitions. [2018-12-31 03:54:38,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 03:54:38,054 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2018-12-31 03:54:38,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-31 03:54:38,055 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:38,055 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:38,055 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:38,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:38,056 INFO L82 PathProgramCache]: Analyzing trace with hash 264903321, now seen corresponding path program 1 times [2018-12-31 03:54:38,057 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:38,057 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 [2018-12-31 03:54:38,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:54:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:54:38,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:54:38,297 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:54:38,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:54:38,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-31 03:54:38,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-31 03:54:38,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-31 03:54:38,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-31 03:54:38,310 INFO L87 Difference]: Start difference. First operand 53 states and 70 transitions. Second operand 9 states. [2018-12-31 03:54:39,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:39,256 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2018-12-31 03:54:39,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-31 03:54:39,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-12-31 03:54:39,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:39,259 INFO L225 Difference]: With dead ends: 60 [2018-12-31 03:54:39,259 INFO L226 Difference]: Without dead ends: 51 [2018-12-31 03:54:39,260 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-12-31 03:54:39,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-31 03:54:39,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-12-31 03:54:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-31 03:54:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 67 transitions. [2018-12-31 03:54:39,268 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 67 transitions. Word has length 15 [2018-12-31 03:54:39,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:39,268 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 67 transitions. [2018-12-31 03:54:39,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-31 03:54:39,269 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 67 transitions. [2018-12-31 03:54:39,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 03:54:39,270 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:39,270 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:39,271 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:39,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:39,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1807617568, now seen corresponding path program 1 times [2018-12-31 03:54:39,272 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:39,272 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 [2018-12-31 03:54:39,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:54:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:54:39,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:54:39,477 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:54:39,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:54:39,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 03:54:39,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 03:54:39,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 03:54:39,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 03:54:39,489 INFO L87 Difference]: Start difference. First operand 51 states and 67 transitions. Second operand 5 states. [2018-12-31 03:54:39,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:39,997 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2018-12-31 03:54:39,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 03:54:39,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-31 03:54:39,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:39,999 INFO L225 Difference]: With dead ends: 87 [2018-12-31 03:54:39,999 INFO L226 Difference]: Without dead ends: 52 [2018-12-31 03:54:40,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-31 03:54:40,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-31 03:54:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2018-12-31 03:54:40,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-31 03:54:40,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2018-12-31 03:54:40,008 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 27 [2018-12-31 03:54:40,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:40,009 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2018-12-31 03:54:40,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 03:54:40,009 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2018-12-31 03:54:40,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-31 03:54:40,010 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:40,010 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:40,010 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:40,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:40,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1685732611, now seen corresponding path program 1 times [2018-12-31 03:54:40,012 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:40,012 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 [2018-12-31 03:54:40,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:54:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:54:40,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:40,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-31 03:54:40,108 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:54:40,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:54:40,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 03:54:40,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 03:54:40,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 03:54:40,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 03:54:40,125 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 3 states. [2018-12-31 03:54:40,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:40,186 INFO L93 Difference]: Finished difference Result 83 states and 110 transitions. [2018-12-31 03:54:40,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 03:54:40,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-12-31 03:54:40,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:40,188 INFO L225 Difference]: With dead ends: 83 [2018-12-31 03:54:40,189 INFO L226 Difference]: Without dead ends: 54 [2018-12-31 03:54:40,189 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 03:54:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-31 03:54:40,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-12-31 03:54:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-31 03:54:40,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2018-12-31 03:54:40,197 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 32 [2018-12-31 03:54:40,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:40,198 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2018-12-31 03:54:40,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 03:54:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2018-12-31 03:54:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-31 03:54:40,199 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:40,199 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:40,199 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:40,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1622546113, now seen corresponding path program 1 times [2018-12-31 03:54:40,200 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:40,201 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 [2018-12-31 03:54:40,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:54:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:54:40,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:40,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-31 03:54:40,328 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-31 03:54:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-31 03:54:40,392 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 03:54:40,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-12-31 03:54:40,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 03:54:40,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 03:54:40,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-12-31 03:54:40,394 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand 6 states. [2018-12-31 03:54:40,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:40,534 INFO L93 Difference]: Finished difference Result 90 states and 121 transitions. [2018-12-31 03:54:40,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 03:54:40,535 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-12-31 03:54:40,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:40,536 INFO L225 Difference]: With dead ends: 90 [2018-12-31 03:54:40,536 INFO L226 Difference]: Without dead ends: 61 [2018-12-31 03:54:40,537 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-12-31 03:54:40,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-12-31 03:54:40,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-12-31 03:54:40,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-12-31 03:54:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 79 transitions. [2018-12-31 03:54:40,547 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 79 transitions. Word has length 35 [2018-12-31 03:54:40,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:40,547 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 79 transitions. [2018-12-31 03:54:40,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 03:54:40,548 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2018-12-31 03:54:40,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-31 03:54:40,549 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:40,549 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:40,550 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:40,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:40,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1312115587, now seen corresponding path program 2 times [2018-12-31 03:54:40,550 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:40,551 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 [2018-12-31 03:54:40,557 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-31 03:54:40,630 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-12-31 03:54:40,630 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 03:54:40,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-12-31 03:54:40,668 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:54:40,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:54:40,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 03:54:40,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 03:54:40,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 03:54:40,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 03:54:40,685 INFO L87 Difference]: Start difference. First operand 61 states and 79 transitions. Second operand 4 states. [2018-12-31 03:54:40,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:40,816 INFO L93 Difference]: Finished difference Result 89 states and 117 transitions. [2018-12-31 03:54:40,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 03:54:40,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-12-31 03:54:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:40,819 INFO L225 Difference]: With dead ends: 89 [2018-12-31 03:54:40,819 INFO L226 Difference]: Without dead ends: 68 [2018-12-31 03:54:40,820 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 03:54:40,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-12-31 03:54:40,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2018-12-31 03:54:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-12-31 03:54:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2018-12-31 03:54:40,836 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 44 [2018-12-31 03:54:40,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:40,840 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2018-12-31 03:54:40,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 03:54:40,841 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2018-12-31 03:54:40,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-31 03:54:40,842 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:40,842 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:40,842 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:40,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:40,843 INFO L82 PathProgramCache]: Analyzing trace with hash -84795879, now seen corresponding path program 1 times [2018-12-31 03:54:40,843 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:40,843 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-12-31 03:54:40,850 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-31 03:54:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:54:40,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-31 03:54:41,020 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-31 03:54:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-31 03:54:41,138 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 03:54:41,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-12-31 03:54:41,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-31 03:54:41,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-31 03:54:41,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2018-12-31 03:54:41,139 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 12 states. [2018-12-31 03:54:42,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:42,018 INFO L93 Difference]: Finished difference Result 110 states and 150 transitions. [2018-12-31 03:54:42,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-31 03:54:42,020 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-12-31 03:54:42,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:42,022 INFO L225 Difference]: With dead ends: 110 [2018-12-31 03:54:42,022 INFO L226 Difference]: Without dead ends: 80 [2018-12-31 03:54:42,023 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2018-12-31 03:54:42,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-12-31 03:54:42,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-12-31 03:54:42,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-12-31 03:54:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2018-12-31 03:54:42,037 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 104 transitions. Word has length 47 [2018-12-31 03:54:42,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:42,037 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 104 transitions. [2018-12-31 03:54:42,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-31 03:54:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 104 transitions. [2018-12-31 03:54:42,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-31 03:54:42,042 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:54:42,042 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:54:42,042 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:54:42,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:54:42,043 INFO L82 PathProgramCache]: Analyzing trace with hash -508626855, now seen corresponding path program 2 times [2018-12-31 03:54:42,043 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:54:42,043 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-12-31 03:54:42,058 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-31 03:54:42,176 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-12-31 03:54:42,177 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 03:54:42,199 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:54:42,349 INFO L683 Elim1Store]: detected equality via solver [2018-12-31 03:54:42,359 INFO L683 Elim1Store]: detected equality via solver [2018-12-31 03:54:42,372 INFO L683 Elim1Store]: detected equality via solver [2018-12-31 03:54:42,385 INFO L683 Elim1Store]: detected equality via solver [2018-12-31 03:54:42,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 76 [2018-12-31 03:54:42,433 INFO L683 Elim1Store]: detected equality via solver [2018-12-31 03:54:42,436 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 63 [2018-12-31 03:54:42,437 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-31 03:54:42,641 INFO L478 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 39 treesize of output 29 [2018-12-31 03:54:42,661 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-12-31 03:54:42,662 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-31 03:54:42,689 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-31 03:54:42,714 INFO L478 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 25 treesize of output 19 [2018-12-31 03:54:42,721 INFO L683 Elim1Store]: detected equality via solver [2018-12-31 03:54:42,722 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-12-31 03:54:42,723 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-31 03:54:42,731 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-31 03:54:42,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-31 03:54:42,789 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-31 03:54:42,789 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:69, output treesize:33 [2018-12-31 03:54:42,987 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-12-31 03:54:42,987 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:54:43,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:54:43,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 03:54:43,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 03:54:43,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 03:54:43,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 03:54:43,004 INFO L87 Difference]: Start difference. First operand 80 states and 104 transitions. Second operand 4 states. [2018-12-31 03:54:43,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:54:43,079 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2018-12-31 03:54:43,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 03:54:43,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2018-12-31 03:54:43,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:54:43,086 INFO L225 Difference]: With dead ends: 80 [2018-12-31 03:54:43,086 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 03:54:43,087 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 03:54:43,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 03:54:43,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 03:54:43,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 03:54:43,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 03:54:43,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2018-12-31 03:54:43,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:54:43,088 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 03:54:43,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 03:54:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 03:54:43,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 03:54:43,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 03:54:43,327 WARN L181 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-12-31 03:54:43,372 INFO L444 ceAbstractionStarter]: At program point L126(lines 19 127) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start___ieee754_sqrt_~x) (= |ULTIMATE.start___ieee754_sqrt_#res| (_ +zero 11 53))) [2018-12-31 03:54:43,372 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 94) no Hoare annotation was computed. [2018-12-31 03:54:43,372 INFO L448 ceAbstractionStarter]: For program point L85-2(lines 85 94) no Hoare annotation was computed. [2018-12-31 03:54:43,372 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 55) no Hoare annotation was computed. [2018-12-31 03:54:43,372 INFO L448 ceAbstractionStarter]: For program point L44-2(lines 44 55) no Hoare annotation was computed. [2018-12-31 03:54:43,372 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 113) no Hoare annotation was computed. [2018-12-31 03:54:43,372 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 41) no Hoare annotation was computed. [2018-12-31 03:54:43,372 INFO L444 ceAbstractionStarter]: At program point L69-2(lines 69 79) the Hoare annotation is: false [2018-12-31 03:54:43,373 INFO L448 ceAbstractionStarter]: For program point L36-2(lines 36 41) no Hoare annotation was computed. [2018-12-31 03:54:43,373 INFO L448 ceAbstractionStarter]: For program point L69-3(lines 69 79) no Hoare annotation was computed. [2018-12-31 03:54:43,373 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 03:54:43,373 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 03:54:43,373 INFO L444 ceAbstractionStarter]: At program point L45-2(lines 45 49) the Hoare annotation is: false [2018-12-31 03:54:43,373 INFO L448 ceAbstractionStarter]: For program point L45-3(lines 45 49) no Hoare annotation was computed. [2018-12-31 03:54:43,373 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 40) no Hoare annotation was computed. [2018-12-31 03:54:43,373 INFO L448 ceAbstractionStarter]: For program point L153(line 153) no Hoare annotation was computed. [2018-12-31 03:54:43,373 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2018-12-31 03:54:43,373 INFO L448 ceAbstractionStarter]: For program point L87(lines 87 88) no Hoare annotation was computed. [2018-12-31 03:54:43,374 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 120 125) no Hoare annotation was computed. [2018-12-31 03:54:43,374 INFO L448 ceAbstractionStarter]: For program point L153-2(lines 153 156) no Hoare annotation was computed. [2018-12-31 03:54:43,374 INFO L444 ceAbstractionStarter]: At program point L120-2(lines 120 125) the Hoare annotation is: false [2018-12-31 03:54:43,374 INFO L448 ceAbstractionStarter]: For program point L87-2(lines 87 88) no Hoare annotation was computed. [2018-12-31 03:54:43,374 INFO L448 ceAbstractionStarter]: For program point L120-3(lines 120 125) no Hoare annotation was computed. [2018-12-31 03:54:43,374 INFO L448 ceAbstractionStarter]: For program point L104(lines 104 112) no Hoare annotation was computed. [2018-12-31 03:54:43,374 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 75) no Hoare annotation was computed. [2018-12-31 03:54:43,374 INFO L448 ceAbstractionStarter]: For program point L71-2(lines 71 75) no Hoare annotation was computed. [2018-12-31 03:54:43,374 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-31 03:54:43,376 INFO L444 ceAbstractionStarter]: At program point L138(lines 129 139) the Hoare annotation is: (and (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) (= (_ +zero 11 53) ULTIMATE.start___ieee754_sqrt_~x) (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res|) |ULTIMATE.start_main_#t~short11| (= |ULTIMATE.start___ieee754_sqrt_#res| (_ +zero 11 53)) (exists ((|v_q#valueAsBitvector_4| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_q#valueAsBitvector_4|) ULTIMATE.start___signbit_double_~msw~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_q#valueAsBitvector_4|) ((_ extract 62 52) |v_q#valueAsBitvector_4|) ((_ extract 51 0) |v_q#valueAsBitvector_4|)))))) [2018-12-31 03:54:43,376 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 40) no Hoare annotation was computed. [2018-12-31 03:54:43,376 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-12-31 03:54:43,376 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-12-31 03:54:43,376 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-12-31 03:54:43,377 INFO L444 ceAbstractionStarter]: At program point L82-2(lines 82 98) the Hoare annotation is: false [2018-12-31 03:54:43,377 INFO L448 ceAbstractionStarter]: For program point L82-3(lines 19 127) no Hoare annotation was computed. [2018-12-31 03:54:43,377 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 112) no Hoare annotation was computed. [2018-12-31 03:54:43,377 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 132 136) no Hoare annotation was computed. [2018-12-31 03:54:43,377 INFO L444 ceAbstractionStarter]: At program point L132-2(lines 132 136) the Hoare annotation is: (and (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) (= (_ +zero 11 53) ULTIMATE.start___ieee754_sqrt_~x) |ULTIMATE.start_main_#t~short11| (= |ULTIMATE.start___ieee754_sqrt_#res| (_ +zero 11 53))) [2018-12-31 03:54:43,377 INFO L448 ceAbstractionStarter]: For program point L132-3(lines 132 136) no Hoare annotation was computed. [2018-12-31 03:54:43,377 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 03:54:43,377 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 61) no Hoare annotation was computed. [2018-12-31 03:54:43,377 INFO L448 ceAbstractionStarter]: For program point L25-1(lines 25 30) no Hoare annotation was computed. [2018-12-31 03:54:43,377 INFO L448 ceAbstractionStarter]: For program point L58-2(lines 58 61) no Hoare annotation was computed. [2018-12-31 03:54:43,378 INFO L444 ceAbstractionStarter]: At program point L25-2(lines 25 30) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start___ieee754_sqrt_~x) (= (bvadd ULTIMATE.start___ieee754_sqrt_~sign~0 (_ bv2147483648 32)) (_ bv0 32))) [2018-12-31 03:54:43,378 INFO L448 ceAbstractionStarter]: For program point L25-3(lines 19 127) no Hoare annotation was computed. [2018-12-31 03:54:43,378 INFO L448 ceAbstractionStarter]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2018-12-31 03:54:43,378 INFO L444 ceAbstractionStarter]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2018-12-31 03:54:43,378 INFO L448 ceAbstractionStarter]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2018-12-31 03:54:43,378 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 109) no Hoare annotation was computed. [2018-12-31 03:54:43,378 INFO L448 ceAbstractionStarter]: For program point L108-2(lines 108 109) no Hoare annotation was computed. [2018-12-31 03:54:43,378 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 114) no Hoare annotation was computed. [2018-12-31 03:54:43,378 INFO L451 ceAbstractionStarter]: At program point L158(lines 141 159) the Hoare annotation is: true [2018-12-31 03:54:43,378 INFO L448 ceAbstractionStarter]: For program point L117(lines 117 118) no Hoare annotation was computed. [2018-12-31 03:54:43,379 INFO L448 ceAbstractionStarter]: For program point L117-2(lines 117 118) no Hoare annotation was computed. [2018-12-31 03:54:43,389 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,389 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,396 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,397 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,397 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,397 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:54:43 BoogieIcfgContainer [2018-12-31 03:54:43,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:54:43,404 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:54:43,404 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:54:43,405 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:54:43,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:54:34" (3/4) ... [2018-12-31 03:54:43,411 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 03:54:43,427 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-31 03:54:43,428 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-31 03:54:43,457 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~Pluszero~LONGDOUBLE() == x && \result == ~Pluszero~LONGDOUBLE() [2018-12-31 03:54:43,458 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((res == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE() [2018-12-31 03:54:43,459 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == x) && 0bv32 == \result) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && (\exists v_q#valueAsBitvector_4 : bv64 :: v_q#valueAsBitvector_4[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_q#valueAsBitvector_4[63:63], v_q#valueAsBitvector_4[62:52], v_q#valueAsBitvector_4[51:0])) [2018-12-31 03:54:43,529 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 03:54:43,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:54:43,531 INFO L168 Benchmark]: Toolchain (without parser) took 13834.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:43,531 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:54:43,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.45 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:43,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.2 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:43,532 INFO L168 Benchmark]: Boogie Preprocessor took 93.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:43,533 INFO L168 Benchmark]: RCFGBuilder took 4171.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:43,533 INFO L168 Benchmark]: TraceAbstraction took 8903.40 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -89.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:54:43,533 INFO L168 Benchmark]: Witness Printer took 125.94 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: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:54:43,539 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 380.45 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 153.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.2 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 93.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 4171.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8903.40 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -89.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 125.94 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: 7.6 MB). Peak memory consumption was 7.6 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[v_q#valueAsBitvector_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant [2018-12-31 03:54:43,546 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,546 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,546 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,547 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,547 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,547 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,548 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] [2018-12-31 03:54:43,549 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_q#valueAsBitvector_4,QUANTIFIED] Derived loop invariant: (((((res == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == x) && 0bv32 == \result) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && (\exists v_q#valueAsBitvector_4 : bv64 :: v_q#valueAsBitvector_4[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_q#valueAsBitvector_4[63:63], v_q#valueAsBitvector_4[62:52], v_q#valueAsBitvector_4[51:0])) - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x && ~bvadd64(sign, 2147483648bv32) == 0bv32 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((res == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x && \result == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. SAFE Result, 8.8s OverallTime, 10 OverallIterations, 10 TraceHistogramMax, 4.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 552 SDtfs, 469 SDslu, 1002 SDs, 0 SdLazy, 334 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 377 GetRequests, 326 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=9, 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 27 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 68 HoareAnnotationTreeSize, 10 FomulaSimplifications, 141 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 293 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 363 ConstructedInterpolants, 15 QuantifiedInterpolants, 40259 SizeOfPredicates, 35 NumberOfNonLiveVariables, 661 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 177/223 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...