/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052d_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 204277589f1e9105606b7fb7cfd8af760c5fd585 ...................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052d_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 204277589f1e9105606b7fb7cfd8af760c5fd585 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:02:42,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:42,253 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:42,265 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:42,266 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:42,267 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:42,268 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:42,270 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:42,272 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:42,273 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:42,274 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:42,274 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:42,275 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:42,277 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:42,278 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:42,279 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:42,280 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:42,282 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:42,285 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:42,287 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:42,288 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:42,290 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:42,292 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:42,292 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:42,293 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:42,294 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:42,295 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:42,296 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:42,300 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:42,301 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:42,302 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:42,302 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:42,304 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:42,304 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:42,308 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:42,309 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:42,309 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:02:42,340 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:42,341 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:42,342 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:42,342 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:42,344 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:42,345 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:42,345 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:42,345 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:42,345 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:42,346 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:02:42,346 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:42,346 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:42,346 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:42,346 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:42,346 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:42,347 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:42,347 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:42,347 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:42,347 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:42,347 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:42,350 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:42,350 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:42,350 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:42,350 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:42,350 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:42,351 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:42,351 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:02:42,351 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:42,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:02:42,351 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 -> 204277589f1e9105606b7fb7cfd8af760c5fd585 [2018-09-20 15:02:42,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:42,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:42,445 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:42,447 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:42,447 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:42,448 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-09-20 15:02:42,782 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65c2bbca/a8f0208856004088b5dd3f6d067b6030/FLAGdfd4854e1 [2018-09-20 15:02:43,022 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:43,023 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-09-20 15:02:43,033 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65c2bbca/a8f0208856004088b5dd3f6d067b6030/FLAGdfd4854e1 [2018-09-20 15:02:43,048 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65c2bbca/a8f0208856004088b5dd3f6d067b6030 [2018-09-20 15:02:43,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:43,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:43,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:43,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:43,063 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:43,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:43" (1/1) ... [2018-09-20 15:02:43,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a0cd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43, skipping insertion in model container [2018-09-20 15:02:43,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:43" (1/1) ... [2018-09-20 15:02:43,080 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:43,333 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:43,348 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:43,370 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:43,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43 WrapperNode [2018-09-20 15:02:43,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:43,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:43,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:43,401 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:43,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43" (1/1) ... [2018-09-20 15:02:43,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43" (1/1) ... [2018-09-20 15:02:43,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43" (1/1) ... [2018-09-20 15:02:43,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43" (1/1) ... [2018-09-20 15:02:43,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43" (1/1) ... [2018-09-20 15:02:43,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43" (1/1) ... [2018-09-20 15:02:43,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43" (1/1) ... [2018-09-20 15:02:43,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:43,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:43,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:43,456 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:43,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-20 15:02:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:02:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-20 15:02:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:02:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:02:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:02:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:02:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:02:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:02:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:02:44,297 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:44,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:44 BoogieIcfgContainer [2018-09-20 15:02:44,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:44,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:44,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:44,303 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:44,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:43" (1/3) ... [2018-09-20 15:02:44,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c1c315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:44, skipping insertion in model container [2018-09-20 15:02:44,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:43" (2/3) ... [2018-09-20 15:02:44,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c1c315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:44, skipping insertion in model container [2018-09-20 15:02:44,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:44" (3/3) ... [2018-09-20 15:02:44,307 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d_true-unreach-call.c [2018-09-20 15:02:44,318 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:44,328 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:44,377 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:44,378 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:44,378 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:44,378 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:44,378 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:44,378 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:44,379 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:44,379 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:44,379 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:44,403 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-09-20 15:02:44,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-20 15:02:44,411 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:44,412 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:44,417 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:44,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1646053515, now seen corresponding path program 1 times [2018-09-20 15:02:44,426 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:44,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:44,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:44,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:44,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:44,576 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:44,577 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:44,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:44,596 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:44,596 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:44,599 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2018-09-20 15:02:44,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:44,632 INFO L93 Difference]: Finished difference Result 154 states and 199 transitions. [2018-09-20 15:02:44,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:44,634 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-20 15:02:44,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:44,646 INFO L225 Difference]: With dead ends: 154 [2018-09-20 15:02:44,646 INFO L226 Difference]: Without dead ends: 77 [2018-09-20 15:02:44,650 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:44,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-20 15:02:44,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-20 15:02:44,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-20 15:02:44,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2018-09-20 15:02:44,698 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 19 [2018-09-20 15:02:44,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:44,700 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2018-09-20 15:02:44,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:44,700 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2018-09-20 15:02:44,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:02:44,702 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:44,702 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:44,703 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:44,705 INFO L82 PathProgramCache]: Analyzing trace with hash -414785187, now seen corresponding path program 1 times [2018-09-20 15:02:44,705 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:44,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:44,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:44,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:44,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:44,897 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:02:44,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:44 BoogieIcfgContainer [2018-09-20 15:02:44,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:44,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:44,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:44,961 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:44,962 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:44" (3/4) ... [2018-09-20 15:02:44,966 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:02:44,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:44,969 INFO L168 Benchmark]: Toolchain (without parser) took 1916.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -110.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:44,972 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:44,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.49 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:44,974 INFO L168 Benchmark]: Boogie Preprocessor took 54.48 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:44,976 INFO L168 Benchmark]: RCFGBuilder took 842.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:44,978 INFO L168 Benchmark]: TraceAbstraction took 660.60 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:44,979 INFO L168 Benchmark]: Witness Printer took 7.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:44,986 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 344.49 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.48 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 842.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 660.60 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Witness Printer took 7.25 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: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=10737418244, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] CALL, EXPR floor_double(x) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L20] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=0, ew_u={10737418245:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L21] FCALL ew_u.value = (x) VAL [\old(x)=0, ew_u={10737418245:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L22] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=0, ew_u={10737418245:0}, ew_u.parts.msw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L22] (i0) = ew_u.parts.msw VAL [\old(x)=0, ew_u={10737418245:0}, ew_u.parts.msw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, x=0] [L22] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=10737418247, \old(x)=0, ew_u={10737418245:0}, ew_u.parts.msw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, x=0] [L23] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=0, ew_u={10737418245:0}, ew_u.parts.lsw=10737418240, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, x=0] [L23] (i1) = ew_u.parts.lsw VAL [\old(x)=0, ew_u={10737418245:0}, ew_u.parts.lsw=10737418240, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=0] [L23] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=10737418243, \old(x)=0, ew_u={10737418245:0}, ew_u.parts.lsw=10737418240, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=0] [L24] COND FALSE !(0) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=0] [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=0] [L26] COND FALSE !(j0 < 20) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=1024, x=0] [L47] COND TRUE j0 > 51 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=1024, x=0] [L48] COND TRUE j0 == 0x400 [L49] RET return x + x; VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=1024, x=0] [L99] EXPR floor_double(x) VAL [floor_double(x)=10737418242, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] double res = floor_double(x); [L102] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418242, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L102] COND FALSE, EXPR !(res == 0.0 && __signbit_double(res) == 0) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418242, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L102] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418242, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 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=81occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:02:47,420 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:47,422 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:47,434 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:47,435 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:47,436 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:47,437 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:47,439 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:47,440 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:47,441 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:47,442 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:47,443 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:47,443 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:47,444 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:47,445 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:47,446 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:47,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:47,449 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:47,451 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:47,453 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:47,454 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:47,455 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:47,458 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:47,458 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:47,458 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:47,459 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:47,460 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:47,461 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:47,462 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:47,463 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:47,464 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:47,464 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:47,465 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:47,465 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:47,466 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:47,467 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:47,467 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:02:47,498 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:47,498 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:47,499 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:47,501 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:47,502 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:47,502 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:47,502 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:47,502 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:47,503 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:47,503 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:47,503 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:47,503 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:47,503 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:47,503 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:47,504 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:02:47,504 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:02:47,504 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:47,504 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:47,506 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:47,506 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:47,506 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:47,507 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:47,507 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:47,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:47,507 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:47,507 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:47,508 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:47,508 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:02:47,508 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:47,508 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:02:47,508 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:02:47,509 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 -> 204277589f1e9105606b7fb7cfd8af760c5fd585 [2018-09-20 15:02:47,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:47,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:47,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:47,612 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:47,613 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:47,614 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-09-20 15:02:47,984 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b438f3a6/53802429a1684c1394363c1019efe531/FLAGbeeadcaf8 [2018-09-20 15:02:48,167 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:48,167 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-09-20 15:02:48,176 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b438f3a6/53802429a1684c1394363c1019efe531/FLAGbeeadcaf8 [2018-09-20 15:02:48,193 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b438f3a6/53802429a1684c1394363c1019efe531 [2018-09-20 15:02:48,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:48,200 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:48,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:48,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:48,209 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:48,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:48" (1/1) ... [2018-09-20 15:02:48,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ef386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48, skipping insertion in model container [2018-09-20 15:02:48,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:48" (1/1) ... [2018-09-20 15:02:48,225 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:48,528 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:48,558 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:48,616 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:48,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48 WrapperNode [2018-09-20 15:02:48,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:48,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:48,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:48,682 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:48,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48" (1/1) ... [2018-09-20 15:02:48,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48" (1/1) ... [2018-09-20 15:02:48,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48" (1/1) ... [2018-09-20 15:02:48,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48" (1/1) ... [2018-09-20 15:02:48,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48" (1/1) ... [2018-09-20 15:02:48,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48" (1/1) ... [2018-09-20 15:02:48,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48" (1/1) ... [2018-09-20 15:02:48,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:48,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:48,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:48,773 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:48,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-20 15:02:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:02:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-20 15:02:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:02:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:02:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:02:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:02:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:02:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:02:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:02:49,122 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:49,178 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:49,876 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:49,902 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:49,919 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:51,675 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:51,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:51 BoogieIcfgContainer [2018-09-20 15:02:51,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:51,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:51,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:51,681 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:51,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:48" (1/3) ... [2018-09-20 15:02:51,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59be55a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:51, skipping insertion in model container [2018-09-20 15:02:51,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:48" (2/3) ... [2018-09-20 15:02:51,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59be55a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:51, skipping insertion in model container [2018-09-20 15:02:51,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:51" (3/3) ... [2018-09-20 15:02:51,686 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d_true-unreach-call.c [2018-09-20 15:02:51,694 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:51,702 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:51,749 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:51,750 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:51,750 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:51,750 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:51,751 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:51,751 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:51,751 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:51,751 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:51,751 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:51,772 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-09-20 15:02:51,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-20 15:02:51,780 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:51,781 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:51,784 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:51,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1646053515, now seen corresponding path program 1 times [2018-09-20 15:02:51,795 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:51,796 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:51,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:51,931 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:51,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:51,954 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:51,974 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:51,975 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:51,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:51,996 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:51,997 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:52,000 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2018-09-20 15:02:52,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:52,036 INFO L93 Difference]: Finished difference Result 154 states and 199 transitions. [2018-09-20 15:02:52,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:52,039 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-20 15:02:52,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:52,054 INFO L225 Difference]: With dead ends: 154 [2018-09-20 15:02:52,054 INFO L226 Difference]: Without dead ends: 77 [2018-09-20 15:02:52,058 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:52,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-20 15:02:52,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-20 15:02:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-20 15:02:52,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2018-09-20 15:02:52,109 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 19 [2018-09-20 15:02:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:52,110 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2018-09-20 15:02:52,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:52,110 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2018-09-20 15:02:52,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:02:52,112 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:52,112 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:52,112 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:52,113 INFO L82 PathProgramCache]: Analyzing trace with hash -414785187, now seen corresponding path program 1 times [2018-09-20 15:02:52,114 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:52,114 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) [2018-09-20 15:02:52,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:52,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:52,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:02:52,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:52,393 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:52,399 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:52,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:52,423 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:52,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:02:52,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:52,494 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:52,505 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:52,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:52,518 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:53,006 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:53,022 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:53,023 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:53,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:53,027 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:53,028 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:53,028 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand 9 states. [2018-09-20 15:02:54,117 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:03:00,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:00,375 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2018-09-20 15:03:00,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-20 15:03:00,376 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-20 15:03:00,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:00,380 INFO L225 Difference]: With dead ends: 150 [2018-09-20 15:03:00,380 INFO L226 Difference]: Without dead ends: 86 [2018-09-20 15:03:00,383 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:03:00,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-20 15:03:00,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 68. [2018-09-20 15:03:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-09-20 15:03:00,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-09-20 15:03:00,394 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 32 [2018-09-20 15:03:00,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:00,394 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-09-20 15:03:00,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:03:00,395 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-09-20 15:03:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:03:00,396 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:00,396 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:00,396 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:00,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1355929740, now seen corresponding path program 1 times [2018-09-20 15:03:00,397 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:00,398 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:00,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:00,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:00,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:03:00,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:03:00,569 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:00,582 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:00,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:00,599 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:03:00,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:03:00,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:03:00,659 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:00,664 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:00,675 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:00,676 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:03:00,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:00,932 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:00,945 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:00,946 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:03:00,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:03:00,947 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:03:00,947 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:03:00,947 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 9 states. [2018-09-20 15:03:06,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:06,383 INFO L93 Difference]: Finished difference Result 137 states and 144 transitions. [2018-09-20 15:03:06,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-20 15:03:06,385 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-20 15:03:06,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:06,387 INFO L225 Difference]: With dead ends: 137 [2018-09-20 15:03:06,387 INFO L226 Difference]: Without dead ends: 79 [2018-09-20 15:03:06,388 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:03:06,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-09-20 15:03:06,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 64. [2018-09-20 15:03:06,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-20 15:03:06,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-09-20 15:03:06,397 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 32 [2018-09-20 15:03:06,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:06,397 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-09-20 15:03:06,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:03:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-09-20 15:03:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-20 15:03:06,399 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:06,399 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:06,399 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:06,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1719063233, now seen corresponding path program 1 times [2018-09-20 15:03:06,400 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:06,400 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:06,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:06,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:10,240 WARN L178 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 15:03:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:10,264 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:10,274 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:10,274 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-20 15:03:10,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-20 15:03:10,275 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-20 15:03:10,275 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-20 15:03:10,275 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 6 states. [2018-09-20 15:03:14,588 WARN L178 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 15:03:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:15,322 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2018-09-20 15:03:15,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 15:03:15,334 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-09-20 15:03:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:15,337 INFO L225 Difference]: With dead ends: 100 [2018-09-20 15:03:15,337 INFO L226 Difference]: Without dead ends: 64 [2018-09-20 15:03:15,338 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-20 15:03:15,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-20 15:03:15,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-09-20 15:03:15,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-20 15:03:15,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2018-09-20 15:03:15,355 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 45 [2018-09-20 15:03:15,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:15,355 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2018-09-20 15:03:15,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-20 15:03:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2018-09-20 15:03:15,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:03:15,356 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:15,356 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:15,357 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:15,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1060697608, now seen corresponding path program 1 times [2018-09-20 15:03:15,357 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:15,357 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:15,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:15,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:15,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-20 15:03:15,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-20 15:03:15,787 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:15,817 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:15,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:15,844 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-09-20 15:03:15,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-09-20 15:03:15,889 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:15,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-09-20 15:03:15,891 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:15,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:15,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:15,920 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2018-09-20 15:03:15,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2018-09-20 15:03:16,003 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:16,005 INFO L477 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 46 treesize of output 22 [2018-09-20 15:03:16,005 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:16,033 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:16,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:16,041 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:62, output treesize:15 [2018-09-20 15:03:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:16,237 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:16,256 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:16,256 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:03:16,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:03:16,259 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:03:16,259 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:03:16,259 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand 10 states. [2018-09-20 15:03:16,826 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2018-09-20 15:03:17,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:17,160 INFO L93 Difference]: Finished difference Result 84 states and 86 transitions. [2018-09-20 15:03:17,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:03:17,162 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2018-09-20 15:03:17,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:17,164 INFO L225 Difference]: With dead ends: 84 [2018-09-20 15:03:17,164 INFO L226 Difference]: Without dead ends: 81 [2018-09-20 15:03:17,165 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-20 15:03:17,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-20 15:03:17,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-20 15:03:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-20 15:03:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 83 transitions. [2018-09-20 15:03:17,174 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 83 transitions. Word has length 46 [2018-09-20 15:03:17,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:17,174 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 83 transitions. [2018-09-20 15:03:17,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:03:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2018-09-20 15:03:17,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-20 15:03:17,176 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:17,176 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:17,176 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:17,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1042625013, now seen corresponding path program 1 times [2018-09-20 15:03:17,177 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:17,177 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:17,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:17,319 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:17,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:03:17,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:03:17,366 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:17,372 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:17,388 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:17,389 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:03:17,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:03:17,458 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:03:17,458 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:17,461 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:17,509 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:17,509 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:03:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:17,803 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:17,821 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:17,821 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:03:17,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:03:17,822 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:03:17,822 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:03:17,822 INFO L87 Difference]: Start difference. First operand 81 states and 83 transitions. Second operand 8 states. [2018-09-20 15:03:19,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:19,563 INFO L93 Difference]: Finished difference Result 115 states and 116 transitions. [2018-09-20 15:03:19,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:03:19,564 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2018-09-20 15:03:19,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:19,565 INFO L225 Difference]: With dead ends: 115 [2018-09-20 15:03:19,566 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:03:19,566 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:03:19,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:03:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:03:19,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:03:19,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 62 transitions. [2018-09-20 15:03:19,573 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 62 transitions. Word has length 47 [2018-09-20 15:03:19,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:19,573 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 62 transitions. [2018-09-20 15:03:19,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:03:19,573 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 62 transitions. [2018-09-20 15:03:19,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-20 15:03:19,574 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:19,575 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:19,575 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:19,575 INFO L82 PathProgramCache]: Analyzing trace with hash -2039495137, now seen corresponding path program 1 times [2018-09-20 15:03:19,575 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:19,576 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:19,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:19,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:19,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-20 15:03:19,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-20 15:03:19,866 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:19,871 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:19,882 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:19,882 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-09-20 15:03:19,933 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-09-20 15:03:19,961 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:19,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-09-20 15:03:19,962 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:19,973 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:19,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:19,983 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2018-09-20 15:03:20,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2018-09-20 15:03:20,031 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:20,032 INFO L477 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 46 treesize of output 22 [2018-09-20 15:03:20,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:20,040 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:20,043 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:20,043 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:62, output treesize:15 [2018-09-20 15:03:20,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:03:20,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:03:20,216 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:20,234 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:20,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:20,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:03:20,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:03:20,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:03:20,380 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:20,383 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:20,395 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:20,395 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:03:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:20,739 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:20,751 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:20,752 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-09-20 15:03:20,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-20 15:03:20,752 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-20 15:03:20,753 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:03:20,753 INFO L87 Difference]: Start difference. First operand 63 states and 62 transitions. Second operand 17 states. [2018-09-20 15:03:22,499 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-20 15:03:22,887 WARN L178 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:03:23,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:23,737 INFO L93 Difference]: Finished difference Result 63 states and 62 transitions. [2018-09-20 15:03:23,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-20 15:03:23,739 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 62 [2018-09-20 15:03:23,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:23,741 INFO L225 Difference]: With dead ends: 63 [2018-09-20 15:03:23,741 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:03:23,742 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=134, Invalid=922, Unknown=0, NotChecked=0, Total=1056 [2018-09-20 15:03:23,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:03:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:03:23,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:03:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:03:23,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-09-20 15:03:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:23,744 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:03:23,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-20 15:03:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:03:23,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:03:23,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:03:24,112 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-09-20 15:03:24,224 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-09-20 15:03:24,224 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-09-20 15:03:24,225 INFO L422 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (or (= floor_double_~x |floor_double_#in~x|) (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-09-20 15:03:24,225 INFO L426 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2018-09-20 15:03:24,225 INFO L426 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-09-20 15:03:24,225 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-09-20 15:03:24,225 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:03:24,225 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:03:24,226 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:03:24,226 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-20 15:03:24,226 INFO L429 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-09-20 15:03:24,226 INFO L426 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-09-20 15:03:24,226 INFO L426 ceAbstractionStarter]: For program point L70-2(lines 16 77) no Hoare annotation was computed. [2018-09-20 15:03:24,226 INFO L426 ceAbstractionStarter]: For program point L70-3(lines 70 75) no Hoare annotation was computed. [2018-09-20 15:03:24,226 INFO L426 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-09-20 15:03:24,226 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-09-20 15:03:24,226 INFO L426 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L71-1(line 71) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L71-2(line 71) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L71-3(line 71) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-20 15:03:24,227 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-20 15:03:24,228 INFO L426 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-09-20 15:03:24,228 INFO L426 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-09-20 15:03:24,228 INFO L426 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-09-20 15:03:24,228 INFO L426 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-09-20 15:03:24,228 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:03:24,228 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:03:24,228 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:03:24,232 INFO L426 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-09-20 15:03:24,232 INFO L426 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-09-20 15:03:24,232 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-20 15:03:24,232 INFO L426 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-09-20 15:03:24,232 INFO L426 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:03:24,232 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point L74-2(line 74) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point L74-3(line 74) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-09-20 15:03:24,233 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:03:24,234 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:03:24,234 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:03:24,234 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 79 89) no Hoare annotation was computed. [2018-09-20 15:03:24,234 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 79 89) no Hoare annotation was computed. [2018-09-20 15:03:24,234 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-20 15:03:24,234 INFO L426 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2018-09-20 15:03:24,234 INFO L426 ceAbstractionStarter]: For program point L85-1(line 85) no Hoare annotation was computed. [2018-09-20 15:03:24,234 INFO L426 ceAbstractionStarter]: For program point L83(line 83) no Hoare annotation was computed. [2018-09-20 15:03:24,234 INFO L426 ceAbstractionStarter]: For program point L85-2(line 85) no Hoare annotation was computed. [2018-09-20 15:03:24,234 INFO L426 ceAbstractionStarter]: For program point L83-1(line 83) no Hoare annotation was computed. [2018-09-20 15:03:24,235 INFO L426 ceAbstractionStarter]: For program point L83-2(line 83) no Hoare annotation was computed. [2018-09-20 15:03:24,235 INFO L426 ceAbstractionStarter]: For program point L82-1(lines 82 86) no Hoare annotation was computed. [2018-09-20 15:03:24,235 INFO L426 ceAbstractionStarter]: For program point L83-3(line 83) no Hoare annotation was computed. [2018-09-20 15:03:24,235 INFO L422 ceAbstractionStarter]: At program point L82-3(lines 82 86) the Hoare annotation is: (or (= |__signbit_double_#in~x| __signbit_double_~x) (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-09-20 15:03:24,235 INFO L426 ceAbstractionStarter]: For program point L82-4(lines 82 86) no Hoare annotation was computed. [2018-09-20 15:03:24,235 INFO L429 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 79 89) the Hoare annotation is: true [2018-09-20 15:03:24,235 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:03:24,235 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0) [2018-09-20 15:03:24,235 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:03:24,236 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:03:24,236 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 91 108) the Hoare annotation is: true [2018-09-20 15:03:24,236 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 91 108) no Hoare annotation was computed. [2018-09-20 15:03:24,236 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 91 108) no Hoare annotation was computed. [2018-09-20 15:03:24,236 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-20 15:03:24,236 INFO L426 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-09-20 15:03:24,236 INFO L422 ceAbstractionStarter]: At program point L102-1(line 102) the Hoare annotation is: (or (and (= (let ((.cse0 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= (_ +zero 11 53) main_~x~0) |main_#t~short10|) (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-09-20 15:03:24,236 INFO L426 ceAbstractionStarter]: For program point L102-2(line 102) no Hoare annotation was computed. [2018-09-20 15:03:24,237 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-09-20 15:03:24,237 INFO L422 ceAbstractionStarter]: At program point L99(line 99) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0)) (= (_ +zero 11 53) main_~x~0)) [2018-09-20 15:03:24,237 INFO L426 ceAbstractionStarter]: For program point L99-1(line 99) no Hoare annotation was computed. [2018-09-20 15:03:24,237 INFO L426 ceAbstractionStarter]: For program point L102-4(lines 102 105) no Hoare annotation was computed. [2018-09-20 15:03:24,245 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:03:24,250 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:03:24,251 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:03:24,252 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:03:24,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:03:24 BoogieIcfgContainer [2018-09-20 15:03:24,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:03:24,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:03:24,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:03:24,255 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:03:24,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:51" (3/4) ... [2018-09-20 15:03:24,259 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:03:24,267 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-09-20 15:03:24,267 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:03:24,267 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-20 15:03:24,268 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:03:24,274 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-09-20 15:03:24,275 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:03:24,275 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:03:24,308 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E300) == huge_floor) [2018-09-20 15:03:24,309 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E300) == huge_floor) [2018-09-20 15:03:24,365 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:03:24,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:03:24,367 INFO L168 Benchmark]: Toolchain (without parser) took 36170.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 951.9 MB in the beginning and 918.9 MB in the end (delta: 33.0 MB). Peak memory consumption was 242.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:24,369 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:03:24,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.97 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:24,370 INFO L168 Benchmark]: Boogie Preprocessor took 94.11 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:24,370 INFO L168 Benchmark]: RCFGBuilder took 2903.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:24,370 INFO L168 Benchmark]: TraceAbstraction took 32576.86 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.1 MB). Free memory was 1.1 GB in the beginning and 918.9 MB in the end (delta: 192.6 MB). Peak memory consumption was 247.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:24,371 INFO L168 Benchmark]: Witness Printer took 111.78 ms. Allocated memory is still 1.2 GB. Free memory was 918.9 MB in the beginning and 918.9 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-09-20 15:03:24,374 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 475.97 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 94.11 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2903.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32576.86 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.1 MB). Free memory was 1.1 GB in the beginning and 918.9 MB in the end (delta: 192.6 MB). Peak memory consumption was 247.6 MB. Max. memory is 11.5 GB. * Witness Printer took 111.78 ms. Allocated memory is still 1.2 GB. Free memory was 918.9 MB in the beginning and 918.9 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: 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: 82]: Loop Invariant [2018-09-20 15:03:24,379 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:03:24,380 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E300) == huge_floor) - InvariantResult [Line: 19]: Loop Invariant [2018-09-20 15:03:24,386 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:03:24,386 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E300) == huge_floor) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. SAFE Result, 32.4s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 23.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 466 SDtfs, 554 SDslu, 2171 SDs, 0 SdLazy, 890 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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, 7 MinimizatonAttempts, 33 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 67 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 283 NumberOfCodeBlocks, 283 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 276 ConstructedInterpolants, 76 QuantifiedInterpolants, 103305 SizeOfPredicates, 49 NumberOfNonLiveVariables, 565 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...