./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_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 95131fbb90a45f134b236581750b2f1a3cba4d8c ...................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_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 95131fbb90a45f134b236581750b2f1a3cba4d8c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 04:01:05,962 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:01:05,964 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:01:05,976 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:01:05,977 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:01:05,978 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:01:05,979 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:01:05,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:01:05,982 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:01:05,983 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:01:05,984 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:01:05,984 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:01:05,985 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:01:05,986 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:01:05,987 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:01:05,988 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:01:05,989 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:01:05,991 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:01:05,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:01:05,995 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:01:05,996 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:01:05,997 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:01:06,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:01:06,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:01:06,000 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:01:06,001 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:01:06,002 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:01:06,004 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:01:06,004 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:01:06,006 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:01:06,006 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:01:06,007 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:01:06,007 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:01:06,007 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:01:06,008 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:01:06,009 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:01:06,009 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 04:01:06,025 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:01:06,025 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:01:06,026 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:01:06,026 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:01:06,027 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:01:06,027 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:01:06,027 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:01:06,027 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 04:01:06,027 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:01:06,027 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:01:06,028 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:01:06,028 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:01:06,028 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:01:06,028 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:01:06,028 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:01:06,028 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:01:06,029 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:01:06,029 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:01:06,029 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:01:06,029 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:01:06,029 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:01:06,030 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:01:06,030 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:01:06,030 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:01:06,030 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:01:06,030 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 04:01:06,030 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:01:06,031 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 04:01:06,031 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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2018-12-31 04:01:06,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:01:06,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:01:06,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:01:06,096 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:01:06,097 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:01:06,098 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-12-31 04:01:06,161 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfc90b8e/c9f2f381bc864811b25369eb6e543501/FLAG1edfbd230 [2018-12-31 04:01:06,605 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:01:06,606 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-12-31 04:01:06,621 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfc90b8e/c9f2f381bc864811b25369eb6e543501/FLAG1edfbd230 [2018-12-31 04:01:06,976 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfc90b8e/c9f2f381bc864811b25369eb6e543501 [2018-12-31 04:01:06,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:01:06,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:01:06,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:01:06,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:01:06,995 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:01:06,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:01:06" (1/1) ... [2018-12-31 04:01:07,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@afc063e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:06, skipping insertion in model container [2018-12-31 04:01:07,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:01:06" (1/1) ... [2018-12-31 04:01:07,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:01:07,044 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:01:07,351 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:01:07,369 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:01:07,417 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:01:07,472 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:01:07,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07 WrapperNode [2018-12-31 04:01:07,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:01:07,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:01:07,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:01:07,475 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:01:07,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... [2018-12-31 04:01:07,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... [2018-12-31 04:01:07,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:01:07,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:01:07,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:01:07,667 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:01:07,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... [2018-12-31 04:01:07,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... [2018-12-31 04:01:07,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... [2018-12-31 04:01:07,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... [2018-12-31 04:01:07,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... [2018-12-31 04:01:07,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... [2018-12-31 04:01:07,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... [2018-12-31 04:01:07,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:01:07,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:01:07,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:01:07,709 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:01:07,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:01:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:01:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-31 04:01:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 04:01:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-31 04:01:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:01:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:01:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 04:01:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-31 04:01:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:01:08,363 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:01:08,364 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-31 04:01:08,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:01:08 BoogieIcfgContainer [2018-12-31 04:01:08,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:01:08,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:01:08,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:01:08,370 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:01:08,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:01:06" (1/3) ... [2018-12-31 04:01:08,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c47ea09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:01:08, skipping insertion in model container [2018-12-31 04:01:08,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:07" (2/3) ... [2018-12-31 04:01:08,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c47ea09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:01:08, skipping insertion in model container [2018-12-31 04:01:08,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:01:08" (3/3) ... [2018-12-31 04:01:08,375 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-12-31 04:01:08,386 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:01:08,396 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:01:08,414 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:01:08,444 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:01:08,445 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:01:08,445 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:01:08,445 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:01:08,446 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:01:08,446 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:01:08,446 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:01:08,446 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:01:08,446 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:01:08,467 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-12-31 04:01:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 04:01:08,474 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:01:08,475 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:01:08,478 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:01:08,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:01:08,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2018-12-31 04:01:08,486 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:01:08,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:01:08,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:01:08,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:01:08,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:01:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:01:08,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:01:08,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:01:08,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 04:01:08,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 04:01:08,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 04:01:08,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:01:08,671 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-12-31 04:01:08,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:01:08,692 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2018-12-31 04:01:08,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 04:01:08,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-12-31 04:01:08,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:01:08,706 INFO L225 Difference]: With dead ends: 64 [2018-12-31 04:01:08,706 INFO L226 Difference]: Without dead ends: 30 [2018-12-31 04:01:08,710 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:01:08,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-31 04:01:08,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-31 04:01:08,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-31 04:01:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2018-12-31 04:01:08,747 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2018-12-31 04:01:08,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:01:08,747 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2018-12-31 04:01:08,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 04:01:08,748 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2018-12-31 04:01:08,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-31 04:01:08,748 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:01:08,749 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:01:08,749 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:01:08,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:01:08,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2018-12-31 04:01:08,750 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:01:08,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:01:08,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:01:08,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:01:08,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:01:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:01:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:01:08,951 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 04:01:09,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:01:09 BoogieIcfgContainer [2018-12-31 04:01:09,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:01:09,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:01:09,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:01:09,009 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:01:09,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:01:08" (3/4) ... [2018-12-31 04:01:09,014 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 04:01:09,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:01:09,015 INFO L168 Benchmark]: Toolchain (without parser) took 2032.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -124.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:09,017 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:01:09,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.56 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:09,019 INFO L168 Benchmark]: Boogie Procedure Inliner took 192.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:09,020 INFO L168 Benchmark]: Boogie Preprocessor took 41.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:01:09,021 INFO L168 Benchmark]: RCFGBuilder took 655.67 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:09,021 INFO L168 Benchmark]: TraceAbstraction took 642.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:09,022 INFO L168 Benchmark]: Witness Printer took 5.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:01:09,027 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 488.56 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 192.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.81 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. * RCFGBuilder took 655.67 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 642.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.90 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: 132]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 68. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L127] float x = 0.0f / 0.0f; [L57] float w, s1, s2, z; [L58] __int32_t ix, hx, id; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (hx) = gf_u.word [L65] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L66] COND TRUE ix >= 0x50800000 VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L67] COND TRUE ((ix) > 0x7f800000L) [L68] return x + x; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] float res = atan_float(x); [L15] return x != x; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L131] COND TRUE !isnan_float(res) [L132] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 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=33occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-2e94e6a [2018-12-31 04:01:11,446 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:01:11,449 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:01:11,465 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:01:11,465 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:01:11,466 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:01:11,467 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:01:11,469 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:01:11,470 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:01:11,471 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:01:11,472 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:01:11,472 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:01:11,473 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:01:11,474 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:01:11,475 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:01:11,476 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:01:11,477 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:01:11,480 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:01:11,483 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:01:11,488 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:01:11,492 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:01:11,495 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:01:11,498 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:01:11,500 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:01:11,500 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:01:11,501 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:01:11,505 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:01:11,506 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:01:11,507 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:01:11,509 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:01:11,510 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:01:11,510 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:01:11,511 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:01:11,511 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:01:11,514 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:01:11,515 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:01:11,515 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 04:01:11,544 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:01:11,547 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:01:11,549 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:01:11,550 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:01:11,550 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:01:11,551 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:01:11,551 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:01:11,551 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:01:11,551 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:01:11,551 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:01:11,551 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:01:11,552 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:01:11,552 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 04:01:11,552 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 04:01:11,552 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:01:11,552 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:01:11,552 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:01:11,554 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:01:11,555 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:01:11,555 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:01:11,555 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:01:11,555 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:01:11,556 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:01:11,556 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:01:11,556 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:01:11,556 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:01:11,556 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 04:01:11,556 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:01:11,559 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 04:01:11,559 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 04:01:11,559 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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2018-12-31 04:01:11,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:01:11,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:01:11,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:01:11,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:01:11,622 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:01:11,623 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-12-31 04:01:11,675 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ddcfb854/b17247fb833e448ebe6d8fc6674a69bb/FLAGcdec453b8 [2018-12-31 04:01:12,092 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:01:12,093 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-12-31 04:01:12,103 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ddcfb854/b17247fb833e448ebe6d8fc6674a69bb/FLAGcdec453b8 [2018-12-31 04:01:12,483 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ddcfb854/b17247fb833e448ebe6d8fc6674a69bb [2018-12-31 04:01:12,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:01:12,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:01:12,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:01:12,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:01:12,495 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:01:12,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:12,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1089083f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12, skipping insertion in model container [2018-12-31 04:01:12,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:12,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:01:12,539 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:01:12,783 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:01:12,796 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:01:12,899 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:01:12,948 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:01:12,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12 WrapperNode [2018-12-31 04:01:12,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:01:12,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:01:12,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:01:12,950 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:01:13,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:13,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:13,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:01:13,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:01:13,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:01:13,111 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:01:13,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:13,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:13,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:13,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:13,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:13,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:13,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... [2018-12-31 04:01:13,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:01:13,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:01:13,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:01:13,173 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:01:13,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:01:13,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-31 04:01:13,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:01:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-31 04:01:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-31 04:01:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:01:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:01:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-31 04:01:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-31 04:01:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:01:13,558 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:01:13,632 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:01:14,041 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:01:22,973 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:01:22,974 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-31 04:01:22,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:01:22 BoogieIcfgContainer [2018-12-31 04:01:22,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:01:22,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:01:22,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:01:22,980 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:01:22,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:01:12" (1/3) ... [2018-12-31 04:01:22,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18036b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:01:22, skipping insertion in model container [2018-12-31 04:01:22,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:01:12" (2/3) ... [2018-12-31 04:01:22,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18036b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:01:22, skipping insertion in model container [2018-12-31 04:01:22,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:01:22" (3/3) ... [2018-12-31 04:01:22,985 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-12-31 04:01:22,996 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:01:23,005 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:01:23,023 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:01:23,054 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:01:23,055 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:01:23,055 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:01:23,055 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:01:23,055 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:01:23,055 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:01:23,055 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:01:23,056 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:01:23,056 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:01:23,069 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-12-31 04:01:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 04:01:23,076 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:01:23,077 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:01:23,080 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:01:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:01:23,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2018-12-31 04:01:23,091 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:01:23,091 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 04:01:23,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:01:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:01:23,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:01:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:01:23,280 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:01:23,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:01:23,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 04:01:23,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 04:01:23,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 04:01:23,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:01:23,313 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-12-31 04:01:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:01:23,331 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2018-12-31 04:01:23,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 04:01:23,333 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-12-31 04:01:23,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:01:23,348 INFO L225 Difference]: With dead ends: 64 [2018-12-31 04:01:23,348 INFO L226 Difference]: Without dead ends: 30 [2018-12-31 04:01:23,352 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:01:23,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-31 04:01:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-31 04:01:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-31 04:01:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2018-12-31 04:01:23,386 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2018-12-31 04:01:23,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:01:23,387 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2018-12-31 04:01:23,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 04:01:23,387 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2018-12-31 04:01:23,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-31 04:01:23,389 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:01:23,389 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:01:23,389 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:01:23,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:01:23,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2018-12-31 04:01:23,391 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:01:23,392 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-31 04:01:23,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:01:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:01:23,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:01:23,877 WARN L181 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 5 [2018-12-31 04:01:23,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:01:23,916 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:01:23,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:01:23,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-31 04:01:23,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 04:01:23,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 04:01:23,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-31 04:01:23,933 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 6 states. [2018-12-31 04:01:24,229 WARN L181 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-12-31 04:01:36,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:01:36,998 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2018-12-31 04:01:37,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 04:01:37,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-12-31 04:01:37,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:01:37,062 INFO L225 Difference]: With dead ends: 44 [2018-12-31 04:01:37,062 INFO L226 Difference]: Without dead ends: 36 [2018-12-31 04:01:37,063 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-31 04:01:37,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-31 04:01:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2018-12-31 04:01:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-31 04:01:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2018-12-31 04:01:37,069 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2018-12-31 04:01:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:01:37,070 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2018-12-31 04:01:37,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 04:01:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2018-12-31 04:01:37,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-31 04:01:37,071 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:01:37,071 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:01:37,072 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:01:37,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:01:37,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1812830160, now seen corresponding path program 1 times [2018-12-31 04:01:37,073 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:01:37,073 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-31 04:01:37,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:01:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:01:37,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:01:37,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:01:37,332 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:01:37,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:01:37,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 04:01:37,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 04:01:37,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 04:01:37,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 04:01:37,346 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 5 states. [2018-12-31 04:01:37,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:01:37,474 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2018-12-31 04:01:37,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 04:01:37,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-12-31 04:01:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:01:37,476 INFO L225 Difference]: With dead ends: 30 [2018-12-31 04:01:37,477 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 04:01:37,477 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-31 04:01:37,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 04:01:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 04:01:37,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 04:01:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 04:01:37,479 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-12-31 04:01:37,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:01:37,479 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 04:01:37,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 04:01:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 04:01:37,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 04:01:37,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 04:01:37,688 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2018-12-31 04:01:37,688 INFO L444 ceAbstractionStarter]: At program point L60-2(lines 60 64) the Hoare annotation is: (= ULTIMATE.start_atan_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-31 04:01:37,688 INFO L448 ceAbstractionStarter]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2018-12-31 04:01:37,689 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-12-31 04:01:37,689 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2018-12-31 04:01:37,689 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2018-12-31 04:01:37,689 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 04:01:37,689 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 04:01:37,689 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2018-12-31 04:01:37,689 INFO L451 ceAbstractionStarter]: At program point L136(lines 120 137) the Hoare annotation is: true [2018-12-31 04:01:37,690 INFO L444 ceAbstractionStarter]: At program point L29(lines 17 30) the Hoare annotation is: false [2018-12-31 04:01:37,690 INFO L448 ceAbstractionStarter]: For program point L112(lines 112 117) no Hoare annotation was computed. [2018-12-31 04:01:37,690 INFO L444 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= (bvadd |ULTIMATE.start_isnan_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_atan_float_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2018-12-31 04:01:37,690 INFO L448 ceAbstractionStarter]: For program point L131(lines 131 134) no Hoare annotation was computed. [2018-12-31 04:01:37,690 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-12-31 04:01:37,690 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-12-31 04:01:37,691 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2018-12-31 04:01:37,692 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2018-12-31 04:01:37,692 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 98) no Hoare annotation was computed. [2018-12-31 04:01:37,693 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 99) no Hoare annotation was computed. [2018-12-31 04:01:37,693 INFO L448 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2018-12-31 04:01:37,693 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 73) no Hoare annotation was computed. [2018-12-31 04:01:37,693 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 04:01:37,693 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-12-31 04:01:37,693 INFO L448 ceAbstractionStarter]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2018-12-31 04:01:37,693 INFO L448 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2018-12-31 04:01:37,693 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-12-31 04:01:37,694 INFO L448 ceAbstractionStarter]: For program point L116-2(line 116) no Hoare annotation was computed. [2018-12-31 04:01:37,694 INFO L444 ceAbstractionStarter]: At program point L116-3(lines 56 118) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2018-12-31 04:01:37,694 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-12-31 04:01:37,694 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2018-12-31 04:01:37,694 INFO L448 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2018-12-31 04:01:37,694 INFO L448 ceAbstractionStarter]: For program point L76(lines 76 77) no Hoare annotation was computed. [2018-12-31 04:01:37,702 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,703 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,703 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,704 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,708 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,708 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,708 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,709 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,710 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,711 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,711 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,712 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,712 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,712 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,714 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,714 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,714 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,714 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:01:37 BoogieIcfgContainer [2018-12-31 04:01:37,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:01:37,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:01:37,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:01:37,719 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:01:37,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:01:22" (3/4) ... [2018-12-31 04:01:37,724 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 04:01:37,737 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-31 04:01:37,737 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-31 04:01:37,768 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2018-12-31 04:01:37,768 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2018-12-31 04:01:37,825 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 04:01:37,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:01:37,826 INFO L168 Benchmark]: Toolchain (without parser) took 25337.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -53.1 MB). Peak memory consumption was 87.9 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:37,827 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:01:37,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:37,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 160.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -194.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:37,830 INFO L168 Benchmark]: Boogie Preprocessor took 61.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:01:37,830 INFO L168 Benchmark]: RCFGBuilder took 9801.61 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:37,831 INFO L168 Benchmark]: TraceAbstraction took 14742.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.5 MB). Peak memory consumption was 84.5 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:37,831 INFO L168 Benchmark]: Witness Printer took 106.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:01:37,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 458.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 160.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -194.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.79 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. * RCFGBuilder took 9801.61 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14742.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.5 MB). Peak memory consumption was 84.5 MB. Max. memory is 11.5 GB. * Witness Printer took 106.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. 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 ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 132]: 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: 15]: Loop Invariant [2018-12-31 04:01:37,847 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,847 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,847 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,847 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,848 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,848 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,848 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,848 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 60]: Loop Invariant [2018-12-31 04:01:37,855 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,855 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 56]: Loop Invariant [2018-12-31 04:01:37,856 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,856 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,856 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,856 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,857 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,857 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,857 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:01:37,857 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. SAFE Result, 14.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 13.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 78 SDtfs, 31 SDslu, 104 SDs, 0 SdLazy, 40 SolverSat, 2 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 12.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 52 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 2 QuantifiedInterpolants, 1435 SizeOfPredicates, 13 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...