./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.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 9ab995f7fc826665e07ee96ac8969470b0927c50 ........................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.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 9ab995f7fc826665e07ee96ac8969470b0927c50 ............................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:34:22,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:34:22,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:34:22,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:34:22,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:34:22,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:34:22,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:34:22,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:34:22,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:34:22,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:34:22,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:34:22,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:34:22,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:34:22,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:34:22,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:34:22,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:34:22,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:34:22,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:34:22,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:34:22,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:34:22,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:34:22,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:34:22,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:34:22,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:34:22,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:34:22,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:34:22,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:34:22,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:34:22,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:34:22,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:34:22,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:34:22,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:34:22,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:34:22,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:34:22,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:34:22,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:34:22,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:34:22,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:34:22,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:34:22,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:34:22,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:34:22,957 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:34:22,973 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:34:22,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:34:22,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:34:22,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:34:22,975 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:34:22,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:34:22,976 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:34:22,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:34:22,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:34:22,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:34:22,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:34:22,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:34:22,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:34:22,978 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:34:22,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:34:22,978 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:34:22,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:34:22,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:34:22,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:34:22,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:34:22,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:34:22,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:22,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:34:22,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:34:22,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:34:22,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:34:22,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:34:22,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:34:22,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-11-27 23:34:23,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:34:23,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:34:23,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:34:23,329 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:34:23,330 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:34:23,330 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-27 23:34:23,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2f43c0e/e4cfa4a90177405ba18f4e40c7fe90fe/FLAG1fb639ddf [2019-11-27 23:34:23,914 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:34:23,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-27 23:34:23,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2f43c0e/e4cfa4a90177405ba18f4e40c7fe90fe/FLAG1fb639ddf [2019-11-27 23:34:24,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2f43c0e/e4cfa4a90177405ba18f4e40c7fe90fe [2019-11-27 23:34:24,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:34:24,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:34:24,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:24,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:34:24,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:34:24,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cf5917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24, skipping insertion in model container [2019-11-27 23:34:24,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:34:24,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:34:24,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:24,541 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:34:24,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:24,579 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:34:24,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24 WrapperNode [2019-11-27 23:34:24,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:24,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:24,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:34:24,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:34:24,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:24,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:34:24,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:34:24,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:34:24,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... [2019-11-27 23:34:24,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:34:24,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:34:24,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:34:24,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:34:24,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:34:24,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:34:24,879 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:34:24,880 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-27 23:34:24,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:24 BoogieIcfgContainer [2019-11-27 23:34:24,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:34:24,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:34:24,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:34:24,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:34:24,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:34:24" (1/3) ... [2019-11-27 23:34:24,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0ce3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:24, skipping insertion in model container [2019-11-27 23:34:24,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:24" (2/3) ... [2019-11-27 23:34:24,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0ce3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:24, skipping insertion in model container [2019-11-27 23:34:24,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:24" (3/3) ... [2019-11-27 23:34:24,889 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-11-27 23:34:24,898 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:34:24,905 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:34:24,919 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:34:24,942 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:34:24,942 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:34:24,942 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:34:24,942 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:34:24,943 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:34:24,943 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:34:24,943 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:34:24,943 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:34:24,957 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-27 23:34:24,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-27 23:34:24,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:24,964 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-27 23:34:24,965 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:24,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:24,971 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-27 23:34:24,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:34:24,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744685584] [2019-11-27 23:34:24,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:34:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:34:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:34:25,067 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:34:25,068 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:34:25,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:34:25 BoogieIcfgContainer [2019-11-27 23:34:25,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:34:25,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:34:25,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:34:25,085 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:34:25,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:24" (3/4) ... [2019-11-27 23:34:25,089 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:34:25,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:34:25,092 INFO L168 Benchmark]: Toolchain (without parser) took 792.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -126.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:25,093 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:25,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.79 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:25,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:25,096 INFO L168 Benchmark]: Boogie Preprocessor took 17.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:25,097 INFO L168 Benchmark]: RCFGBuilder took 191.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:25,098 INFO L168 Benchmark]: TraceAbstraction took 201.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:25,098 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:25,103 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 280.79 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 191.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 201.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.18 ms. Allocated memory is still 1.1 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: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9, overapproximation of someUnaryDOUBLEoperation at line 6, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L5] float f = -0x1.0p-127f; [L6] double d = -0x1.0p-127; [L7] double fp = (double)f; [L9] COND TRUE !(d == fp) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-30f4e4a [2019-11-27 23:34:27,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:34:27,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:34:27,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:34:27,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:34:27,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:34:27,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:34:27,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:34:27,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:34:27,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:34:27,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:34:27,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:34:27,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:34:27,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:34:27,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:34:27,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:34:27,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:34:27,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:34:27,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:34:27,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:34:27,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:34:27,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:34:27,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:34:27,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:34:27,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:34:27,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:34:27,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:34:27,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:34:27,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:34:27,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:34:27,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:34:27,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:34:27,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:34:27,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:34:27,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:34:27,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:34:27,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:34:27,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:34:27,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:34:27,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:34:27,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:34:27,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:34:27,167 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:34:27,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:34:27,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:34:27,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:34:27,169 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:34:27,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:34:27,170 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:34:27,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:34:27,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:34:27,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:34:27,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:34:27,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:34:27,171 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:34:27,172 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:34:27,172 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:34:27,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:34:27,172 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:34:27,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:34:27,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:34:27,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:34:27,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:34:27,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:34:27,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:27,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:34:27,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:34:27,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:34:27,175 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:34:27,176 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:34:27,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:34:27,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:34:27,176 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-11-27 23:34:27,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:34:27,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:34:27,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:34:27,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:34:27,529 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:34:27,531 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-27 23:34:27,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a5d5765/7dcdf8af5a934c51ba469299ec123822/FLAGf78a7ca4d [2019-11-27 23:34:28,023 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:34:28,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-27 23:34:28,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a5d5765/7dcdf8af5a934c51ba469299ec123822/FLAGf78a7ca4d [2019-11-27 23:34:28,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a5d5765/7dcdf8af5a934c51ba469299ec123822 [2019-11-27 23:34:28,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:34:28,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:34:28,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:28,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:34:28,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:34:28,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e44d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28, skipping insertion in model container [2019-11-27 23:34:28,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:34:28,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:34:28,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:28,707 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:34:28,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:28,757 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:34:28,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28 WrapperNode [2019-11-27 23:34:28,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:28,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:28,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:34:28,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:34:28,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:28,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:34:28,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:34:28,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:34:28,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (1/1) ... [2019-11-27 23:34:28,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:34:28,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:34:28,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:34:28,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:34:28,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (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 [2019-11-27 23:34:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:34:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:34:29,147 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:34:29,147 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-27 23:34:29,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:29 BoogieIcfgContainer [2019-11-27 23:34:29,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:34:29,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:34:29,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:34:29,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:34:29,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:34:28" (1/3) ... [2019-11-27 23:34:29,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cc7100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:29, skipping insertion in model container [2019-11-27 23:34:29,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:28" (2/3) ... [2019-11-27 23:34:29,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cc7100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:29, skipping insertion in model container [2019-11-27 23:34:29,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:29" (3/3) ... [2019-11-27 23:34:29,157 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-11-27 23:34:29,167 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:34:29,174 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:34:29,187 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:34:29,210 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:34:29,211 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:34:29,211 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:34:29,211 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:34:29,211 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:34:29,211 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:34:29,212 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:34:29,212 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:34:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-27 23:34:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-27 23:34:29,232 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:29,233 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-27 23:34:29,234 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:29,240 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-27 23:34:29,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:29,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659799754] [2019-11-27 23:34:29,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:34:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:29,302 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-27 23:34:29,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:29,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:29,409 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:29,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659799754] [2019-11-27 23:34:29,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:29,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-27 23:34:29,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891432182] [2019-11-27 23:34:29,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:34:29,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:29,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:34:29,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:29,476 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-27 23:34:29,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:29,503 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-27 23:34:29,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:34:29,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-27 23:34:29,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:29,512 INFO L225 Difference]: With dead ends: 13 [2019-11-27 23:34:29,513 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:34:29,518 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:34:29,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:34:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:34:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:34:29,542 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-27 23:34:29,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:29,543 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:34:29,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:34:29,544 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:34:29,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:34:29,757 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:34:29,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:34:29,805 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:34:29,806 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:34:29,806 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:34:29,806 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:34:29,807 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-27 23:34:29,807 INFO L242 CegarLoopResult]: At program point L11(lines 3 12) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (and (= (fp.neg ((_ to_fp 11 53) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0))) ULTIMATE.start_main_~d~0) (= ((_ to_fp 11 53) currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0)))) ULTIMATE.start_main_~fp~0))) [2019-11-27 23:34:29,808 INFO L246 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2019-11-27 23:34:29,808 INFO L246 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-11-27 23:34:29,808 INFO L246 CegarLoopResult]: For program point L9-3(line 9) no Hoare annotation was computed. [2019-11-27 23:34:29,818 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,826 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,826 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,826 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:34:29 BoogieIcfgContainer [2019-11-27 23:34:29,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:34:29,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:34:29,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:34:29,831 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:34:29,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:29" (3/4) ... [2019-11-27 23:34:29,835 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:34:29,847 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-27 23:34:29,847 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 23:34:29,848 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:34:29,878 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) == d && ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728))) == fp) [2019-11-27 23:34:29,890 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:34:29,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:34:29,893 INFO L168 Benchmark]: Toolchain (without parser) took 1483.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -118.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:29,894 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:29,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.78 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:29,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:29,896 INFO L168 Benchmark]: Boogie Preprocessor took 33.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:29,897 INFO L168 Benchmark]: RCFGBuilder took 242.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:29,898 INFO L168 Benchmark]: TraceAbstraction took 679.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:29,899 INFO L168 Benchmark]: Witness Printer took 60.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:29,903 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 348.78 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 112.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 242.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 679.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Witness Printer took 60.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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: 3]: Loop Invariant [2019-11-27 23:34:29,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:29,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) == d && ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728))) == fp) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 69 SizeOfPredicates, 5 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...