./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_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_0921_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 86466cf5e99320b887fae6f726f2af775c2eaef8 .................................................................................................................................................................................................................................................................................... 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_0921_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 86466cf5e99320b887fae6f726f2af775c2eaef8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:04:36,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:04:36,894 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:04:36,914 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:04:36,915 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:04:36,917 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:04:36,921 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:04:36,924 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:04:36,927 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:04:36,928 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:04:36,930 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:04:36,931 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:04:36,933 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:04:36,935 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:04:36,942 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:04:36,943 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:04:36,944 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:04:36,946 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:04:36,947 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:04:36,949 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:04:36,950 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:04:36,952 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:04:36,954 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:04:36,954 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:04:36,954 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:04:36,955 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:04:36,956 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:04:36,957 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:04:36,958 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:04:36,959 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:04:36,959 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:04:36,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:04:36,961 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:04:36,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:04:36,962 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:04:36,963 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:04:36,963 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 04:04:36,979 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:04:36,979 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:04:36,981 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:04:36,981 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:04:36,981 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:04:36,982 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:04:36,982 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:04:36,982 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 04:04:36,982 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:04:36,982 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:04:36,982 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:04:36,983 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:04:36,984 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:04:36,984 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:04:36,984 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:04:36,984 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:04:36,984 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:04:36,985 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:04:36,985 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:04:36,985 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:04:36,985 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:04:36,985 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:04:36,985 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:04:36,987 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:04:36,987 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:04:36,987 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 04:04:36,988 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:04:36,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 04:04:36,988 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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-12-31 04:04:37,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:04:37,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:04:37,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:04:37,066 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:04:37,067 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:04:37,068 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-12-31 04:04:37,123 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002ecbd42/cca0dd1e2e714ad3bad1a6f362128817/FLAG93484b05a [2018-12-31 04:04:37,603 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:04:37,604 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-12-31 04:04:37,614 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002ecbd42/cca0dd1e2e714ad3bad1a6f362128817/FLAG93484b05a [2018-12-31 04:04:37,961 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002ecbd42/cca0dd1e2e714ad3bad1a6f362128817 [2018-12-31 04:04:37,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:04:37,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:04:37,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:04:37,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:04:37,974 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:04:37,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:04:37" (1/1) ... [2018-12-31 04:04:37,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da98c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:37, skipping insertion in model container [2018-12-31 04:04:37,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:04:37" (1/1) ... [2018-12-31 04:04:37,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:04:38,014 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:04:38,286 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:04:38,295 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:04:38,350 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:04:38,377 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:04:38,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38 WrapperNode [2018-12-31 04:04:38,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:04:38,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:04:38,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:04:38,379 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:04:38,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (1/1) ... [2018-12-31 04:04:38,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (1/1) ... [2018-12-31 04:04:38,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:04:38,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:04:38,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:04:38,498 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:04:38,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (1/1) ... [2018-12-31 04:04:38,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (1/1) ... [2018-12-31 04:04:38,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (1/1) ... [2018-12-31 04:04:38,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (1/1) ... [2018-12-31 04:04:38,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (1/1) ... [2018-12-31 04:04:38,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (1/1) ... [2018-12-31 04:04:38,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (1/1) ... [2018-12-31 04:04:38,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:04:38,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:04:38,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:04:38,533 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:04:38,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (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 04:04:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:04:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-31 04:04:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 04:04:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-31 04:04:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:04:38,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:04:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 04:04:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:04:39,116 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:04:39,117 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-12-31 04:04:39,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:04:39 BoogieIcfgContainer [2018-12-31 04:04:39,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:04:39,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:04:39,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:04:39,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:04:39,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:04:37" (1/3) ... [2018-12-31 04:04:39,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77017338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:04:39, skipping insertion in model container [2018-12-31 04:04:39,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:38" (2/3) ... [2018-12-31 04:04:39,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77017338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:04:39, skipping insertion in model container [2018-12-31 04:04:39,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:04:39" (3/3) ... [2018-12-31 04:04:39,126 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-12-31 04:04:39,135 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:04:39,142 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:04:39,158 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:04:39,190 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:04:39,190 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:04:39,191 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:04:39,191 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:04:39,191 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:04:39,191 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:04:39,191 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:04:39,192 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:04:39,192 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:04:39,207 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-31 04:04:39,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 04:04:39,213 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:04:39,214 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:04:39,216 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:04:39,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:04:39,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2018-12-31 04:04:39,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:04:39,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:04:39,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:04:39,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:04:39,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:04:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:04:39,358 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 04:04:39,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:04:39,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 04:04:39,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 04:04:39,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 04:04:39,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:04:39,380 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-12-31 04:04:39,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:04:39,399 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2018-12-31 04:04:39,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 04:04:39,400 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-12-31 04:04:39,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:04:39,415 INFO L225 Difference]: With dead ends: 58 [2018-12-31 04:04:39,416 INFO L226 Difference]: Without dead ends: 27 [2018-12-31 04:04:39,419 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 04:04:39,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-31 04:04:39,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-31 04:04:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-31 04:04:39,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2018-12-31 04:04:39,456 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2018-12-31 04:04:39,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:04:39,457 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2018-12-31 04:04:39,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 04:04:39,458 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2018-12-31 04:04:39,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 04:04:39,458 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:04:39,458 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:04:39,459 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:04:39,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:04:39,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2018-12-31 04:04:39,459 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:04:39,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:04:39,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:04:39,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:04:39,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:04:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:04:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:04:39,570 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 04:04:39,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:04:39 BoogieIcfgContainer [2018-12-31 04:04:39,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:04:39,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:04:39,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:04:39,625 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:04:39,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:04:39" (3/4) ... [2018-12-31 04:04:39,634 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 04:04:39,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:04:39,635 INFO L168 Benchmark]: Toolchain (without parser) took 1669.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -101.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-31 04:04:39,639 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:04:39,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.02 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 04:04:39,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-31 04:04:39,642 INFO L168 Benchmark]: Boogie Preprocessor took 34.46 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-31 04:04:39,645 INFO L168 Benchmark]: RCFGBuilder took 585.85 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:04:39,647 INFO L168 Benchmark]: TraceAbstraction took 504.91 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-12-31 04:04:39,649 INFO L168 Benchmark]: Witness Printer took 10.23 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. [2018-12-31 04:04:39,656 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 410.02 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 118.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.46 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 585.85 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 504.91 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 10.23 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: 124]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L119] float x = 0.0f / 0.0f; [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] float res = __ieee754_logf(x); [L111] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L123] COND TRUE !isnan_float(res) [L124] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 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=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 04:04:42,024 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:04:42,026 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:04:42,037 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:04:42,038 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:04:42,039 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:04:42,040 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:04:42,042 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:04:42,044 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:04:42,045 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:04:42,047 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:04:42,047 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:04:42,048 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:04:42,049 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:04:42,050 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:04:42,051 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:04:42,052 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:04:42,055 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:04:42,057 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:04:42,058 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:04:42,060 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:04:42,061 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:04:42,064 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:04:42,064 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:04:42,064 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:04:42,066 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:04:42,067 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:04:42,068 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:04:42,069 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:04:42,070 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:04:42,070 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:04:42,071 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:04:42,071 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:04:42,072 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:04:42,073 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:04:42,074 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:04:42,074 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 04:04:42,091 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:04:42,092 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:04:42,093 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:04:42,093 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:04:42,093 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:04:42,093 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:04:42,094 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:04:42,094 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:04:42,094 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:04:42,094 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:04:42,094 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:04:42,095 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:04:42,095 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 04:04:42,095 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 04:04:42,095 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:04:42,095 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:04:42,095 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:04:42,096 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:04:42,096 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:04:42,096 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:04:42,096 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:04:42,096 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:04:42,097 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:04:42,097 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:04:42,097 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:04:42,097 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:04:42,097 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 04:04:42,098 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:04:42,098 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 04:04:42,098 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 04:04:42,098 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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-12-31 04:04:42,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:04:42,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:04:42,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:04:42,189 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:04:42,189 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:04:42,190 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-12-31 04:04:42,260 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56ffab13/97a6804a247b4aadac7497079a45c815/FLAG74ca80ea9 [2018-12-31 04:04:42,679 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:04:42,680 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-12-31 04:04:42,692 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56ffab13/97a6804a247b4aadac7497079a45c815/FLAG74ca80ea9 [2018-12-31 04:04:43,048 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56ffab13/97a6804a247b4aadac7497079a45c815 [2018-12-31 04:04:43,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:04:43,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:04:43,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:04:43,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:04:43,060 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:04:43,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb1dbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43, skipping insertion in model container [2018-12-31 04:04:43,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:04:43,098 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:04:43,347 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:04:43,355 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:04:43,409 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:04:43,437 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:04:43,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43 WrapperNode [2018-12-31 04:04:43,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:04:43,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:04:43,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:04:43,439 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:04:43,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:04:43,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:04:43,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:04:43,560 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:04:43,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... [2018-12-31 04:04:43,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:04:43,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:04:43,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:04:43,607 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:04:43,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:04:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:04:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-31 04:04:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-31 04:04:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:04:43,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:04:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-31 04:04:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-31 04:04:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:04:43,976 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:04:57,362 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:04:57,667 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:04:57,667 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-12-31 04:04:57,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:04:57 BoogieIcfgContainer [2018-12-31 04:04:57,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:04:57,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:04:57,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:04:57,672 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:04:57,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:04:43" (1/3) ... [2018-12-31 04:04:57,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153e82af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:04:57, skipping insertion in model container [2018-12-31 04:04:57,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:04:43" (2/3) ... [2018-12-31 04:04:57,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153e82af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:04:57, skipping insertion in model container [2018-12-31 04:04:57,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:04:57" (3/3) ... [2018-12-31 04:04:57,677 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-12-31 04:04:57,688 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:04:57,697 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:04:57,718 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:04:57,747 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:04:57,748 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:04:57,748 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:04:57,749 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:04:57,749 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:04:57,749 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:04:57,749 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:04:57,749 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:04:57,750 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:04:57,762 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-31 04:04:57,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 04:04:57,768 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:04:57,769 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:04:57,772 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:04:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:04:57,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2018-12-31 04:04:57,781 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:04:57,782 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 04:04:57,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:04:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:04:58,054 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:04:58,066 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 04:04:58,066 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:04:58,082 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:04:58,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 04:04:58,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 04:04:58,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 04:04:58,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:04:58,103 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-12-31 04:04:58,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:04:58,121 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2018-12-31 04:04:58,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 04:04:58,123 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-12-31 04:04:58,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:04:58,134 INFO L225 Difference]: With dead ends: 58 [2018-12-31 04:04:58,134 INFO L226 Difference]: Without dead ends: 27 [2018-12-31 04:04:58,137 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 04:04:58,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-31 04:04:58,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-31 04:04:58,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-31 04:04:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2018-12-31 04:04:58,176 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2018-12-31 04:04:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:04:58,176 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2018-12-31 04:04:58,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 04:04:58,177 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2018-12-31 04:04:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 04:04:58,177 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:04:58,177 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:04:58,178 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:04:58,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:04:58,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2018-12-31 04:04:58,179 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:04:58,179 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 04:04:58,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:04:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:04:58,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:04:58,514 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 04:04:58,514 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:04:58,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:04:58,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 04:04:58,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 04:04:58,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 04:04:58,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 04:04:58,539 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2018-12-31 04:05:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:05:01,651 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2018-12-31 04:05:01,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 04:05:01,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-12-31 04:05:01,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:05:01,781 INFO L225 Difference]: With dead ends: 37 [2018-12-31 04:05:01,782 INFO L226 Difference]: Without dead ends: 32 [2018-12-31 04:05:01,783 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 04:05:01,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-31 04:05:01,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2018-12-31 04:05:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-31 04:05:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2018-12-31 04:05:01,789 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2018-12-31 04:05:01,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:05:01,789 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-12-31 04:05:01,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 04:05:01,790 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2018-12-31 04:05:01,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-31 04:05:01,790 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:05:01,790 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:05:01,791 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:05:01,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:05:01,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2018-12-31 04:05:01,792 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:05:01,792 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 04:05:01,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:05:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:05:02,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:05:02,405 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 04:05:02,406 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:05:02,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:05:02,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-31 04:05:02,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-31 04:05:02,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-31 04:05:02,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-31 04:05:02,421 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 7 states. [2018-12-31 04:05:03,206 WARN L181 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-12-31 04:05:17,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:05:17,583 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2018-12-31 04:05:17,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 04:05:17,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-12-31 04:05:17,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:05:17,585 INFO L225 Difference]: With dead ends: 32 [2018-12-31 04:05:17,585 INFO L226 Difference]: Without dead ends: 27 [2018-12-31 04:05:17,586 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-12-31 04:05:17,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-31 04:05:17,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-31 04:05:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-31 04:05:17,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2018-12-31 04:05:17,593 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2018-12-31 04:05:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:05:17,593 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2018-12-31 04:05:17,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-31 04:05:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2018-12-31 04:05:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-31 04:05:17,597 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:05:17,597 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:05:17,597 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:05:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:05:17,598 INFO L82 PathProgramCache]: Analyzing trace with hash 933407232, now seen corresponding path program 1 times [2018-12-31 04:05:17,598 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:05:17,600 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-12-31 04:05:17,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-31 04:05:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:05:17,688 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:05:17,774 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 04:05:17,774 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:05:17,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:05:17,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 04:05:17,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 04:05:17,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 04:05:17,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-31 04:05:17,790 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand 5 states. [2018-12-31 04:05:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:05:18,058 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2018-12-31 04:05:18,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 04:05:18,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-12-31 04:05:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:05:18,059 INFO L225 Difference]: With dead ends: 27 [2018-12-31 04:05:18,059 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 04:05:18,060 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-31 04:05:18,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 04:05:18,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 04:05:18,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 04:05:18,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 04:05:18,063 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-12-31 04:05:18,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:05:18,063 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 04:05:18,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 04:05:18,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 04:05:18,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 04:05:18,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 04:05:18,238 WARN L181 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-12-31 04:05:18,323 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-12-31 04:05:18,323 INFO L448 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-12-31 04:05:18,324 INFO L444 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2018-12-31 04:05:18,324 INFO L444 ceAbstractionStarter]: At program point L106(lines 32 108) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (and (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) .cse1)) (= ULTIMATE.start___ieee754_logf_~x .cse0) (= ~zero_log~0 .cse1))) [2018-12-31 04:05:18,324 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-12-31 04:05:18,324 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-12-31 04:05:18,324 INFO L444 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_logf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) [2018-12-31 04:05:18,325 INFO L448 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2018-12-31 04:05:18,325 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-12-31 04:05:18,325 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 04:05:18,325 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 04:05:18,325 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-12-31 04:05:18,325 INFO L444 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2018-12-31 04:05:18,325 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 126) no Hoare annotation was computed. [2018-12-31 04:05:18,326 INFO L448 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2018-12-31 04:05:18,326 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-12-31 04:05:18,326 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-12-31 04:05:18,326 INFO L444 ceAbstractionStarter]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (and (= (bvadd |ULTIMATE.start_isnan_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) .cse1)) (= ULTIMATE.start___ieee754_logf_~x .cse0) (= ~zero_log~0 .cse1))) [2018-12-31 04:05:18,326 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-12-31 04:05:18,326 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-31 04:05:18,327 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-12-31 04:05:18,327 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-31 04:05:18,327 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 04:05:18,327 INFO L451 ceAbstractionStarter]: At program point L128(lines 113 129) the Hoare annotation is: true [2018-12-31 04:05:18,327 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-12-31 04:05:18,327 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-31 04:05:18,327 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2018-12-31 04:05:18,328 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-12-31 04:05:18,328 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-12-31 04:05:18,328 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-12-31 04:05:18,339 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,340 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,341 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,341 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,341 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,341 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,343 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,348 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,351 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,351 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,352 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,352 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,352 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,352 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,354 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,355 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,355 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,355 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,356 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,361 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,362 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,362 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,362 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,364 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,364 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,364 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,364 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,365 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,365 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,365 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,366 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,366 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:05:18 BoogieIcfgContainer [2018-12-31 04:05:18,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:05:18,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:05:18,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:05:18,369 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:05:18,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:04:57" (3/4) ... [2018-12-31 04:05:18,374 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 04:05:18,388 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-31 04:05:18,389 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-31 04:05:18,419 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && zero_log == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) [2018-12-31 04:05:18,420 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvadd64(\result, 4294967295bv32) == 0bv32 && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && zero_log == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) [2018-12-31 04:05:18,471 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 04:05:18,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:05:18,472 INFO L168 Benchmark]: Toolchain (without parser) took 35418.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 951.4 MB in the beginning and 996.2 MB in the end (delta: -44.9 MB). Peak memory consumption was 99.3 MB. Max. memory is 11.5 GB. [2018-12-31 04:05:18,473 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:05:18,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.12 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 04:05:18,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -204.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-31 04:05:18,474 INFO L168 Benchmark]: Boogie Preprocessor took 46.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:05:18,475 INFO L168 Benchmark]: RCFGBuilder took 14061.19 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-12-31 04:05:18,476 INFO L168 Benchmark]: TraceAbstraction took 20699.69 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: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. [2018-12-31 04:05:18,476 INFO L168 Benchmark]: Witness Printer took 102.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:05:18,480 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.12 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 121.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -204.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.25 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 14061.19 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20699.69 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: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. * Witness Printer took 102.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.2 MB 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 - 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: 124]: 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: 111]: Loop Invariant [2018-12-31 04:05:18,489 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,489 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,489 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,490 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,490 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,490 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,490 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,491 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,491 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,491 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,491 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,491 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,492 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,492 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~bvadd64(\result, 4294967295bv32) == 0bv32 && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && zero_log == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 32]: Loop Invariant [2018-12-31 04:05:18,492 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,493 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,493 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,493 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,493 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,493 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,494 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,494 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,494 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,494 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,495 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,495 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,495 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,495 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && zero_log == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2018-12-31 04:05:18,496 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,496 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,496 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:05:18,497 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && zero_log == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. SAFE Result, 20.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 18.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 80 SDslu, 129 SDs, 0 SdLazy, 70 SolverSat, 8 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 17.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 78 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 2993 SizeOfPredicates, 17 NumberOfNonLiveVariables, 170 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...