./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_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_0831_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 14218179970cdda4c2f749c75b7f78aa74dcc86b ..................................................................................................................................................................................................................................................................................................... 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_0831_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 14218179970cdda4c2f749c75b7f78aa74dcc86b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:03:19,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:03:19,816 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:03:19,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:03:19,829 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:03:19,830 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:03:19,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:03:19,841 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:03:19,843 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:03:19,844 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:03:19,845 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:03:19,845 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:03:19,846 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:03:19,847 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:03:19,849 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:03:19,850 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:03:19,851 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:03:19,853 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:03:19,855 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:03:19,857 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:03:19,858 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:03:19,860 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:03:19,862 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:03:19,863 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:03:19,863 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:03:19,864 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:03:19,865 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:03:19,866 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:03:19,867 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:03:19,868 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:03:19,868 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:03:19,869 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:03:19,869 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:03:19,870 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:03:19,871 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:03:19,872 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:03:19,872 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 04:03:19,888 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:03:19,888 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:03:19,889 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:03:19,890 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:03:19,890 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:03:19,891 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:03:19,891 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:03:19,891 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 04:03:19,891 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:03:19,891 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:03:19,892 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:03:19,892 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:03:19,892 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:03:19,892 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:03:19,892 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:03:19,892 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:03:19,894 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:03:19,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:03:19,895 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:03:19,895 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:03:19,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:03:19,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:03:19,896 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:03:19,897 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:03:19,897 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:03:19,897 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 04:03:19,897 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:03:19,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 04:03:19,898 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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2018-12-31 04:03:19,937 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:03:19,951 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:03:19,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:03:19,957 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:03:19,957 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:03:19,958 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_true-unreach-call.c [2018-12-31 04:03:20,021 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09ed6c37/3de6b46254db4ecf815791f15a0c11bc/FLAGe9e3257fc [2018-12-31 04:03:20,485 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:03:20,486 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_true-unreach-call.c [2018-12-31 04:03:20,492 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09ed6c37/3de6b46254db4ecf815791f15a0c11bc/FLAGe9e3257fc [2018-12-31 04:03:20,848 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09ed6c37/3de6b46254db4ecf815791f15a0c11bc [2018-12-31 04:03:20,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:03:20,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:03:20,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:03:20,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:03:20,859 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:03:20,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:03:20" (1/1) ... [2018-12-31 04:03:20,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16566cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:20, skipping insertion in model container [2018-12-31 04:03:20,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:03:20" (1/1) ... [2018-12-31 04:03:20,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:03:20,904 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:03:21,197 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:03:21,213 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:03:21,277 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:03:21,303 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:03:21,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21 WrapperNode [2018-12-31 04:03:21,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:03:21,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:03:21,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:03:21,305 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:03:21,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (1/1) ... [2018-12-31 04:03:21,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (1/1) ... [2018-12-31 04:03:21,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:03:21,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:03:21,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:03:21,422 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:03:21,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (1/1) ... [2018-12-31 04:03:21,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (1/1) ... [2018-12-31 04:03:21,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (1/1) ... [2018-12-31 04:03:21,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (1/1) ... [2018-12-31 04:03:21,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (1/1) ... [2018-12-31 04:03:21,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (1/1) ... [2018-12-31 04:03:21,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (1/1) ... [2018-12-31 04:03:21,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:03:21,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:03:21,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:03:21,479 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:03:21,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (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 04:03:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:03:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 04:03:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-31 04:03:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-31 04:03:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:03:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:03:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 04:03:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-31 04:03:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:03:22,132 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:03:22,133 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-12-31 04:03:22,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:03:22 BoogieIcfgContainer [2018-12-31 04:03:22,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:03:22,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:03:22,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:03:22,137 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:03:22,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:03:20" (1/3) ... [2018-12-31 04:03:22,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae8dd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:03:22, skipping insertion in model container [2018-12-31 04:03:22,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:21" (2/3) ... [2018-12-31 04:03:22,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae8dd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:03:22, skipping insertion in model container [2018-12-31 04:03:22,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:03:22" (3/3) ... [2018-12-31 04:03:22,141 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831_true-unreach-call.c [2018-12-31 04:03:22,151 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:03:22,161 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:03:22,180 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:03:22,212 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:03:22,213 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:03:22,213 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:03:22,213 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:03:22,213 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:03:22,213 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:03:22,214 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:03:22,214 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:03:22,214 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:03:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-12-31 04:03:22,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 04:03:22,235 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:03:22,236 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:03:22,238 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:03:22,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:03:22,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2018-12-31 04:03:22,246 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:03:22,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:03:22,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:03:22,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:03:22,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:03:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:03:22,398 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 04:03:22,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:03:22,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 04:03:22,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 04:03:22,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 04:03:22,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:03:22,419 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-12-31 04:03:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:03:22,439 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2018-12-31 04:03:22,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 04:03:22,441 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-12-31 04:03:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:03:22,451 INFO L225 Difference]: With dead ends: 72 [2018-12-31 04:03:22,451 INFO L226 Difference]: Without dead ends: 34 [2018-12-31 04:03:22,454 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 04:03:22,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-31 04:03:22,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-31 04:03:22,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-31 04:03:22,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2018-12-31 04:03:22,493 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2018-12-31 04:03:22,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:03:22,494 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2018-12-31 04:03:22,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 04:03:22,494 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2018-12-31 04:03:22,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 04:03:22,495 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:03:22,495 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:03:22,495 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:03:22,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:03:22,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2018-12-31 04:03:22,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:03:22,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:03:22,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:03:22,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:03:22,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:03:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:03:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:03:22,638 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 04:03:22,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:03:22 BoogieIcfgContainer [2018-12-31 04:03:22,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:03:22,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:03:22,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:03:22,700 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:03:22,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:03:22" (3/4) ... [2018-12-31 04:03:22,706 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 04:03:22,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:03:22,708 INFO L168 Benchmark]: Toolchain (without parser) took 1855.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -129.1 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:22,712 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:03:22,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 449.38 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 931.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:22,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:22,717 INFO L168 Benchmark]: Boogie Preprocessor took 57.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:03:22,718 INFO L168 Benchmark]: RCFGBuilder took 654.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:22,720 INFO L168 Benchmark]: TraceAbstraction took 562.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:22,721 INFO L168 Benchmark]: Witness Printer took 7.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:03:22,729 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 449.38 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 931.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 116.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 654.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 562.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L116] float x = 0.0f / 0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float res = __ieee754_expf(x); [L13] return x != x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] COND TRUE !isnan_float(res) [L121] __VERIFIER_error() VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 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=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 04:03:25,101 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:03:25,105 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:03:25,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:03:25,128 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:03:25,129 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:03:25,130 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:03:25,132 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:03:25,134 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:03:25,135 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:03:25,136 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:03:25,136 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:03:25,137 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:03:25,138 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:03:25,140 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:03:25,140 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:03:25,141 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:03:25,143 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:03:25,146 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:03:25,147 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:03:25,148 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:03:25,150 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:03:25,152 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:03:25,153 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:03:25,153 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:03:25,154 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:03:25,155 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:03:25,156 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:03:25,157 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:03:25,158 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:03:25,158 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:03:25,159 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:03:25,160 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:03:25,160 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:03:25,161 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:03:25,162 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:03:25,162 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 04:03:25,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:03:25,182 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:03:25,183 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:03:25,183 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:03:25,183 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:03:25,183 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:03:25,186 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:03:25,186 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:03:25,186 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:03:25,186 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:03:25,186 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:03:25,186 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:03:25,188 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 04:03:25,188 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 04:03:25,188 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:03:25,188 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:03:25,188 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:03:25,188 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:03:25,189 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:03:25,189 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:03:25,189 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:03:25,189 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:03:25,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:03:25,189 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:03:25,192 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:03:25,192 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:03:25,192 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 04:03:25,193 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:03:25,193 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 04:03:25,193 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 04:03:25,193 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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2018-12-31 04:03:25,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:03:25,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:03:25,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:03:25,286 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:03:25,287 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:03:25,287 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_true-unreach-call.c [2018-12-31 04:03:25,338 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af1f2ed2/4544b4cc40dc4ce69b2e43111725f676/FLAG43cb4a253 [2018-12-31 04:03:25,793 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:03:25,794 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_true-unreach-call.c [2018-12-31 04:03:25,803 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af1f2ed2/4544b4cc40dc4ce69b2e43111725f676/FLAG43cb4a253 [2018-12-31 04:03:26,141 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af1f2ed2/4544b4cc40dc4ce69b2e43111725f676 [2018-12-31 04:03:26,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:03:26,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:03:26,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:03:26,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:03:26,151 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:03:26,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30eba4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26, skipping insertion in model container [2018-12-31 04:03:26,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:03:26,190 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:03:26,492 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:03:26,505 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:03:26,577 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:03:26,617 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:03:26,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26 WrapperNode [2018-12-31 04:03:26,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:03:26,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:03:26,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:03:26,619 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:03:26,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:03:26,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:03:26,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:03:26,768 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:03:26,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (1/1) ... [2018-12-31 04:03:26,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:03:26,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:03:26,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:03:26,820 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:03:26,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (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 04:03:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-31 04:03:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:03:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-31 04:03:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-31 04:03:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:03:26,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:03:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-31 04:03:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-31 04:03:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:03:27,185 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:03:27,233 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:03:35,686 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:03:35,762 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:03:35,893 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:03:35,893 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-12-31 04:03:35,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:03:35 BoogieIcfgContainer [2018-12-31 04:03:35,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:03:35,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:03:35,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:03:35,899 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:03:35,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:03:26" (1/3) ... [2018-12-31 04:03:35,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7794f00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:03:35, skipping insertion in model container [2018-12-31 04:03:35,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:03:26" (2/3) ... [2018-12-31 04:03:35,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7794f00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:03:35, skipping insertion in model container [2018-12-31 04:03:35,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:03:35" (3/3) ... [2018-12-31 04:03:35,904 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831_true-unreach-call.c [2018-12-31 04:03:35,915 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:03:35,924 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:03:35,944 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:03:35,987 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:03:35,988 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:03:35,988 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:03:35,988 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:03:35,988 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:03:35,989 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:03:35,989 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:03:35,989 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:03:35,989 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:03:36,007 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-12-31 04:03:36,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 04:03:36,014 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:03:36,015 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:03:36,017 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:03:36,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:03:36,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2018-12-31 04:03:36,028 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:03:36,029 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) [2018-12-31 04:03:36,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 04:03:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:03:36,137 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:03:36,151 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 04:03:36,151 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:03:36,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:03:36,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 04:03:36,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 04:03:36,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 04:03:36,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:03:36,183 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-12-31 04:03:36,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:03:36,202 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2018-12-31 04:03:36,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 04:03:36,204 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-12-31 04:03:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:03:36,216 INFO L225 Difference]: With dead ends: 72 [2018-12-31 04:03:36,217 INFO L226 Difference]: Without dead ends: 34 [2018-12-31 04:03:36,220 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 04:03:36,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-31 04:03:36,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-31 04:03:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-31 04:03:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2018-12-31 04:03:36,262 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2018-12-31 04:03:36,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:03:36,262 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2018-12-31 04:03:36,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 04:03:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2018-12-31 04:03:36,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 04:03:36,263 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:03:36,263 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:03:36,263 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:03:36,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:03:36,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2018-12-31 04:03:36,265 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:03:36,265 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 04:03:36,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:03:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:03:36,363 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:03:36,730 WARN L181 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 5 [2018-12-31 04:03:36,854 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 04:03:36,854 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:03:36,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:03:36,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-31 04:03:36,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 04:03:36,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 04:03:36,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-31 04:03:36,872 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 6 states. [2018-12-31 04:03:47,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:03:47,287 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-12-31 04:03:47,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 04:03:47,288 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-12-31 04:03:47,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:03:47,290 INFO L225 Difference]: With dead ends: 49 [2018-12-31 04:03:47,290 INFO L226 Difference]: Without dead ends: 41 [2018-12-31 04:03:47,291 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-31 04:03:47,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-31 04:03:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2018-12-31 04:03:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-31 04:03:47,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-12-31 04:03:47,298 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2018-12-31 04:03:47,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:03:47,298 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-12-31 04:03:47,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 04:03:47,298 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-12-31 04:03:47,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-31 04:03:47,299 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:03:47,299 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:03:47,300 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:03:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:03:47,300 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2018-12-31 04:03:47,301 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:03:47,301 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) [2018-12-31 04:03:47,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-31 04:03:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:03:47,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:03:47,528 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 04:03:47,529 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:03:47,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:03:47,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 04:03:47,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 04:03:47,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 04:03:47,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-31 04:03:47,542 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 5 states. [2018-12-31 04:03:47,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:03:47,608 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2018-12-31 04:03:47,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 04:03:47,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-12-31 04:03:47,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:03:47,609 INFO L225 Difference]: With dead ends: 34 [2018-12-31 04:03:47,609 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 04:03:47,610 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-31 04:03:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 04:03:47,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 04:03:47,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 04:03:47,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 04:03:47,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-12-31 04:03:47,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:03:47,611 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 04:03:47,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 04:03:47,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 04:03:47,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 04:03:47,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 04:03:47,834 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-31 04:03:47,834 INFO L448 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-12-31 04:03:47,835 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-12-31 04:03:47,835 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2018-12-31 04:03:47,835 INFO L448 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2018-12-31 04:03:47,835 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 04:03:47,835 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 04:03:47,835 INFO L448 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-12-31 04:03:47,835 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-12-31 04:03:47,836 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-12-31 04:03:47,836 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-12-31 04:03:47,836 INFO L448 ceAbstractionStarter]: For program point L120(lines 120 123) no Hoare annotation was computed. [2018-12-31 04:03:47,836 INFO L444 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (bvadd |ULTIMATE.start_isnan_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start___ieee754_expf_~x .cse0))) [2018-12-31 04:03:47,837 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-12-31 04:03:47,837 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-31 04:03:47,837 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-12-31 04:03:47,837 INFO L448 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-12-31 04:03:47,837 INFO L444 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2018-12-31 04:03:47,837 INFO L448 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-12-31 04:03:47,837 INFO L448 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2018-12-31 04:03:47,838 INFO L448 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2018-12-31 04:03:47,838 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-12-31 04:03:47,838 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-12-31 04:03:47,838 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-12-31 04:03:47,839 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-12-31 04:03:47,839 INFO L444 ceAbstractionStarter]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start___ieee754_expf_~x .cse0))) [2018-12-31 04:03:47,839 INFO L448 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-12-31 04:03:47,839 INFO L444 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (= ULTIMATE.start___ieee754_expf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-31 04:03:47,839 INFO L448 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2018-12-31 04:03:47,839 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 04:03:47,839 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-12-31 04:03:47,841 INFO L451 ceAbstractionStarter]: At program point L125(lines 111 126) the Hoare annotation is: true [2018-12-31 04:03:47,841 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-12-31 04:03:47,841 INFO L448 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-12-31 04:03:47,841 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-12-31 04:03:47,841 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-12-31 04:03:47,841 INFO L444 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2018-12-31 04:03:47,856 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,857 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,857 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,858 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,860 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,860 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,860 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,861 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,862 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,862 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,864 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,864 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,864 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,864 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,865 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,865 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,865 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,867 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:47,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:03:47 BoogieIcfgContainer [2018-12-31 04:03:47,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:03:47,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:03:47,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:03:47,871 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:03:47,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:03:35" (3/4) ... [2018-12-31 04:03:47,876 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 04:03:47,892 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-31 04:03:47,893 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-31 04:03:47,928 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2018-12-31 04:03:47,929 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~bvadd64(\result, 4294967295bv32) == 0bv32 && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2018-12-31 04:03:47,988 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 04:03:47,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:03:47,989 INFO L168 Benchmark]: Toolchain (without parser) took 21844.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 951.3 MB in the beginning and 982.4 MB in the end (delta: -31.1 MB). Peak memory consumption was 94.2 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:47,991 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 04:03:47,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:47,992 INFO L168 Benchmark]: Boogie Procedure Inliner took 148.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:47,992 INFO L168 Benchmark]: Boogie Preprocessor took 51.93 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:47,994 INFO L168 Benchmark]: RCFGBuilder took 9074.40 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:47,995 INFO L168 Benchmark]: TraceAbstraction took 11974.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.8 MB in the end (delta: 77.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:47,995 INFO L168 Benchmark]: Witness Printer took 118.19 ms. Allocated memory is still 1.2 GB. Free memory was 995.8 MB in the beginning and 982.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 04:03:48,000 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 471.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 148.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.93 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9074.40 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11974.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.8 MB in the end (delta: 77.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 11.5 GB. * Witness Printer took 118.19 ms. Allocated memory is still 1.2 GB. Free memory was 995.8 MB in the beginning and 982.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2018-12-31 04:03:48,013 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,013 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,014 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,014 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,014 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,014 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,015 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,015 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 41]: Loop Invariant [2018-12-31 04:03:48,015 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,021 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 13]: Loop Invariant [2018-12-31 04:03:48,021 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,022 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,022 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,022 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,022 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,023 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,023 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:03:48,023 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~bvadd64(\result, 4294967295bv32) == 0bv32 && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. SAFE Result, 11.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 10.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 SDtfs, 30 SDslu, 114 SDs, 0 SdLazy, 41 SolverSat, 1 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 52 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 1083 SizeOfPredicates, 11 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...