./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b1f703b8c1a340e028de77080ca419d81a34cd6 ................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b1f703b8c1a340e028de77080ca419d81a34cd6 .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:40:42,873 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:40:42,874 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:40:42,880 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:40:42,881 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:40:42,881 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:40:42,882 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:40:42,884 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:40:42,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:40:42,885 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:40:42,886 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:40:42,886 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:40:42,887 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:40:42,887 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:40:42,888 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:40:42,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:40:42,889 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:40:42,891 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:40:42,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:40:42,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:40:42,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:40:42,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:40:42,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:40:42,896 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:40:42,896 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:40:42,897 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:40:42,897 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:40:42,898 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:40:42,899 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:40:42,899 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:40:42,899 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:40:42,900 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:40:42,900 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:40:42,900 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:40:42,901 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:40:42,901 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:40:42,901 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:40:42,908 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:40:42,908 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:40:42,909 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:40:42,909 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:40:42,910 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:40:42,910 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:40:42,910 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:40:42,910 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:40:42,910 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:40:42,910 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:40:42,910 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:40:42,910 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:40:42,911 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:40:42,911 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:40:42,911 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:40:42,911 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:40:42,912 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:40:42,912 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:40:42,912 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:40:42,912 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:40:42,912 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:40:42,912 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:40:42,912 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:40:42,912 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:40:42,913 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:40:42,913 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:40:42,913 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:40:42,913 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:40:42,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:40:42,913 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:40:42,913 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:40:42,914 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:40:42,914 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:40:42,914 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:40:42,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:40:42,914 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:40:42,914 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan 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 -> Taipan 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 -> 2b1f703b8c1a340e028de77080ca419d81a34cd6 [2018-12-09 19:40:42,937 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:40:42,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:40:42,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:40:42,947 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:40:42,948 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:40:42,948 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-12-09 19:40:42,988 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data/457c7163b/752adf9ab41c4410a8ae4e98b1822b9b/FLAGf7c409882 [2018-12-09 19:40:43,404 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:40:43,404 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/sv-benchmarks/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-12-09 19:40:43,408 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data/457c7163b/752adf9ab41c4410a8ae4e98b1822b9b/FLAGf7c409882 [2018-12-09 19:40:43,415 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data/457c7163b/752adf9ab41c4410a8ae4e98b1822b9b [2018-12-09 19:40:43,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:40:43,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:40:43,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:40:43,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:40:43,420 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:40:43,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343f3083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43, skipping insertion in model container [2018-12-09 19:40:43,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:40:43,435 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:40:43,514 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:40:43,516 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:40:43,523 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:40:43,531 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:40:43,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43 WrapperNode [2018-12-09 19:40:43,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:40:43,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:40:43,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:40:43,531 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:40:43,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:40:43,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:40:43,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:40:43,543 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:40:43,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... [2018-12-09 19:40:43,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:40:43,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:40:43,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:40:43,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:40:43,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/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 [2018-12-09 19:40:43,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:40:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:40:43,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:40:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:40:43,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:40:43,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:40:43,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 19:40:43,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 19:40:43,685 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:40:43,685 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 19:40:43,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:40:43 BoogieIcfgContainer [2018-12-09 19:40:43,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:40:43,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:40:43,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:40:43,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:40:43,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:40:43" (1/3) ... [2018-12-09 19:40:43,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8952b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:40:43, skipping insertion in model container [2018-12-09 19:40:43,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:43" (2/3) ... [2018-12-09 19:40:43,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8952b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:40:43, skipping insertion in model container [2018-12-09 19:40:43,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:40:43" (3/3) ... [2018-12-09 19:40:43,690 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_false-unreach-call_true-termination.c [2018-12-09 19:40:43,696 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:40:43,700 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:40:43,709 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:40:43,728 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:40:43,728 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:40:43,728 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:40:43,728 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:40:43,728 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:40:43,728 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:40:43,728 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:40:43,728 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:40:43,738 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-09 19:40:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:40:43,742 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:40:43,742 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:40:43,743 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:40:43,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:40:43,747 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-12-09 19:40:43,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:40:43,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:40:43,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:40:43,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:40:43,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:40:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:40:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:40:43,808 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:40:43,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:40:43 BoogieIcfgContainer [2018-12-09 19:40:43,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:40:43,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:40:43,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:40:43,822 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:40:43,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:40:43" (3/4) ... [2018-12-09 19:40:43,825 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:40:43,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:40:43,826 INFO L168 Benchmark]: Toolchain (without parser) took 408.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -124.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:43,827 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:43,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 112.89 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:43,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.86 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:43,828 INFO L168 Benchmark]: Boogie Preprocessor took 10.58 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:43,828 INFO L168 Benchmark]: RCFGBuilder took 131.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:43,829 INFO L168 Benchmark]: TraceAbstraction took 136.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:43,829 INFO L168 Benchmark]: Witness Printer took 3.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:43,831 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 112.89 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.86 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.58 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 131.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 136.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: 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. Possible FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:40:45,160 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:40:45,161 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:40:45,167 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:40:45,167 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:40:45,168 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:40:45,168 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:40:45,169 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:40:45,170 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:40:45,171 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:40:45,172 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:40:45,172 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:40:45,172 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:40:45,173 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:40:45,173 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:40:45,174 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:40:45,174 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:40:45,175 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:40:45,176 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:40:45,177 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:40:45,178 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:40:45,178 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:40:45,180 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:40:45,180 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:40:45,180 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:40:45,181 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:40:45,181 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:40:45,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:40:45,182 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:40:45,183 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:40:45,183 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:40:45,183 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:40:45,183 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:40:45,183 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:40:45,184 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:40:45,184 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:40:45,184 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:40:45,194 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:40:45,194 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:40:45,195 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:40:45,195 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:40:45,195 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:40:45,195 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:40:45,196 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:40:45,196 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:40:45,196 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:40:45,196 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:40:45,197 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:40:45,197 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:40:45,197 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:40:45,197 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:40:45,197 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:40:45,197 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:40:45,198 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:40:45,198 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:40:45,198 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:40:45,198 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:40:45,198 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:40:45,198 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:40:45,198 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:40:45,199 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:40:45,199 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:40:45,199 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:40:45,199 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:40:45,199 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:40:45,199 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:40:45,200 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:40:45,200 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:40:45,200 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:40:45,200 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:40:45,200 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:40:45,200 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:40:45,200 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan 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 -> Taipan 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 -> 2b1f703b8c1a340e028de77080ca419d81a34cd6 [2018-12-09 19:40:45,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:40:45,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:40:45,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:40:45,230 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:40:45,230 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:40:45,230 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-12-09 19:40:45,265 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data/9175a9d9c/f281c49ca0954158a14f7644d835a5d6/FLAGe07092dec [2018-12-09 19:40:45,602 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:40:45,602 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/sv-benchmarks/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-12-09 19:40:45,605 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data/9175a9d9c/f281c49ca0954158a14f7644d835a5d6/FLAGe07092dec [2018-12-09 19:40:45,613 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/data/9175a9d9c/f281c49ca0954158a14f7644d835a5d6 [2018-12-09 19:40:45,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:40:45,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:40:45,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:40:45,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:40:45,618 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:40:45,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63407dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45, skipping insertion in model container [2018-12-09 19:40:45,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:40:45,632 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:40:45,712 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:40:45,715 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:40:45,723 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:40:45,731 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:40:45,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45 WrapperNode [2018-12-09 19:40:45,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:40:45,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:40:45,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:40:45,732 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:40:45,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:40:45,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:40:45,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:40:45,745 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:40:45,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... [2018-12-09 19:40:45,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:40:45,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:40:45,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:40:45,758 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:40:45,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/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 [2018-12-09 19:40:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:40:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:40:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:40:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:40:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:40:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:40:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 19:40:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 19:40:45,896 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:40:45,897 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 19:40:45,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:40:45 BoogieIcfgContainer [2018-12-09 19:40:45,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:40:45,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:40:45,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:40:45,899 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:40:45,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:40:45" (1/3) ... [2018-12-09 19:40:45,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a6c284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:40:45, skipping insertion in model container [2018-12-09 19:40:45,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:40:45" (2/3) ... [2018-12-09 19:40:45,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a6c284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:40:45, skipping insertion in model container [2018-12-09 19:40:45,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:40:45" (3/3) ... [2018-12-09 19:40:45,901 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_false-unreach-call_true-termination.c [2018-12-09 19:40:45,906 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:40:45,910 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:40:45,919 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:40:45,935 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:40:45,935 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:40:45,935 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:40:45,935 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:40:45,935 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:40:45,936 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:40:45,936 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:40:45,936 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:40:45,936 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:40:45,945 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-09 19:40:45,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:40:45,949 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:40:45,949 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:40:45,950 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:40:45,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:40:45,954 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-12-09 19:40:45,956 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:40:45,956 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 19:40:45,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:40:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:40:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:40:46,009 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:40:46,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:40:46 BoogieIcfgContainer [2018-12-09 19:40:46,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:40:46,023 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:40:46,023 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:40:46,023 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:40:46,024 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:40:45" (3/4) ... [2018-12-09 19:40:46,025 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 19:40:46,048 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_41fd51c9-bbf1-41bd-a9b6-3586ab186399/bin-2019/utaipan/witness.graphml [2018-12-09 19:40:46,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:40:46,049 INFO L168 Benchmark]: Toolchain (without parser) took 434.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:46,050 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:46,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.09 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:46,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.05 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:46,051 INFO L168 Benchmark]: Boogie Preprocessor took 12.64 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:46,052 INFO L168 Benchmark]: RCFGBuilder took 138.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:46,052 INFO L168 Benchmark]: TraceAbstraction took 125.50 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:46,053 INFO L168 Benchmark]: Witness Printer took 25.30 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. [2018-12-09 19:40:46,056 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 116.09 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.05 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.64 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 138.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 125.50 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * Witness Printer took 25.30 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: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...