./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/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 7dc1721e577997f4966a61524053c01b76a6be07 ................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/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 7dc1721e577997f4966a61524053c01b76a6be07 ................................................................................................................................................................................................................................. 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 0.1.24-6b5699a [2019-11-26 02:54:49,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:54:49,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:54:49,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:54:49,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:54:49,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:54:49,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:54:49,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:54:49,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:54:49,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:54:49,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:54:49,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:54:49,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:54:49,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:54:49,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:54:49,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:54:49,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:54:49,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:54:49,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:54:49,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:54:49,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:54:49,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:54:49,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:54:49,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:54:49,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:54:49,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:54:49,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:54:49,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:54:49,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:54:49,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:54:49,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:54:49,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:54:49,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:54:49,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:54:49,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:54:49,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:54:49,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:54:49,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:54:49,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:54:49,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:54:49,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:54:49,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:54:49,916 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:54:49,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:54:49,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:54:49,917 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:54:49,918 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:54:49,918 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:54:49,918 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:54:49,918 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:54:49,919 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:54:49,919 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:54:49,920 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:54:49,920 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:54:49,920 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:54:49,920 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:54:49,921 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:54:49,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:54:49,922 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:54:49,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:54:49,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:54:49,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:54:49,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:54:49,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:54:49,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:54:49,923 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:54:49,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:54:49,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:54:49,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:54:49,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:54:49,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:54:49,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:54:49,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:54:49,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:54:49,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:54:49,925 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:54:49,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:54:49,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:54:49,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:54:49,926 INFO L138 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/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/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 -> 7dc1721e577997f4966a61524053c01b76a6be07 [2019-11-26 02:54:50,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:54:50,102 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:54:50,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:54:50,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:54:50,106 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:54:50,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/../../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-26 02:54:50,153 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data/0170fac58/6b5c061dfd534b57bc5c97706d819cde/FLAG9b9c5a424 [2019-11-26 02:54:50,560 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:54:50,561 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-26 02:54:50,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data/0170fac58/6b5c061dfd534b57bc5c97706d819cde/FLAG9b9c5a424 [2019-11-26 02:54:50,587 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data/0170fac58/6b5c061dfd534b57bc5c97706d819cde [2019-11-26 02:54:50,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:54:50,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:54:50,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:54:50,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:54:50,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:54:50,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54728782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50, skipping insertion in model container [2019-11-26 02:54:50,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:54:50,626 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:54:50,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:54:50,823 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:54:50,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:54:50,938 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:54:50,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50 WrapperNode [2019-11-26 02:54:50,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:54:50,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:54:50,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:54:50,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:54:50,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:54:50,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:54:50,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:54:50,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:54:50,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... [2019-11-26 02:54:50,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:54:50,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:54:50,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:54:50,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:54:50,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/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 [2019-11-26 02:54:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:54:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:54:51,170 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:54:51,170 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:54:51,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:51 BoogieIcfgContainer [2019-11-26 02:54:51,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:54:51,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:54:51,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:54:51,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:54:51,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:54:50" (1/3) ... [2019-11-26 02:54:51,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458c394a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:54:51, skipping insertion in model container [2019-11-26 02:54:51,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:50" (2/3) ... [2019-11-26 02:54:51,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458c394a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:54:51, skipping insertion in model container [2019-11-26 02:54:51,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:51" (3/3) ... [2019-11-26 02:54:51,179 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-26 02:54:51,187 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:54:51,193 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:54:51,200 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:54:51,219 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:54:51,219 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:54:51,220 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:54:51,220 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:54:51,220 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:54:51,220 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:54:51,220 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:54:51,221 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:54:51,232 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-26 02:54:51,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:54:51,237 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:54:51,237 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:54:51,238 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:54:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:54:51,243 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-26 02:54:51,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:54:51,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012312782] [2019-11-26 02:54:51,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:54:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:54:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:54:51,349 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:54:51,349 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:54:51,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:54:51 BoogieIcfgContainer [2019-11-26 02:54:51,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:54:51,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:54:51,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:54:51,365 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:54:51,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:51" (3/4) ... [2019-11-26 02:54:51,368 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:54:51,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:54:51,370 INFO L168 Benchmark]: Toolchain (without parser) took 777.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:51,371 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:51,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:51,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.98 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. [2019-11-26 02:54:51,372 INFO L168 Benchmark]: Boogie Preprocessor took 16.74 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. [2019-11-26 02:54:51,373 INFO L168 Benchmark]: RCFGBuilder took 185.23 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:51,374 INFO L168 Benchmark]: TraceAbstraction took 191.72 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:51,374 INFO L168 Benchmark]: Witness Printer took 3.71 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. [2019-11-26 02:54:51,377 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 344.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.98 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. * Boogie Preprocessor took 16.74 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 185.23 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 191.72 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.71 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: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:54:53,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:54:53,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:54:53,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:54:53,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:54:53,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:54:53,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:54:53,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:54:53,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:54:53,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:54:53,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:54:53,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:54:53,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:54:53,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:54:53,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:54:53,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:54:53,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:54:53,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:54:53,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:54:53,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:54:53,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:54:53,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:54:53,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:54:53,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:54:53,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:54:53,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:54:53,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:54:53,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:54:53,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:54:53,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:54:53,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:54:53,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:54:53,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:54:53,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:54:53,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:54:53,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:54:53,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:54:53,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:54:53,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:54:53,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:54:53,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:54:53,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:54:53,305 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:54:53,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:54:53,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:54:53,306 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:54:53,307 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:54:53,307 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:54:53,307 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:54:53,307 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:54:53,307 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:54:53,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:54:53,308 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:54:53,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:54:53,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:54:53,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:54:53,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:54:53,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:54:53,310 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:54:53,310 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:54:53,310 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:54:53,310 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:54:53,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:54:53,311 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:54:53,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:54:53,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:54:53,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:54:53,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:54:53,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:54:53,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:54:53,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:54:53,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:54:53,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:54:53,313 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:54:53,313 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:54:53,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:54:53,313 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:54:53,314 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/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 -> 7dc1721e577997f4966a61524053c01b76a6be07 [2019-11-26 02:54:53,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:54:53,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:54:53,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:54:53,597 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:54:53,598 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:54:53,598 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/../../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-26 02:54:53,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data/8db0e1b68/ae7312fb13d742c0bcd947e28fb4b1ac/FLAGe174429cc [2019-11-26 02:54:54,075 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:54:54,076 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-26 02:54:54,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data/8db0e1b68/ae7312fb13d742c0bcd947e28fb4b1ac/FLAGe174429cc [2019-11-26 02:54:54,094 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/data/8db0e1b68/ae7312fb13d742c0bcd947e28fb4b1ac [2019-11-26 02:54:54,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:54:54,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:54:54,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:54:54,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:54:54,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:54:54,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6708ead5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54, skipping insertion in model container [2019-11-26 02:54:54,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:54:54,129 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:54:54,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:54:54,273 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:54:54,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:54:54,299 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:54:54,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54 WrapperNode [2019-11-26 02:54:54,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:54:54,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:54:54,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:54:54,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:54:54,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:54:54,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:54:54,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:54:54,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:54:54,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... [2019-11-26 02:54:54,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:54:54,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:54:54,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:54:54,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:54:54,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/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 [2019-11-26 02:54:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:54:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:54:54,719 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:54:54,719 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:54:54,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:54 BoogieIcfgContainer [2019-11-26 02:54:54,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:54:54,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:54:54,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:54:54,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:54:54,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:54:54" (1/3) ... [2019-11-26 02:54:54,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87a925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:54:54, skipping insertion in model container [2019-11-26 02:54:54,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:54" (2/3) ... [2019-11-26 02:54:54,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87a925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:54:54, skipping insertion in model container [2019-11-26 02:54:54,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:54" (3/3) ... [2019-11-26 02:54:54,727 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-26 02:54:54,737 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:54:54,743 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:54:54,755 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:54:54,779 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:54:54,779 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:54:54,780 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:54:54,780 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:54:54,780 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:54:54,780 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:54:54,780 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:54:54,781 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:54:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-26 02:54:54,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:54:54,801 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:54:54,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:54:54,802 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:54:54,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:54:54,808 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-26 02:54:54,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:54:54,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545083006] [2019-11-26 02:54:54,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/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 [2019-11-26 02:54:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:54:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:54:54,884 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-11-26 02:54:54,885 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:54:55,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:54:55,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:54:55 BoogieIcfgContainer [2019-11-26 02:54:55,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:54:55,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:54:55,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:54:55,111 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:54:55,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:54" (3/4) ... [2019-11-26 02:54:55,113 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:54:55,144 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3b6545d2-3724-4ad7-a29d-724687c76100/bin/utaipan/witness.graphml [2019-11-26 02:54:55,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:54:55,146 INFO L168 Benchmark]: Toolchain (without parser) took 1047.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:55,146 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:55,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.60 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 949.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:55,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 949.7 MB in the beginning and 1.2 GB in the end (delta: -233.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:55,148 INFO L168 Benchmark]: Boogie Preprocessor took 32.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:55,148 INFO L168 Benchmark]: RCFGBuilder took 261.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:55,149 INFO L168 Benchmark]: TraceAbstraction took 388.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:55,149 INFO L168 Benchmark]: Witness Printer took 33.69 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. [2019-11-26 02:54:55,152 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 200.60 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 949.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 126.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 949.7 MB in the beginning and 1.2 GB in the end (delta: -233.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 388.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Witness Printer took 33.69 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] double x; [L11] x = __VERIFIER_nondet_double() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...