./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ................................................................................................................................................................................................................................................. 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_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0141f30eebc41972a05a5b9a00ccec3818dc94e8 .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:46:53,761 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:46:53,763 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:46:53,773 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:46:53,773 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:46:53,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:46:53,775 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:46:53,777 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:46:53,778 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:46:53,779 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:46:53,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:46:53,780 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:46:53,781 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:46:53,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:46:53,782 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:46:53,783 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:46:53,783 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:46:53,785 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:46:53,787 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:46:53,788 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:46:53,789 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:46:53,790 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:46:53,792 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:46:53,792 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:46:53,793 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:46:53,793 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:46:53,794 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:46:53,795 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:46:53,796 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:46:53,797 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:46:53,797 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:46:53,798 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:46:53,798 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:46:53,798 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:46:53,799 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:46:53,800 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:46:53,800 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:46:53,809 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:46:53,810 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:46:53,810 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:46:53,810 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:46:53,811 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:46:53,811 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:46:53,811 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:46:53,812 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:46:53,812 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:46:53,812 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:46:53,812 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:46:53,812 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:46:53,813 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:46:53,813 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:46:53,813 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:46:53,813 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:46:53,813 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:46:53,814 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:46:53,814 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:46:53,814 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:46:53,814 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:46:53,814 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:46:53,815 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:46:53,815 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:46:53,815 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:46:53,815 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:46:53,815 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:46:53,816 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:46:53,816 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:46:53,816 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:46:53,816 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_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-11-28 12:46:53,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:46:53,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:46:53,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:46:53,864 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:46:53,864 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:46:53,865 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-28 12:46:53,923 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data/a34c92281/c1a6da7c0d9b4494a4d2874cf140126f/FLAGf64d19f5b [2018-11-28 12:46:54,277 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:46:54,278 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-28 12:46:54,282 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data/a34c92281/c1a6da7c0d9b4494a4d2874cf140126f/FLAGf64d19f5b [2018-11-28 12:46:54,691 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data/a34c92281/c1a6da7c0d9b4494a4d2874cf140126f [2018-11-28 12:46:54,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:46:54,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:46:54,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:46:54,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:46:54,700 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:46:54,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eee3342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54, skipping insertion in model container [2018-11-28 12:46:54,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:46:54,727 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:46:54,855 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:46:54,859 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:46:54,881 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:46:54,892 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:46:54,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54 WrapperNode [2018-11-28 12:46:54,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:46:54,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:46:54,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:46:54,893 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:46:54,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:46:54,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:46:54,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:46:54,915 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:46:54,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... [2018-11-28 12:46:54,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:46:54,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:46:54,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:46:54,979 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:46:54,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/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 [2018-11-28 12:46:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-11-28 12:46:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-11-28 12:46:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:46:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:46:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-11-28 12:46:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-11-28 12:46:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:46:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:46:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:46:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:46:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-11-28 12:46:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-11-28 12:46:55,152 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:46:55,152 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:46:55,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:46:55 BoogieIcfgContainer [2018-11-28 12:46:55,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:46:55,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:46:55,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:46:55,156 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:46:55,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:46:54" (1/3) ... [2018-11-28 12:46:55,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652d08c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:46:55, skipping insertion in model container [2018-11-28 12:46:55,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:54" (2/3) ... [2018-11-28 12:46:55,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652d08c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:46:55, skipping insertion in model container [2018-11-28 12:46:55,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:46:55" (3/3) ... [2018-11-28 12:46:55,160 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-11-28 12:46:55,170 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:46:55,178 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-28 12:46:55,196 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-28 12:46:55,227 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:46:55,227 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:46:55,228 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:46:55,228 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:46:55,228 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:46:55,228 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:46:55,228 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:46:55,228 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:46:55,229 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:46:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-28 12:46:55,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:46:55,256 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:55,256 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:46:55,259 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:55,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:55,264 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-11-28 12:46:55,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:55,267 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:55,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:55,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:55,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:46:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:46:55,357 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:46:55,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:46:55 BoogieIcfgContainer [2018-11-28 12:46:55,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:46:55,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:46:55,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:46:55,378 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:46:55,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:46:55" (3/4) ... [2018-11-28 12:46:55,382 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:46:55,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:46:55,383 INFO L168 Benchmark]: Toolchain (without parser) took 688.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:46:55,385 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:46:55,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.17 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:55,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.22 ms. Allocated memory is still 1.0 GB. Free memory is still 939.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:46:55,387 INFO L168 Benchmark]: Boogie Preprocessor took 64.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:55,388 INFO L168 Benchmark]: RCFGBuilder took 173.70 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:55,388 INFO L168 Benchmark]: TraceAbstraction took 224.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:55,389 INFO L168 Benchmark]: Witness Printer took 4.26 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. [2018-11-28 12:46:55,392 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 196.17 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 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 21.22 ms. Allocated memory is still 1.0 GB. Free memory is still 939.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 173.70 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 224.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.26 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L37] float f=__VERIFIER_nondet_float(); [L38] CALL bug(f) VAL [\old(min)=0] [L7] float modifier = (0x1.0p-23 * (1<<1)); [L8] float ulpdiff = min * modifier; VAL [\old(min)=0, min=0] [L10] COND TRUE !(ulpdiff == 0x1p-126f) VAL [\old(min)=0, min=0] [L10] __VERIFIER_error() VAL [\old(min)=0, min=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 3 error locations. UNSAFE Result, 0.1s 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=33occurred 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 0.1.23-0cd3be1 [2018-11-28 12:46:57,130 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:46:57,132 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:46:57,140 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:46:57,140 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:46:57,141 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:46:57,142 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:46:57,144 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:46:57,146 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:46:57,146 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:46:57,147 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:46:57,147 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:46:57,148 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:46:57,150 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:46:57,151 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:46:57,151 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:46:57,152 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:46:57,154 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:46:57,156 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:46:57,157 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:46:57,158 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:46:57,159 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:46:57,161 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:46:57,162 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:46:57,162 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:46:57,163 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:46:57,163 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:46:57,164 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:46:57,165 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:46:57,166 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:46:57,166 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:46:57,167 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:46:57,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:46:57,167 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:46:57,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:46:57,170 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:46:57,170 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:46:57,182 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:46:57,182 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:46:57,183 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:46:57,183 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:46:57,184 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:46:57,184 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:46:57,184 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:46:57,184 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:46:57,185 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:46:57,186 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:46:57,186 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:46:57,186 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:46:57,186 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:46:57,186 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:46:57,186 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:46:57,187 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:46:57,187 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:46:57,187 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:46:57,187 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:46:57,187 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:46:57,188 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:46:57,188 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:46:57,188 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:46:57,188 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:46:57,188 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:46:57,189 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:46:57,189 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:46:57,189 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:46:57,189 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:46:57,189 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:46:57,189 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:46:57,190 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:46:57,190 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_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-11-28 12:46:57,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:46:57,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:46:57,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:46:57,234 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:46:57,235 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:46:57,235 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-28 12:46:57,288 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data/016f5a1cc/72a7d5ee23564e7cb3f1cd47a576a07e/FLAG8648e2158 [2018-11-28 12:46:57,653 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:46:57,653 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-28 12:46:57,658 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data/016f5a1cc/72a7d5ee23564e7cb3f1cd47a576a07e/FLAG8648e2158 [2018-11-28 12:46:57,667 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/data/016f5a1cc/72a7d5ee23564e7cb3f1cd47a576a07e [2018-11-28 12:46:57,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:46:57,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:46:57,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:46:57,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:46:57,674 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:46:57,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65eea661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57, skipping insertion in model container [2018-11-28 12:46:57,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:46:57,694 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:46:57,825 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:46:57,830 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:46:57,850 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:46:57,861 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:46:57,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57 WrapperNode [2018-11-28 12:46:57,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:46:57,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:46:57,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:46:57,863 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:46:57,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:46:57,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:46:57,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:46:57,879 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:46:57,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... [2018-11-28 12:46:57,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:46:57,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:46:57,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:46:57,896 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:46:57,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/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 [2018-11-28 12:46:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-11-28 12:46:57,980 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-11-28 12:46:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:46:57,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:46:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-11-28 12:46:57,981 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-11-28 12:46:57,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:46:57,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:46:57,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:46:57,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:46:57,981 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-11-28 12:46:57,981 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-11-28 12:46:58,670 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:46:58,670 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:46:58,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:46:58 BoogieIcfgContainer [2018-11-28 12:46:58,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:46:58,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:46:58,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:46:58,673 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:46:58,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:46:57" (1/3) ... [2018-11-28 12:46:58,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dc5e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:46:58, skipping insertion in model container [2018-11-28 12:46:58,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:57" (2/3) ... [2018-11-28 12:46:58,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dc5e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:46:58, skipping insertion in model container [2018-11-28 12:46:58,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:46:58" (3/3) ... [2018-11-28 12:46:58,676 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-11-28 12:46:58,684 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:46:58,691 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-28 12:46:58,707 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-28 12:46:58,735 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:46:58,736 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:46:58,736 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:46:58,736 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:46:58,736 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:46:58,736 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:46:58,737 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:46:58,737 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:46:58,737 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:46:58,751 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-28 12:46:58,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:46:58,755 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:58,755 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:46:58,757 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:58,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:58,761 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-11-28 12:46:58,764 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:46:58,764 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/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 [2018-11-28 12:46:58,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:58,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:46:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:46:59,090 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:46:59,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:59,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:46:59,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:46:59,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:46:59,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:46:59,120 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-11-28 12:46:59,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:59,156 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-11-28 12:46:59,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:46:59,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 12:46:59,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:59,167 INFO L225 Difference]: With dead ends: 56 [2018-11-28 12:46:59,167 INFO L226 Difference]: Without dead ends: 24 [2018-11-28 12:46:59,170 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:46:59,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-28 12:46:59,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-28 12:46:59,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 12:46:59,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-11-28 12:46:59,196 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 9 [2018-11-28 12:46:59,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:59,197 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-11-28 12:46:59,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:46:59,197 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-11-28 12:46:59,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 12:46:59,198 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:59,198 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:46:59,198 INFO L423 AbstractCegarLoop]: === Iteration 2 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:59,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:59,199 INFO L82 PathProgramCache]: Analyzing trace with hash -807154991, now seen corresponding path program 1 times [2018-11-28 12:46:59,199 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:46:59,199 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 12:46:59,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:59,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:47:02,716 WARN L180 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 19 [2018-11-28 12:47:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:47:03,229 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:47:03,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:47:03,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:47:03,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:47:03,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:47:03,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:47:03,244 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 3 states. [2018-11-28 12:47:03,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:47:03,928 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-28 12:47:03,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:47:03,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-28 12:47:03,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:47:03,954 INFO L225 Difference]: With dead ends: 24 [2018-11-28 12:47:03,954 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 12:47:03,955 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:47:03,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 12:47:03,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-28 12:47:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 12:47:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-11-28 12:47:03,958 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 15 [2018-11-28 12:47:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:47:03,959 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-11-28 12:47:03,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:47:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-11-28 12:47:03,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:47:03,960 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:47:03,960 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:47:03,960 INFO L423 AbstractCegarLoop]: === Iteration 3 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:47:03,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:47:03,960 INFO L82 PathProgramCache]: Analyzing trace with hash -241350324, now seen corresponding path program 1 times [2018-11-28 12:47:03,961 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:47:03,961 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 12:47:03,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:47:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:47:04,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:47:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:47:04,439 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:47:04,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:47:04,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:47:04,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:47:04,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:47:04,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:47:04,454 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 3 states. [2018-11-28 12:47:04,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:47:04,456 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-28 12:47:04,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:47:04,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-28 12:47:04,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:47:04,456 INFO L225 Difference]: With dead ends: 22 [2018-11-28 12:47:04,457 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:47:04,457 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:47:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:47:04,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:47:04,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:47:04,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:47:04,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-28 12:47:04,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:47:04,458 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:47:04,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:47:04,458 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:47:04,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:47:04,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:47:04,496 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-28 12:47:04,497 INFO L448 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-11-28 12:47:04,497 INFO L448 ceAbstractionStarter]: For program point bugCastingEXIT(lines 26 34) no Hoare annotation was computed. [2018-11-28 12:47:04,497 INFO L448 ceAbstractionStarter]: For program point L31-3(lines 26 34) no Hoare annotation was computed. [2018-11-28 12:47:04,497 INFO L451 ceAbstractionStarter]: At program point bugCastingENTRY(lines 26 34) the Hoare annotation is: true [2018-11-28 12:47:04,497 INFO L448 ceAbstractionStarter]: For program point bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-11-28 12:47:04,497 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:47:04,497 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:47:04,497 INFO L451 ceAbstractionStarter]: At program point bugENTRY(lines 5 13) the Hoare annotation is: true [2018-11-28 12:47:04,497 INFO L448 ceAbstractionStarter]: For program point bugErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-28 12:47:04,497 INFO L448 ceAbstractionStarter]: For program point bugEXIT(lines 5 13) no Hoare annotation was computed. [2018-11-28 12:47:04,497 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-28 12:47:04,498 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-28 12:47:04,498 INFO L448 ceAbstractionStarter]: For program point L10-3(lines 5 13) no Hoare annotation was computed. [2018-11-28 12:47:04,498 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:47:04,498 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:47:04,498 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:47:04,498 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:47:04,498 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 36 47) the Hoare annotation is: true [2018-11-28 12:47:04,498 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 36 47) no Hoare annotation was computed. [2018-11-28 12:47:04,498 INFO L451 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: true [2018-11-28 12:47:04,498 INFO L448 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-11-28 12:47:04,498 INFO L451 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: true [2018-11-28 12:47:04,498 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 36 47) no Hoare annotation was computed. [2018-11-28 12:47:04,498 INFO L448 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-11-28 12:47:04,499 INFO L451 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: true [2018-11-28 12:47:04,499 INFO L448 ceAbstractionStarter]: For program point L38-1(line 38) no Hoare annotation was computed. [2018-11-28 12:47:04,499 INFO L448 ceAbstractionStarter]: For program point bugBrokenOutEXIT(lines 15 24) no Hoare annotation was computed. [2018-11-28 12:47:04,499 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-28 12:47:04,499 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-28 12:47:04,499 INFO L448 ceAbstractionStarter]: For program point bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2018-11-28 12:47:04,499 INFO L451 ceAbstractionStarter]: At program point bugBrokenOutENTRY(lines 15 24) the Hoare annotation is: true [2018-11-28 12:47:04,499 INFO L448 ceAbstractionStarter]: For program point L21-3(lines 15 24) no Hoare annotation was computed. [2018-11-28 12:47:04,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:47:04 BoogieIcfgContainer [2018-11-28 12:47:04,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:47:04,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:47:04,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:47:04,501 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:47:04,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:46:58" (3/4) ... [2018-11-28 12:47:04,504 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:47:04,508 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bugCasting [2018-11-28 12:47:04,508 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:47:04,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bug [2018-11-28 12:47:04,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:47:04,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bugBrokenOut [2018-11-28 12:47:04,511 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 12:47:04,512 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 12:47:04,512 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:47:04,545 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0042c049-4e4d-438c-b57c-9af319c6d0e6/bin-2019/uautomizer/witness.graphml [2018-11-28 12:47:04,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:47:04,545 INFO L168 Benchmark]: Toolchain (without parser) took 6875.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -77.2 MB). Peak memory consumption was 46.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:04,546 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:47:04,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.26 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 934.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:04,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.77 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:47:04,547 INFO L168 Benchmark]: Boogie Preprocessor took 16.55 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:47:04,547 INFO L168 Benchmark]: RCFGBuilder took 774.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:04,548 INFO L168 Benchmark]: TraceAbstraction took 5830.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:04,548 INFO L168 Benchmark]: Witness Printer took 43.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:04,550 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.26 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 934.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.77 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.55 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 774.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5830.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. * Witness Printer took 43.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 21]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 3 error locations. SAFE Result, 5.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 4 SDslu, 63 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 14 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 3 QuantifiedInterpolants, 1426 SizeOfPredicates, 9 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...