./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 07:06:22,884 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:06:22,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:06:22,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:06:22,891 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:06:22,891 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:06:22,892 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:06:22,893 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:06:22,894 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:06:22,895 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:06:22,895 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:06:22,896 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:06:22,896 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:06:22,897 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:06:22,897 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:06:22,898 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:06:22,898 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:06:22,899 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:06:22,900 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:06:22,901 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:06:22,902 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:06:22,903 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:06:22,904 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:06:22,905 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:06:22,905 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:06:22,905 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:06:22,906 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:06:22,906 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:06:22,907 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:06:22,907 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:06:22,908 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:06:22,908 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:06:22,908 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:06:22,908 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:06:22,909 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:06:22,909 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:06:22,910 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-23 07:06:22,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:06:22,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:06:22,917 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:06:22,918 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:06:22,918 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 07:06:22,918 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 07:06:22,918 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 07:06:22,918 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 07:06:22,918 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 07:06:22,918 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 07:06:22,919 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 07:06:22,919 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 07:06:22,919 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 07:06:22,919 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:06:22,919 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 07:06:22,920 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:06:22,920 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:06:22,920 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:06:22,920 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:06:22,920 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:06:22,920 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 07:06:22,920 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:06:22,920 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:06:22,921 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:06:22,923 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:06:22,923 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:06:22,923 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:06:22,923 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:06:22,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:06:22,923 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:06:22,923 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:06:22,924 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:06:22,924 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 07:06:22,924 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:06:22,924 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:06:22,924 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 07:06:22,924 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 [2018-11-23 07:06:22,947 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:06:22,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:06:22,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:06:22,959 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:06:22,960 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:06:22,960 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c [2018-11-23 07:06:23,003 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/data/350efbf20/d719391555e54a4e8afaa03f6348bb88/FLAG7b88006da [2018-11-23 07:06:23,338 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:06:23,339 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c [2018-11-23 07:06:23,344 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/data/350efbf20/d719391555e54a4e8afaa03f6348bb88/FLAG7b88006da [2018-11-23 07:06:23,762 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/data/350efbf20/d719391555e54a4e8afaa03f6348bb88 [2018-11-23 07:06:23,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:06:23,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:06:23,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:06:23,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:06:23,768 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:06:23,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7c9d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23, skipping insertion in model container [2018-11-23 07:06:23,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:06:23,788 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:06:23,888 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:06:23,890 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:06:23,898 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:06:23,906 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:06:23,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23 WrapperNode [2018-11-23 07:06:23,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:06:23,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:06:23,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:06:23,907 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:06:23,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:06:23,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:06:23,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:06:23,919 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:06:23,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... [2018-11-23 07:06:23,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:06:23,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:06:23,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:06:23,931 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:06:23,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:06:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:06:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:06:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:06:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:06:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:06:24,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:06:24,093 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:06:24,093 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 07:06:24,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:06:24 BoogieIcfgContainer [2018-11-23 07:06:24,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:06:24,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:06:24,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:06:24,096 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:06:24,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:06:23" (1/3) ... [2018-11-23 07:06:24,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151d666f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:06:24, skipping insertion in model container [2018-11-23 07:06:24,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:06:23" (2/3) ... [2018-11-23 07:06:24,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151d666f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:06:24, skipping insertion in model container [2018-11-23 07:06:24,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:06:24" (3/3) ... [2018-11-23 07:06:24,099 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c [2018-11-23 07:06:24,104 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:06:24,109 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 07:06:24,118 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 07:06:24,138 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:06:24,138 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:06:24,138 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:06:24,138 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:06:24,138 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:06:24,138 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:06:24,138 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:06:24,139 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:06:24,151 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-23 07:06:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 07:06:24,154 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:06:24,155 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:06:24,157 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 07:06:24,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:06:24,160 INFO L82 PathProgramCache]: Analyzing trace with hash 876558283, now seen corresponding path program 1 times [2018-11-23 07:06:24,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:06:24,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:06:24,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:06:24,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:06:24,194 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:06:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:06:24,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:06:24,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:06:24,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 07:06:24,258 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:06:24,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 07:06:24,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 07:06:24,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:06:24,270 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-23 07:06:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:06:24,293 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-11-23 07:06:24,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 07:06:24,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 07:06:24,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:06:24,303 INFO L225 Difference]: With dead ends: 25 [2018-11-23 07:06:24,303 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 07:06:24,306 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:06:24,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 07:06:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-23 07:06:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 07:06:24,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-23 07:06:24,329 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2018-11-23 07:06:24,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:06:24,330 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-23 07:06:24,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 07:06:24,330 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-23 07:06:24,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 07:06:24,330 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:06:24,330 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:06:24,331 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 07:06:24,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:06:24,331 INFO L82 PathProgramCache]: Analyzing trace with hash 876558475, now seen corresponding path program 1 times [2018-11-23 07:06:24,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:06:24,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:06:24,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:06:24,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:06:24,334 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:06:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:06:24,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:06:24,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:06:24,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 07:06:24,365 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:06:24,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 07:06:24,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 07:06:24,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:06:24,367 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-11-23 07:06:24,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:06:24,384 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2018-11-23 07:06:24,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 07:06:24,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 07:06:24,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:06:24,385 INFO L225 Difference]: With dead ends: 14 [2018-11-23 07:06:24,385 INFO L226 Difference]: Without dead ends: 13 [2018-11-23 07:06:24,386 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:06:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-23 07:06:24,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-23 07:06:24,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 07:06:24,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-11-23 07:06:24,388 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2018-11-23 07:06:24,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:06:24,388 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-11-23 07:06:24,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 07:06:24,388 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-11-23 07:06:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 07:06:24,388 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:06:24,389 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:06:24,389 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 07:06:24,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:06:24,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1403503047, now seen corresponding path program 1 times [2018-11-23 07:06:24,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:06:24,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:06:24,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:06:24,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:06:24,391 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:06:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:06:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:06:24,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:06:24,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 07:06:24,411 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:06:24,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 07:06:24,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 07:06:24,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:06:24,412 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2018-11-23 07:06:24,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:06:24,424 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-11-23 07:06:24,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 07:06:24,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 07:06:24,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:06:24,424 INFO L225 Difference]: With dead ends: 13 [2018-11-23 07:06:24,424 INFO L226 Difference]: Without dead ends: 12 [2018-11-23 07:06:24,425 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:06:24,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-23 07:06:24,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 07:06:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 07:06:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-11-23 07:06:24,427 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2018-11-23 07:06:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:06:24,427 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-23 07:06:24,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 07:06:24,427 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-23 07:06:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 07:06:24,427 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:06:24,427 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:06:24,428 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 07:06:24,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:06:24,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1403509005, now seen corresponding path program 1 times [2018-11-23 07:06:24,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:06:24,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:06:24,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:06:24,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:06:24,429 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:06:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:06:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:06:24,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:06:24,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 07:06:24,448 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:06:24,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 07:06:24,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 07:06:24,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:06:24,449 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2018-11-23 07:06:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:06:24,465 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-11-23 07:06:24,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 07:06:24,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 07:06:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:06:24,466 INFO L225 Difference]: With dead ends: 13 [2018-11-23 07:06:24,466 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:06:24,466 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:06:24,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:06:24,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:06:24,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:06:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:06:24,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-23 07:06:24,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:06:24,467 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:06:24,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 07:06:24,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:06:24,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:06:24,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 07:06:24,487 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 07:06:24,487 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:06:24,487 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:06:24,487 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 07:06:24,488 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:06:24,488 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:06:24,488 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 27) no Hoare annotation was computed. [2018-11-23 07:06:24,488 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-23 07:06:24,488 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-23 07:06:24,488 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 24) no Hoare annotation was computed. [2018-11-23 07:06:24,488 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= main_~y~0 2147483647)) [2018-11-23 07:06:24,488 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-23 07:06:24,488 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 27) no Hoare annotation was computed. [2018-11-23 07:06:24,489 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 07:06:24,489 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 14 27) the Hoare annotation is: true [2018-11-23 07:06:24,489 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 07:06:24,489 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-23 07:06:24,489 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-23 07:06:24,489 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2018-11-23 07:06:24,489 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 07:06:24,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:06:24 BoogieIcfgContainer [2018-11-23 07:06:24,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:06:24,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:06:24,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:06:24,497 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:06:24,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:06:24" (3/4) ... [2018-11-23 07:06:24,499 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:06:24,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 07:06:24,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 07:06:24,506 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 07:06:24,507 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 07:06:24,507 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:06:24,534 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_385ec645-4d93-47e7-9071-7c4ba23d9e7a/bin-2019/utaipan/witness.graphml [2018-11-23 07:06:24,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:06:24,535 INFO L168 Benchmark]: Toolchain (without parser) took 770.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -118.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:06:24,536 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:06:24,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.11 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:06:24,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.99 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:06:24,537 INFO L168 Benchmark]: Boogie Preprocessor took 11.65 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:06:24,537 INFO L168 Benchmark]: RCFGBuilder took 163.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:06:24,537 INFO L168 Benchmark]: TraceAbstraction took 401.82 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:06:24,538 INFO L168 Benchmark]: Witness Printer took 38.01 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:06:24,539 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.11 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.99 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.65 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 163.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 401.82 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. * Witness Printer took 38.01 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 18 SDslu, 21 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 406 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...