./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_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_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 .............................................................................................................................................................................................................................................................................................................................................................................................................. 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 04:22:12,662 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:22:12,664 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:22:12,672 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:22:12,672 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:22:12,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:22:12,673 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:22:12,675 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:22:12,676 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:22:12,676 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:22:12,677 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:22:12,678 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:22:12,678 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:22:12,679 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:22:12,680 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:22:12,681 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:22:12,681 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:22:12,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:22:12,685 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:22:12,686 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:22:12,687 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:22:12,688 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:22:12,689 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:22:12,690 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:22:12,690 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:22:12,691 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:22:12,692 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:22:12,692 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:22:12,693 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:22:12,694 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:22:12,694 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:22:12,695 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:22:12,695 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:22:12,695 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:22:12,696 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:22:12,697 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:22:12,697 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-23 04:22:12,707 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:22:12,707 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:22:12,708 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:22:12,708 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:22:12,708 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:22:12,708 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:22:12,709 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:22:12,709 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 04:22:12,709 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:22:12,709 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:22:12,709 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 04:22:12,709 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 04:22:12,709 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:22:12,710 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:22:12,710 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 04:22:12,710 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:22:12,711 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:22:12,711 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:22:12,711 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:22:12,711 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:22:12,711 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 04:22:12,711 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:22:12,711 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:22:12,712 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:22:12,712 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:22:12,712 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:22:12,712 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:22:12,712 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:22:12,712 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:22:12,712 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:22:12,713 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:22:12,713 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:22:12,713 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 04:22:12,713 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:22:12,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 04:22:12,713 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 04:22:12,713 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_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/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 -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2018-11-23 04:22:12,736 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:22:12,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:22:12,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:22:12,748 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:22:12,748 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:22:12,749 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-11-23 04:22:12,790 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/data/a86e6778d/dc33ef14b861426e83d0dae1e8cb44e3/FLAGf0f7d88b8 [2018-11-23 04:22:13,123 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:22:13,123 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-11-23 04:22:13,128 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/data/a86e6778d/dc33ef14b861426e83d0dae1e8cb44e3/FLAGf0f7d88b8 [2018-11-23 04:22:13,550 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/data/a86e6778d/dc33ef14b861426e83d0dae1e8cb44e3 [2018-11-23 04:22:13,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:22:13,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:22:13,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:22:13,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:22:13,556 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:22:13,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f1c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13, skipping insertion in model container [2018-11-23 04:22:13,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:22:13,575 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:22:13,677 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:22:13,679 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:22:13,688 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:22:13,696 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:22:13,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13 WrapperNode [2018-11-23 04:22:13,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:22:13,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:22:13,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:22:13,697 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:22:13,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:22:13,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:22:13,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:22:13,709 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:22:13,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... [2018-11-23 04:22:13,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:22:13,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:22:13,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:22:13,722 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:22:13,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/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 04:22:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:22:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:22:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:22:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:22:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:22:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:22:13,889 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:22:13,889 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 04:22:13,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:22:13 BoogieIcfgContainer [2018-11-23 04:22:13,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:22:13,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:22:13,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:22:13,893 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:22:13,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:22:13" (1/3) ... [2018-11-23 04:22:13,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253322af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:22:13, skipping insertion in model container [2018-11-23 04:22:13,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:13" (2/3) ... [2018-11-23 04:22:13,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253322af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:22:13, skipping insertion in model container [2018-11-23 04:22:13,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:22:13" (3/3) ... [2018-11-23 04:22:13,896 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-11-23 04:22:13,902 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:22:13,906 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 04:22:13,915 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 04:22:13,935 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:22:13,935 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:22:13,936 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:22:13,936 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:22:13,936 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:22:13,936 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:22:13,936 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:22:13,936 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:22:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-23 04:22:13,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 04:22:13,956 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:22:13,956 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:22:13,958 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 04:22:13,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:22:13,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165426, now seen corresponding path program 1 times [2018-11-23 04:22:13,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:22:14,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:22:14,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:22:14,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:22:14,004 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:22:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:22:14,073 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 04:22:14,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:22:14,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:22:14,075 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:22:14,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 04:22:14,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 04:22:14,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:22:14,087 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-23 04:22:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:22:14,106 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2018-11-23 04:22:14,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 04:22:14,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 04:22:14,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:22:14,114 INFO L225 Difference]: With dead ends: 34 [2018-11-23 04:22:14,114 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 04:22:14,117 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 04:22:14,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 04:22:14,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-23 04:22:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 04:22:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-23 04:22:14,143 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2018-11-23 04:22:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:22:14,143 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-23 04:22:14,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 04:22:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-23 04:22:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 04:22:14,144 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:22:14,144 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:22:14,144 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 04:22:14,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:22:14,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165371, now seen corresponding path program 1 times [2018-11-23 04:22:14,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:22:14,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:22:14,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:22:14,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:22:14,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:22:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:22:14,181 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 04:22:14,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:22:14,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 04:22:14,182 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:22:14,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:22:14,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:22:14,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:22:14,183 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2018-11-23 04:22:14,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:22:14,204 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-23 04:22:14,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:22:14,205 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-23 04:22:14,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:22:14,205 INFO L225 Difference]: With dead ends: 15 [2018-11-23 04:22:14,205 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 04:22:14,206 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 04:22:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 04:22:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-11-23 04:22:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 04:22:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-11-23 04:22:14,209 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2018-11-23 04:22:14,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:22:14,209 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-11-23 04:22:14,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:22:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-11-23 04:22:14,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 04:22:14,210 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:22:14,210 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:22:14,210 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 04:22:14,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:22:14,211 INFO L82 PathProgramCache]: Analyzing trace with hash 350544817, now seen corresponding path program 1 times [2018-11-23 04:22:14,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:22:14,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:22:14,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:22:14,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:22:14,212 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:22:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:22:14,239 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 04:22:14,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:22:14,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:22:14,239 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:22:14,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 04:22:14,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 04:22:14,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:22:14,240 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2018-11-23 04:22:14,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:22:14,254 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-11-23 04:22:14,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 04:22:14,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 04:22:14,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:22:14,255 INFO L225 Difference]: With dead ends: 13 [2018-11-23 04:22:14,255 INFO L226 Difference]: Without dead ends: 12 [2018-11-23 04:22:14,255 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 04:22:14,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-23 04:22:14,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 04:22:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 04:22:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-11-23 04:22:14,257 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2018-11-23 04:22:14,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:22:14,257 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-23 04:22:14,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 04:22:14,258 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-23 04:22:14,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 04:22:14,258 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:22:14,258 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:22:14,258 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 04:22:14,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:22:14,258 INFO L82 PathProgramCache]: Analyzing trace with hash 350546515, now seen corresponding path program 1 times [2018-11-23 04:22:14,258 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:22:14,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:22:14,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:22:14,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:22:14,260 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:22:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:22:14,274 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 04:22:14,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:22:14,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:22:14,274 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:22:14,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 04:22:14,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 04:22:14,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:22:14,275 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2018-11-23 04:22:14,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:22:14,286 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-11-23 04:22:14,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 04:22:14,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 04:22:14,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:22:14,287 INFO L225 Difference]: With dead ends: 12 [2018-11-23 04:22:14,287 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 04:22:14,287 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 04:22:14,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 04:22:14,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 04:22:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 04:22:14,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 04:22:14,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-23 04:22:14,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:22:14,288 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:22:14,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 04:22:14,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 04:22:14,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 04:22:14,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 04:22:14,328 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 04:22:14,329 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 04:22:14,329 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 04:22:14,329 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 04:22:14,329 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 04:22:14,329 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 04:22:14,329 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 04:22:14,329 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-11-23 04:22:14,329 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 04:22:14,330 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= main_~i~0 2147483647) (<= 1 main_~i~0) (<= main_~N~0 2147483647) (<= main_~j~0 2147483647)) [2018-11-23 04:22:14,330 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2018-11-23 04:22:14,330 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 23) the Hoare annotation is: (and (<= main_~i~0 2147483647) (<= main_~N~0 2147483647)) [2018-11-23 04:22:14,330 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-11-23 04:22:14,330 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-11-23 04:22:14,330 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-11-23 04:22:14,331 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 04:22:14,331 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 04:22:14,331 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 04:22:14,331 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 04:22:14,331 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-23 04:22:14,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:22:14 BoogieIcfgContainer [2018-11-23 04:22:14,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 04:22:14,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:22:14,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:22:14,341 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:22:14,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:22:13" (3/4) ... [2018-11-23 04:22:14,344 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 04:22:14,348 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 04:22:14,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 04:22:14,351 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 04:22:14,352 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 04:22:14,352 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 04:22:14,383 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_07e8dec6-8c57-4f28-a453-bee9b7f42d9b/bin-2019/utaipan/witness.graphml [2018-11-23 04:22:14,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:22:14,383 INFO L168 Benchmark]: Toolchain (without parser) took 830.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -121.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-23 04:22:14,385 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:22:14,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.92 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:22:14,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.43 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:22:14,386 INFO L168 Benchmark]: Boogie Preprocessor took 12.18 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:22:14,386 INFO L168 Benchmark]: RCFGBuilder took 167.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:22:14,386 INFO L168 Benchmark]: TraceAbstraction took 450.30 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-11-23 04:22:14,387 INFO L168 Benchmark]: Witness Printer took 42.16 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 04:22:14,389 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.92 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 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 12.43 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.18 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 167.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 450.30 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * Witness Printer took 42.16 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: 19]: Loop Invariant Derived loop invariant: ((i <= 2147483647 && 1 <= i) && N <= 2147483647) && j <= 2147483647 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i <= 2147483647 && N <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 28 SDslu, 24 SDs, 0 SdLazy, 23 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 8 NumberOfFragments, 24 HoareAnnotationTreeSize, 6 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 390 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...