./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/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_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/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 0.1.23-5842f4b [2018-11-18 13:20:13,298 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:20:13,299 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:20:13,308 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:20:13,308 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:20:13,309 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:20:13,310 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:20:13,311 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:20:13,313 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:20:13,314 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:20:13,314 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:20:13,315 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:20:13,315 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:20:13,316 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:20:13,318 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:20:13,318 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:20:13,319 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:20:13,320 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:20:13,322 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:20:13,323 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:20:13,324 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:20:13,325 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:20:13,326 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:20:13,327 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:20:13,327 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:20:13,327 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:20:13,328 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:20:13,329 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:20:13,330 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:20:13,331 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:20:13,331 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:20:13,331 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:20:13,332 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:20:13,332 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:20:13,333 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:20:13,334 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:20:13,334 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 13:20:13,345 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:20:13,345 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:20:13,346 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:20:13,346 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:20:13,346 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:20:13,346 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:20:13,347 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:20:13,347 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:20:13,347 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:20:13,347 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:20:13,347 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:20:13,347 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:20:13,347 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:20:13,348 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:20:13,348 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:20:13,350 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:20:13,350 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:20:13,350 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:20:13,350 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:20:13,350 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:20:13,350 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 13:20:13,350 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:20:13,351 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:20:13,351 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:20:13,351 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:20:13,351 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:20:13,351 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:20:13,351 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:20:13,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:20:13,352 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:20:13,352 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:20:13,352 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:20:13,352 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:20:13,352 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:20:13,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:20:13,353 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:20:13,353 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_28b1c926-738f-4dbc-b5da-078aa5e715eb/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 [2018-11-18 13:20:13,383 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:20:13,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:20:13,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:20:13,395 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:20:13,395 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:20:13,395 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-11-18 13:20:13,438 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/data/9b6893b52/c681e65bbb304fd5a545df21ddb11206/FLAG77b3d6f41 [2018-11-18 13:20:13,838 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:20:13,838 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-11-18 13:20:13,842 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/data/9b6893b52/c681e65bbb304fd5a545df21ddb11206/FLAG77b3d6f41 [2018-11-18 13:20:13,853 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/data/9b6893b52/c681e65bbb304fd5a545df21ddb11206 [2018-11-18 13:20:13,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:20:13,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:20:13,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:20:13,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:20:13,861 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:20:13,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:20:13" (1/1) ... [2018-11-18 13:20:13,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fd3e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:13, skipping insertion in model container [2018-11-18 13:20:13,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:20:13" (1/1) ... [2018-11-18 13:20:13,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:20:13,881 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:20:13,986 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:20:13,989 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:20:13,997 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:20:14,005 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:20:14,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14 WrapperNode [2018-11-18 13:20:14,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:20:14,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:20:14,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:20:14,007 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:20:14,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... [2018-11-18 13:20:14,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... [2018-11-18 13:20:14,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:20:14,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:20:14,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:20:14,020 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:20:14,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... [2018-11-18 13:20:14,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... [2018-11-18 13:20:14,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... [2018-11-18 13:20:14,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... [2018-11-18 13:20:14,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... [2018-11-18 13:20:14,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... [2018-11-18 13:20:14,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... [2018-11-18 13:20:14,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:20:14,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:20:14,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:20:14,034 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:20:14,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/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 [2018-11-18 13:20:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:20:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:20:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:20:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:20:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:20:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:20:14,306 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:20:14,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:20:14 BoogieIcfgContainer [2018-11-18 13:20:14,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:20:14,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:20:14,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:20:14,310 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:20:14,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:20:13" (1/3) ... [2018-11-18 13:20:14,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ade16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:20:14, skipping insertion in model container [2018-11-18 13:20:14,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:20:14" (2/3) ... [2018-11-18 13:20:14,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ade16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:20:14, skipping insertion in model container [2018-11-18 13:20:14,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:20:14" (3/3) ... [2018-11-18 13:20:14,313 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-11-18 13:20:14,321 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:20:14,327 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 13:20:14,340 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 13:20:14,365 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:20:14,365 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:20:14,366 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:20:14,366 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:20:14,366 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:20:14,366 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:20:14,366 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:20:14,366 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:20:14,381 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 13:20:14,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 13:20:14,386 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:20:14,387 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:20:14,389 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:20:14,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:20:14,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1432253197, now seen corresponding path program 1 times [2018-11-18 13:20:14,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:20:14,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:20:14,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,445 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:20:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:20:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:20:14,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:20:14,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:20:14,492 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:20:14,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:20:14,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:20:14,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:20:14,509 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-11-18 13:20:14,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:20:14,524 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2018-11-18 13:20:14,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:20:14,525 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-11-18 13:20:14,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:20:14,533 INFO L225 Difference]: With dead ends: 39 [2018-11-18 13:20:14,533 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 13:20:14,536 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:20:14,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 13:20:14,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 13:20:14,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 13:20:14,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-18 13:20:14,565 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2018-11-18 13:20:14,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:20:14,566 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-18 13:20:14,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:20:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-18 13:20:14,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:20:14,566 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:20:14,566 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:20:14,567 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:20:14,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:20:14,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1450187957, now seen corresponding path program 1 times [2018-11-18 13:20:14,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:20:14,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:20:14,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,569 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:20:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:20:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:20:14,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:20:14,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:20:14,620 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:20:14,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:20:14,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:20:14,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:20:14,622 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2018-11-18 13:20:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:20:14,645 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-18 13:20:14,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:20:14,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 13:20:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:20:14,646 INFO L225 Difference]: With dead ends: 17 [2018-11-18 13:20:14,646 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 13:20:14,647 INFO L604 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 [2018-11-18 13:20:14,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 13:20:14,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 13:20:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 13:20:14,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-18 13:20:14,650 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2018-11-18 13:20:14,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:20:14,650 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-18 13:20:14,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:20:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 13:20:14,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:20:14,651 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:20:14,651 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:20:14,651 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:20:14,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:20:14,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1450187902, now seen corresponding path program 1 times [2018-11-18 13:20:14,652 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:20:14,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:20:14,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,653 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:20:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:20:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:20:14,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:20:14,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:20:14,694 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:20:14,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 13:20:14,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 13:20:14,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:20:14,695 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2018-11-18 13:20:14,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:20:14,745 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-11-18 13:20:14,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 13:20:14,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 13:20:14,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:20:14,746 INFO L225 Difference]: With dead ends: 18 [2018-11-18 13:20:14,746 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 13:20:14,746 INFO L604 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 [2018-11-18 13:20:14,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 13:20:14,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-11-18 13:20:14,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 13:20:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-11-18 13:20:14,749 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2018-11-18 13:20:14,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:20:14,750 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-11-18 13:20:14,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 13:20:14,750 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-11-18 13:20:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:20:14,750 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:20:14,750 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:20:14,751 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:20:14,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:20:14,751 INFO L82 PathProgramCache]: Analyzing trace with hash -2006153642, now seen corresponding path program 1 times [2018-11-18 13:20:14,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:20:14,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:20:14,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,753 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:20:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:20:14,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:20:14,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:20:14,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:20:14,778 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:20:14,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:20:14,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:20:14,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:20:14,779 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2018-11-18 13:20:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:20:14,806 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-18 13:20:14,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:20:14,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 13:20:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:20:14,807 INFO L225 Difference]: With dead ends: 15 [2018-11-18 13:20:14,807 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 13:20:14,808 INFO L604 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 [2018-11-18 13:20:14,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 13:20:14,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-18 13:20:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 13:20:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-18 13:20:14,811 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2018-11-18 13:20:14,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:20:14,811 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-18 13:20:14,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:20:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-18 13:20:14,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:20:14,812 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:20:14,812 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:20:14,812 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:20:14,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:20:14,812 INFO L82 PathProgramCache]: Analyzing trace with hash -2006151944, now seen corresponding path program 1 times [2018-11-18 13:20:14,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:20:14,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:20:14,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:20:14,814 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:20:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:20:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:20:14,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:20:14,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:20:14,835 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:20:14,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:20:14,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:20:14,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:20:14,836 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-11-18 13:20:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:20:14,848 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2018-11-18 13:20:14,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:20:14,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 13:20:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:20:14,849 INFO L225 Difference]: With dead ends: 14 [2018-11-18 13:20:14,849 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:20:14,849 INFO L604 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 [2018-11-18 13:20:14,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:20:14,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:20:14,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:20:14,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:20:14,850 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-18 13:20:14,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:20:14,850 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:20:14,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:20:14,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:20:14,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:20:14,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:20:14,888 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 13:20:14,888 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:20:14,888 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:20:14,888 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 13:20:14,889 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:20:14,889 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:20:14,889 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-18 13:20:14,889 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-11-18 13:20:14,889 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 13:20:14,889 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 21) no Hoare annotation was computed. [2018-11-18 13:20:14,889 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-11-18 13:20:14,889 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 21) the Hoare annotation is: (and (<= main_~i~0 2147483647) (<= 1 main_~i~0) (<= main_~N~0 2147483647) (<= main_~j~0 2147483647)) [2018-11-18 13:20:14,890 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 21) no Hoare annotation was computed. [2018-11-18 13:20:14,890 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 23) the Hoare annotation is: (and (<= main_~i~0 2147483647) (<= main_~N~0 2147483647)) [2018-11-18 13:20:14,890 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 23) no Hoare annotation was computed. [2018-11-18 13:20:14,890 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-11-18 13:20:14,890 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-11-18 13:20:14,890 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-18 13:20:14,890 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 13:20:14,890 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-18 13:20:14,890 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-18 13:20:14,890 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 13:20:14,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:20:14 BoogieIcfgContainer [2018-11-18 13:20:14,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:20:14,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:20:14,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:20:14,900 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:20:14,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:20:14" (3/4) ... [2018-11-18 13:20:14,904 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:20:14,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:20:14,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:20:14,912 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 13:20:14,912 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:20:14,912 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 13:20:14,946 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_28b1c926-738f-4dbc-b5da-078aa5e715eb/bin-2019/utaipan/witness.graphml [2018-11-18 13:20:14,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:20:14,947 INFO L168 Benchmark]: Toolchain (without parser) took 1091.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -112.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:20:14,948 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:20:14,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.72 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:20:14,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.94 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:20:14,949 INFO L168 Benchmark]: Boogie Preprocessor took 13.69 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:20:14,949 INFO L168 Benchmark]: RCFGBuilder took 273.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:20:14,950 INFO L168 Benchmark]: TraceAbstraction took 591.74 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: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:20:14,950 INFO L168 Benchmark]: Witness Printer took 46.88 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. [2018-11-18 13:20:14,951 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.72 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 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 12.94 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.69 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 273.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 591.74 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: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. * Witness Printer took 46.88 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: 22]: 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 - 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i <= 2147483647 && N <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((i <= 2147483647 && 1 <= i) && N <= 2147483647) && j <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 72 SDtfs, 27 SDslu, 26 SDs, 0 SdLazy, 22 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 5 MinimizatonAttempts, 2 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, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 726 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...