./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/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 413fc6a41e04b7b618ff9ab274418b4a8dcf040d ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:47:22,666 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:47:22,668 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:47:22,676 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:47:22,676 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:47:22,677 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:47:22,678 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:47:22,679 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:47:22,680 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:47:22,681 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:47:22,682 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:47:22,682 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:47:22,683 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:47:22,683 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:47:22,684 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:47:22,685 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:47:22,685 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:47:22,687 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:47:22,688 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:47:22,689 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:47:22,690 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:47:22,691 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:47:22,692 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:47:22,693 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:47:22,693 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:47:22,693 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:47:22,694 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:47:22,695 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:47:22,695 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:47:22,696 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:47:22,696 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:47:22,697 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:47:22,697 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:47:22,697 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:47:22,698 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:47:22,698 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:47:22,698 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 12:47:22,709 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:47:22,709 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:47:22,710 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:47:22,710 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:47:22,710 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:47:22,710 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:47:22,710 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:47:22,710 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:47:22,710 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:47:22,711 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:47:22,711 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:47:22,711 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:47:22,711 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:47:22,712 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:47:22,712 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:47:22,712 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:47:22,712 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:47:22,712 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:47:22,712 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 12:47:22,712 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:47:22,712 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:47:22,713 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:47:22,713 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:47:22,713 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:47:22,713 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:47:22,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:47:22,713 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:47:22,713 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:47:22,714 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:47:22,714 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:47:22,714 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:47:22,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:47:22,714 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:47:22,714 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_fccd72b0-848e-4bf3-955e-3b61fa3823c8/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 -> 413fc6a41e04b7b618ff9ab274418b4a8dcf040d [2018-11-10 12:47:22,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:47:22,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:47:22,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:47:22,752 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:47:22,752 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:47:22,753 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-10 12:47:22,791 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/data/85f59f291/6f3ad991407342cebc3b243ffe1ed4be/FLAG3de4b7ae5 [2018-11-10 12:47:23,195 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:47:23,196 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-10 12:47:23,201 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/data/85f59f291/6f3ad991407342cebc3b243ffe1ed4be/FLAG3de4b7ae5 [2018-11-10 12:47:23,211 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/data/85f59f291/6f3ad991407342cebc3b243ffe1ed4be [2018-11-10 12:47:23,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:47:23,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:47:23,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:47:23,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:47:23,217 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:47:23,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23, skipping insertion in model container [2018-11-10 12:47:23,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:47:23,237 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:47:23,339 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:47:23,341 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:47:23,351 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:47:23,359 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:47:23,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23 WrapperNode [2018-11-10 12:47:23,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:47:23,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:47:23,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:47:23,360 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:47:23,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:47:23,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:47:23,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:47:23,372 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:47:23,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... [2018-11-10 12:47:23,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:47:23,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:47:23,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:47:23,384 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:47:23,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/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 [2018-11-10 12:47:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:47:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:47:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:47:23,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:47:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:47:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:47:23,555 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:47:23,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:47:23 BoogieIcfgContainer [2018-11-10 12:47:23,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:47:23,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:47:23,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:47:23,558 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:47:23,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:47:23" (1/3) ... [2018-11-10 12:47:23,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5305f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:47:23, skipping insertion in model container [2018-11-10 12:47:23,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:23" (2/3) ... [2018-11-10 12:47:23,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5305f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:47:23, skipping insertion in model container [2018-11-10 12:47:23,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:47:23" (3/3) ... [2018-11-10 12:47:23,560 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-10 12:47:23,566 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:47:23,571 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 12:47:23,580 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 12:47:23,598 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:47:23,598 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:47:23,598 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:47:23,598 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:47:23,598 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:47:23,599 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:47:23,599 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:47:23,599 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:47:23,608 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 12:47:23,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 12:47:23,612 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:47:23,613 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:47:23,614 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:47:23,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:47:23,618 INFO L82 PathProgramCache]: Analyzing trace with hash -735302488, now seen corresponding path program 1 times [2018-11-10 12:47:23,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:47:23,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:23,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:47:23,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:23,667 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:47:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:47:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:47:23,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:47:23,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 12:47:23,755 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:47:23,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 12:47:23,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 12:47:23,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 12:47:23,769 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2018-11-10 12:47:23,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:47:23,842 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2018-11-10 12:47:23,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 12:47:23,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-10 12:47:23,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:47:23,849 INFO L225 Difference]: With dead ends: 37 [2018-11-10 12:47:23,849 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 12:47:23,851 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 12:47:23,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 12:47:23,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2018-11-10 12:47:23,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 12:47:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-10 12:47:23,876 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-11-10 12:47:23,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:47:23,876 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-10 12:47:23,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 12:47:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-10 12:47:23,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 12:47:23,877 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:47:23,877 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:47:23,877 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:47:23,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:47:23,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1319540592, now seen corresponding path program 1 times [2018-11-10 12:47:23,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:47:23,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:23,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:47:23,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:23,879 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:47:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:47:23,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:47:23,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:47:23,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:47:23,903 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:47:23,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:47:23,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:47:23,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:47:23,905 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-11-10 12:47:23,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:47:23,917 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-11-10 12:47:23,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:47:23,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 12:47:23,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:47:23,918 INFO L225 Difference]: With dead ends: 17 [2018-11-10 12:47:23,918 INFO L226 Difference]: Without dead ends: 16 [2018-11-10 12:47:23,919 INFO L605 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 [2018-11-10 12:47:23,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-10 12:47:23,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-10 12:47:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-10 12:47:23,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-10 12:47:23,922 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11 [2018-11-10 12:47:23,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:47:23,922 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-10 12:47:23,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:47:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-10 12:47:23,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 12:47:23,923 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:47:23,923 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:47:23,923 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:47:23,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:47:23,924 INFO L82 PathProgramCache]: Analyzing trace with hash 509999800, now seen corresponding path program 1 times [2018-11-10 12:47:23,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:47:23,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:23,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:47:23,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:23,925 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:47:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:47:23,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:47:23,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 12:47:23,992 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 12:47:23,993 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-11-10 12:47:23,994 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [22], [23], [24], [26], [36], [37], [38] [2018-11-10 12:47:24,026 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 12:47:24,026 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 12:47:24,107 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 12:47:24,108 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-11-10 12:47:24,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:47:24,119 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 12:47:24,167 INFO L227 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-11-10 12:47:24,167 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 12:47:24,216 INFO L415 sIntCurrentIteration]: We unified 14 AI predicates to 14 [2018-11-10 12:47:24,216 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 12:47:24,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 12:47:24,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2018-11-10 12:47:24,217 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:47:24,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 12:47:24,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 12:47:24,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-10 12:47:24,217 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 7 states. [2018-11-10 12:47:24,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:47:24,300 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2018-11-10 12:47:24,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 12:47:24,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-11-10 12:47:24,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:47:24,300 INFO L225 Difference]: With dead ends: 28 [2018-11-10 12:47:24,300 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 12:47:24,301 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-10 12:47:24,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 12:47:24,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 12:47:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 12:47:24,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 12:47:24,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-10 12:47:24,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:47:24,302 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:47:24,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 12:47:24,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:47:24,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:47:24,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 12:47:24,369 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 12:47:24,369 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:47:24,369 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:47:24,369 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 12:47:24,369 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:47:24,370 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:47:24,370 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 12:47:24,370 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2018-11-10 12:47:24,370 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-10 12:47:24,370 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 25) no Hoare annotation was computed. [2018-11-10 12:47:24,370 INFO L421 ceAbstractionStarter]: At program point L19-2(lines 18 24) the Hoare annotation is: (let ((.cse1 (* 2 main_~x~0)) (.cse0 (* 2 main_~M~0))) (and (<= 2 .cse0) (<= 0 (+ .cse1 4294967296)) (<= .cse1 4294967294) (<= .cse0 4294967294))) [2018-11-10 12:47:24,370 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 25) no Hoare annotation was computed. [2018-11-10 12:47:24,370 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2018-11-10 12:47:24,371 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2018-11-10 12:47:24,371 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 12:47:24,371 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 12:47:24,371 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-10 12:47:24,371 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 24) no Hoare annotation was computed. [2018-11-10 12:47:24,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:47:24 BoogieIcfgContainer [2018-11-10 12:47:24,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:47:24,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:47:24,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:47:24,377 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:47:24,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:47:23" (3/4) ... [2018-11-10 12:47:24,380 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:47:24,384 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 12:47:24,384 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 12:47:24,387 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 12:47:24,388 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 12:47:24,388 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 12:47:24,417 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fccd72b0-848e-4bf3-955e-3b61fa3823c8/bin-2019/utaipan/witness.graphml [2018-11-10 12:47:24,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:47:24,418 INFO L168 Benchmark]: Toolchain (without parser) took 1204.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:24,418 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. [2018-11-10 12:47:24,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.13 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:24,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.66 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:47:24,420 INFO L168 Benchmark]: Boogie Preprocessor took 12.16 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:47:24,420 INFO L168 Benchmark]: RCFGBuilder took 171.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 949.4 MB in the beginning and 1.2 GB in the end (delta: -232.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:24,420 INFO L168 Benchmark]: TraceAbstraction took 821.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:24,420 INFO L168 Benchmark]: Witness Printer took 39.87 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:24,424 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 145.13 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.66 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.16 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 171.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 949.4 MB in the beginning and 1.2 GB in the end (delta: -232.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 821.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 11.5 GB. * Witness Printer took 39.87 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: 3.2 MB). Peak memory consumption was 3.2 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((2 <= 2 * M && 0 <= 2 * x + 4294967296) && 2 * x <= 4294967294) && 2 * M <= 4294967294 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 2 error locations. SAFE Result, 0.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 41 SDslu, 27 SDs, 0 SdLazy, 30 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.14285714285714285 AbsIntAvgWeakeningVarsNumRemoved, 0.42857142857142855 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 27 HoareAnnotationTreeSize, 5 FomulaSimplifications, 59 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 84 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...