./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_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_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/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 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:49:02,738 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:49:02,740 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:49:02,748 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:49:02,749 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:49:02,749 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:49:02,750 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:49:02,752 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:49:02,753 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:49:02,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:49:02,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:49:02,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:49:02,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:49:02,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:49:02,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:49:02,758 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:49:02,759 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:49:02,761 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:49:02,762 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:49:02,764 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:49:02,765 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:49:02,766 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:49:02,767 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:49:02,767 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:49:02,768 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:49:02,769 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:49:02,769 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:49:02,770 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:49:02,770 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:49:02,771 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:49:02,771 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:49:02,772 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:49:02,772 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:49:02,773 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:49:02,774 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:49:02,774 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:49:02,775 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-10-27 05:49:02,785 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:49:02,785 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:49:02,786 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:49:02,786 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:49:02,786 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:49:02,786 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:49:02,786 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:49:02,786 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:49:02,786 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:49:02,787 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:49:02,787 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:49:02,787 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:49:02,787 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:49:02,787 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:49:02,788 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:49:02,788 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:49:02,788 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:49:02,788 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:49:02,788 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:49:02,790 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:49:02,790 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:49:02,790 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:49:02,790 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:49:02,790 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:49:02,790 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:49:02,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:49:02,791 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:49:02,791 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:49:02,791 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:49:02,791 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:49:02,791 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:49:02,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:49:02,791 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:49:02,791 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_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/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 -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2018-10-27 05:49:02,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:49:02,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:49:02,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:49:02,830 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:49:02,830 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:49:02,831 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-10-27 05:49:02,877 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/data/041d0f856/1187e5ee7e564a85a65dd1dc8574cdb6/FLAG7a3d0174f [2018-10-27 05:49:03,255 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:49:03,256 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-10-27 05:49:03,261 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/data/041d0f856/1187e5ee7e564a85a65dd1dc8574cdb6/FLAG7a3d0174f [2018-10-27 05:49:03,273 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/data/041d0f856/1187e5ee7e564a85a65dd1dc8574cdb6 [2018-10-27 05:49:03,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:49:03,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:49:03,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:49:03,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:49:03,281 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:49:03,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2497769d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03, skipping insertion in model container [2018-10-27 05:49:03,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:49:03,305 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:49:03,432 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:49:03,435 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:49:03,448 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:49:03,461 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:49:03,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03 WrapperNode [2018-10-27 05:49:03,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:49:03,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:49:03,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:49:03,462 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:49:03,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:49:03,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:49:03,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:49:03,484 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:49:03,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... [2018-10-27 05:49:03,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:49:03,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:49:03,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:49:03,503 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:49:03,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/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 [2018-10-27 05:49:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:49:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:49:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:49:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:49:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:49:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:49:04,054 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:49:04,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:49:04 BoogieIcfgContainer [2018-10-27 05:49:04,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:49:04,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:49:04,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:49:04,062 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:49:04,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:49:03" (1/3) ... [2018-10-27 05:49:04,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7743189b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:49:04, skipping insertion in model container [2018-10-27 05:49:04,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:49:03" (2/3) ... [2018-10-27 05:49:04,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7743189b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:49:04, skipping insertion in model container [2018-10-27 05:49:04,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:49:04" (3/3) ... [2018-10-27 05:49:04,067 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-10-27 05:49:04,077 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:49:04,085 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-10-27 05:49:04,103 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-10-27 05:49:04,136 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:49:04,136 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:49:04,136 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:49:04,136 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:49:04,137 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:49:04,137 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:49:04,137 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:49:04,137 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:49:04,155 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-27 05:49:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:49:04,161 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:49:04,162 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:49:04,171 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:49:04,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:49:04,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1984601080, now seen corresponding path program 1 times [2018-10-27 05:49:04,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:49:04,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:04,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:49:04,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:04,235 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:49:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:49:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:49:04,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:49:04,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:49:04,399 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:49:04,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:49:04,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:49:04,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:49:04,419 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-10-27 05:49:04,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:49:04,606 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2018-10-27 05:49:04,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:49:04,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:49:04,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:49:04,617 INFO L225 Difference]: With dead ends: 44 [2018-10-27 05:49:04,617 INFO L226 Difference]: Without dead ends: 18 [2018-10-27 05:49:04,620 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 [2018-10-27 05:49:04,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-27 05:49:04,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-10-27 05:49:04,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-27 05:49:04,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-10-27 05:49:04,675 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2018-10-27 05:49:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:49:04,675 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-10-27 05:49:04,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:49:04,676 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-10-27 05:49:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:49:04,678 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:49:04,678 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:49:04,679 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:49:04,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:49:04,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1393091410, now seen corresponding path program 1 times [2018-10-27 05:49:04,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:49:04,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:04,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:49:04,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:04,681 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:49:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:49:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:49:04,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:49:04,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:49:04,714 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:49:04,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:49:04,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:49:04,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:49:04,716 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-10-27 05:49:04,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:49:04,781 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-10-27 05:49:04,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:49:04,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:49:04,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:49:04,782 INFO L225 Difference]: With dead ends: 20 [2018-10-27 05:49:04,782 INFO L226 Difference]: Without dead ends: 19 [2018-10-27 05:49:04,783 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 [2018-10-27 05:49:04,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-27 05:49:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-10-27 05:49:04,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-27 05:49:04,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-10-27 05:49:04,787 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2018-10-27 05:49:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:49:04,787 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-10-27 05:49:04,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:49:04,788 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-10-27 05:49:04,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 05:49:04,788 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:49:04,788 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:49:04,789 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:49:04,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:49:04,789 INFO L82 PathProgramCache]: Analyzing trace with hash 235577051, now seen corresponding path program 1 times [2018-10-27 05:49:04,789 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:49:04,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:04,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:49:04,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:04,791 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:49:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:49:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:49:04,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:49:04,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:49:04,817 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:49:04,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:49:04,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:49:04,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:49:04,818 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-10-27 05:49:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:49:04,881 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2018-10-27 05:49:04,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:49:04,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-10-27 05:49:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:49:04,882 INFO L225 Difference]: With dead ends: 26 [2018-10-27 05:49:04,883 INFO L226 Difference]: Without dead ends: 25 [2018-10-27 05:49:04,883 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 [2018-10-27 05:49:04,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-27 05:49:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2018-10-27 05:49:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-27 05:49:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-10-27 05:49:04,890 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 12 [2018-10-27 05:49:04,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:49:04,891 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-10-27 05:49:04,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:49:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-10-27 05:49:04,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 05:49:04,891 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:49:04,892 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:49:04,892 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:49:04,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:49:04,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1287045947, now seen corresponding path program 1 times [2018-10-27 05:49:04,893 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:49:04,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:04,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:49:04,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:04,894 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:49:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:49:04,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:49:04,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:49:04,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:49:04,954 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:49:04,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:49:04,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:49:04,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:49:04,956 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 3 states. [2018-10-27 05:49:05,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:49:05,013 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2018-10-27 05:49:05,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:49:05,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-27 05:49:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:49:05,014 INFO L225 Difference]: With dead ends: 22 [2018-10-27 05:49:05,014 INFO L226 Difference]: Without dead ends: 21 [2018-10-27 05:49:05,014 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 [2018-10-27 05:49:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-10-27 05:49:05,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-10-27 05:49:05,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-27 05:49:05,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-10-27 05:49:05,019 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2018-10-27 05:49:05,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:49:05,020 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-10-27 05:49:05,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:49:05,020 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-10-27 05:49:05,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-27 05:49:05,020 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:49:05,021 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:49:05,021 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:49:05,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:49:05,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1212701869, now seen corresponding path program 1 times [2018-10-27 05:49:05,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:49:05,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:05,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:49:05,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:05,024 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:49:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:49:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 05:49:05,086 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:49:05,086 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:49:05,087 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-10-27 05:49:05,089 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [20], [24], [30], [31], [32], [34], [53], [54], [55] [2018-10-27 05:49:05,141 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 05:49:05,141 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:49:05,358 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:49:05,360 INFO L272 AbstractInterpreter]: Visited 14 different actions 46 times. Merged at 4 different actions 26 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-10-27 05:49:05,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:49:05,392 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:49:05,465 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 45.45% of their original sizes. [2018-10-27 05:49:05,465 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:49:05,785 INFO L415 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2018-10-27 05:49:05,785 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:49:05,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:49:05,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [3] total 9 [2018-10-27 05:49:05,786 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:49:05,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 05:49:05,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 05:49:05,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:49:05,787 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 8 states. [2018-10-27 05:49:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:49:06,421 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2018-10-27 05:49:06,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-27 05:49:06,421 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-10-27 05:49:06,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:49:06,422 INFO L225 Difference]: With dead ends: 58 [2018-10-27 05:49:06,422 INFO L226 Difference]: Without dead ends: 45 [2018-10-27 05:49:06,423 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-10-27 05:49:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-27 05:49:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 30. [2018-10-27 05:49:06,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-10-27 05:49:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2018-10-27 05:49:06,430 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 16 [2018-10-27 05:49:06,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:49:06,430 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2018-10-27 05:49:06,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 05:49:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-10-27 05:49:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 05:49:06,431 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:49:06,432 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:49:06,433 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:49:06,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:49:06,433 INFO L82 PathProgramCache]: Analyzing trace with hash -644642890, now seen corresponding path program 1 times [2018-10-27 05:49:06,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:49:06,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:06,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:49:06,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:49:06,435 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:49:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:49:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 05:49:06,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:49:06,506 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:49:06,506 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-10-27 05:49:06,506 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [20], [24], [30], [31], [32], [34], [39], [42], [44], [53], [54], [55] [2018-10-27 05:49:06,509 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 05:49:06,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:49:06,606 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:49:06,607 INFO L272 AbstractInterpreter]: Visited 17 different actions 106 times. Merged at 10 different actions 73 times. Widened at 3 different actions 9 times. Found 9 fixpoints after 4 different actions. Largest state had 5 variables. [2018-10-27 05:49:06,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:49:06,649 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:49:06,685 INFO L227 lantSequenceWeakener]: Weakened 16 states. On average, predicates are now at 50% of their original sizes. [2018-10-27 05:49:06,685 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:49:06,970 INFO L415 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2018-10-27 05:49:06,970 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:49:06,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:49:06,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [3] total 10 [2018-10-27 05:49:06,971 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:49:06,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 05:49:06,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 05:49:06,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:49:06,972 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 9 states. [2018-10-27 05:49:07,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:49:07,465 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2018-10-27 05:49:07,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-27 05:49:07,466 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-10-27 05:49:07,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:49:07,466 INFO L225 Difference]: With dead ends: 59 [2018-10-27 05:49:07,466 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 05:49:07,467 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2018-10-27 05:49:07,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 05:49:07,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 05:49:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 05:49:07,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 05:49:07,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-27 05:49:07,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:49:07,468 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 05:49:07,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 05:49:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 05:49:07,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:49:07,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 05:49:07,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 05:49:07,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 05:49:07,907 WARN L179 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 13 [2018-10-27 05:49:07,921 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 05:49:07,921 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:49:07,921 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:49:07,921 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 05:49:07,921 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 05:49:07,922 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 05:49:07,922 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 30) no Hoare annotation was computed. [2018-10-27 05:49:07,922 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-10-27 05:49:07,922 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-10-27 05:49:07,922 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-10-27 05:49:07,922 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-10-27 05:49:07,922 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2018-10-27 05:49:07,923 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 27) no Hoare annotation was computed. [2018-10-27 05:49:07,923 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 27) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= .cse0 2147483646) (<= 0 (+ .cse0 2)))) [2018-10-27 05:49:07,923 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 30) no Hoare annotation was computed. [2018-10-27 05:49:07,923 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-10-27 05:49:07,923 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 30) the Hoare annotation is: true [2018-10-27 05:49:07,924 INFO L425 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-10-27 05:49:07,924 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 24) no Hoare annotation was computed. [2018-10-27 05:49:07,924 INFO L421 ceAbstractionStarter]: At program point L22-3(lines 22 24) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0)) (.cse1 (* 2 main_~y~0))) (and (<= .cse0 2147483646) (<= .cse1 4294967294) (<= 4 .cse0) (<= 2 .cse1))) [2018-10-27 05:49:07,924 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 28) no Hoare annotation was computed. [2018-10-27 05:49:07,929 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 28) no Hoare annotation was computed. [2018-10-27 05:49:07,929 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-10-27 05:49:07,929 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-10-27 05:49:07,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:49:07 BoogieIcfgContainer [2018-10-27 05:49:07,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:49:07,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:49:07,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:49:07,945 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:49:07,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:49:04" (3/4) ... [2018-10-27 05:49:07,951 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:49:07,957 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 05:49:07,958 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 05:49:07,962 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-27 05:49:07,963 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:49:07,963 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 05:49:08,004 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a4189a7e-c5bc-4bb9-b2fb-8036c7ae1f51/bin-2019/utaipan/witness.graphml [2018-10-27 05:49:08,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:49:08,005 INFO L168 Benchmark]: Toolchain (without parser) took 4729.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 961.1 MB in the beginning and 922.4 MB in the end (delta: 38.8 MB). Peak memory consumption was 160.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:49:08,006 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:49:08,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.09 ms. Allocated memory is still 1.0 GB. Free memory was 961.1 MB in the beginning and 950.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:49:08,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.18 ms. Allocated memory is still 1.0 GB. Free memory is still 950.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:49:08,007 INFO L168 Benchmark]: Boogie Preprocessor took 19.66 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 945.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:49:08,008 INFO L168 Benchmark]: RCFGBuilder took 552.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -147.5 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:49:08,010 INFO L168 Benchmark]: TraceAbstraction took 3883.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.5 MB in the end (delta: 163.1 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:49:08,010 INFO L168 Benchmark]: Witness Printer took 59.90 ms. Allocated memory is still 1.2 GB. Free memory was 929.5 MB in the beginning and 922.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:49:08,013 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.09 ms. Allocated memory is still 1.0 GB. Free memory was 961.1 MB in the beginning and 950.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.18 ms. Allocated memory is still 1.0 GB. Free memory is still 950.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.66 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 945.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 552.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -147.5 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3883.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.5 MB in the end (delta: 163.1 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. * Witness Printer took 59.90 ms. Allocated memory is still 1.2 GB. Free memory was 929.5 MB in the beginning and 922.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((2 * x <= 2147483646 && 2 * y <= 4294967294) && 4 <= 2 * x) && 2 <= 2 * y - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 2 * x <= 2147483646 && 0 <= 2 * x + 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 4 error locations. SAFE Result, 3.8s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 SDtfs, 145 SDslu, 78 SDs, 0 SdLazy, 87 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.982857142857143 AbsIntWeakeningRatio, 0.2571428571428571 AbsIntAvgWeakeningVarsNumRemoved, 9.82857142857143 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 16 NumberOfFragments, 38 HoareAnnotationTreeSize, 6 FomulaSimplifications, 1113 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 156 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 2071 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 5/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...