./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_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/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_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/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 [2018-11-10 06:05:09,940 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:05:09,942 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:05:09,951 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:05:09,952 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:05:09,952 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:05:09,954 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:05:09,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:05:09,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:05:09,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:05:09,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:05:09,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:05:09,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:05:09,959 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:05:09,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:05:09,961 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:05:09,962 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:05:09,963 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:05:09,965 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:05:09,966 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:05:09,967 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:05:09,968 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:05:09,970 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:05:09,970 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:05:09,970 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:05:09,971 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:05:09,971 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:05:09,972 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:05:09,973 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:05:09,974 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:05:09,974 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:05:09,974 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:05:09,975 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:05:09,975 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:05:09,976 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:05:09,976 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:05:09,977 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 06:05:09,987 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:05:09,988 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:05:09,988 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:05:09,989 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:05:09,989 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:05:09,989 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:05:09,989 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 06:05:09,989 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:05:09,989 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 06:05:09,990 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 06:05:09,990 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:05:09,990 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:05:09,991 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 06:05:09,991 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:05:09,991 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:05:09,991 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:05:09,991 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:05:09,991 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:05:09,991 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 06:05:09,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:05:09,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:05:09,992 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:05:09,992 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:05:09,992 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:05:09,992 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:05:09,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:05:09,993 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:05:09,993 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:05:09,993 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:05:09,993 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 06:05:09,993 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:05:09,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:05:09,994 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 06:05:09,994 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_0629291c-5c07-435e-8bbb-0d4a316411f8/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 [2018-11-10 06:05:10,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:05:10,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:05:10,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:05:10,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:05:10,037 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:05:10,037 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-10 06:05:10,082 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/data/f96290d96/34650c0af646489abe58485bbaee8ec7/FLAGacf03b4a9 [2018-11-10 06:05:10,408 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:05:10,408 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-10 06:05:10,414 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/data/f96290d96/34650c0af646489abe58485bbaee8ec7/FLAGacf03b4a9 [2018-11-10 06:05:10,426 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/data/f96290d96/34650c0af646489abe58485bbaee8ec7 [2018-11-10 06:05:10,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:05:10,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:05:10,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:05:10,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:05:10,435 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:05:10,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,438 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 06:05:10, skipping insertion in model container [2018-11-10 06:05:10,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:05:10,460 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:05:10,583 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:05:10,586 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:05:10,599 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:05:10,610 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:05:10,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10 WrapperNode [2018-11-10 06:05:10,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:05:10,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:05:10,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:05:10,612 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:05:10,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:05:10,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:05:10,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:05:10,628 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:05:10,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... [2018-11-10 06:05:10,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:05:10,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:05:10,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:05:10,644 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:05:10,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/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 06:05:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:05:10,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:05:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:05:10,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:05:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:05:10,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:05:10,856 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:05:10,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:05:10 BoogieIcfgContainer [2018-11-10 06:05:10,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:05:10,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:05:10,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:05:10,859 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:05:10,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:05:10" (1/3) ... [2018-11-10 06:05:10,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ed00b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:05:10, skipping insertion in model container [2018-11-10 06:05:10,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:10" (2/3) ... [2018-11-10 06:05:10,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ed00b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:05:10, skipping insertion in model container [2018-11-10 06:05:10,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:05:10" (3/3) ... [2018-11-10 06:05:10,862 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-10 06:05:10,869 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:05:10,874 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 06:05:10,885 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 06:05:10,908 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:05:10,908 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:05:10,908 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:05:10,908 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:05:10,908 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:05:10,909 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:05:10,909 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:05:10,909 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:05:10,922 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-10 06:05:10,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 06:05:10,927 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:10,928 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:10,930 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 06:05:10,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:10,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1984601080, now seen corresponding path program 1 times [2018-11-10 06:05:10,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:10,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:10,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:10,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:10,974 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:11,040 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 06:05:11,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:05:11,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:05:11,042 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:05:11,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 06:05:11,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 06:05:11,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 06:05:11,060 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-11-10 06:05:11,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:11,115 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2018-11-10 06:05:11,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 06:05:11,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 06:05:11,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:11,124 INFO L225 Difference]: With dead ends: 44 [2018-11-10 06:05:11,124 INFO L226 Difference]: Without dead ends: 18 [2018-11-10 06:05:11,127 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 06:05:11,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-10 06:05:11,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-10 06:05:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 06:05:11,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-10 06:05:11,156 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2018-11-10 06:05:11,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:11,157 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-10 06:05:11,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 06:05:11,157 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-10 06:05:11,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 06:05:11,158 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:11,158 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:11,158 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 06:05:11,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:11,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1393091410, now seen corresponding path program 1 times [2018-11-10 06:05:11,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:11,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:11,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,160 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:11,180 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 06:05:11,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:05:11,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:05:11,181 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:05:11,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 06:05:11,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 06:05:11,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 06:05:11,183 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-11-10 06:05:11,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:11,210 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-10 06:05:11,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 06:05:11,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 06:05:11,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:11,211 INFO L225 Difference]: With dead ends: 20 [2018-11-10 06:05:11,211 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 06:05:11,212 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 06:05:11,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 06:05:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-11-10 06:05:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 06:05:11,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-10 06:05:11,215 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2018-11-10 06:05:11,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:11,215 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-10 06:05:11,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 06:05:11,215 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-10 06:05:11,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 06:05:11,216 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:11,216 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:11,216 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 06:05:11,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:11,216 INFO L82 PathProgramCache]: Analyzing trace with hash 235577051, now seen corresponding path program 1 times [2018-11-10 06:05:11,216 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:11,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:11,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,218 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:11,238 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 06:05:11,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:05:11,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:05:11,238 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:05:11,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 06:05:11,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 06:05:11,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 06:05:11,240 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-11-10 06:05:11,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:11,277 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2018-11-10 06:05:11,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 06:05:11,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-10 06:05:11,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:11,278 INFO L225 Difference]: With dead ends: 26 [2018-11-10 06:05:11,279 INFO L226 Difference]: Without dead ends: 25 [2018-11-10 06:05:11,279 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 06:05:11,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-10 06:05:11,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2018-11-10 06:05:11,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 06:05:11,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-10 06:05:11,285 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 12 [2018-11-10 06:05:11,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:11,285 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-10 06:05:11,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 06:05:11,286 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-10 06:05:11,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 06:05:11,287 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:11,287 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:11,287 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 06:05:11,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:11,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1287045947, now seen corresponding path program 1 times [2018-11-10 06:05:11,288 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:11,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:11,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,291 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:11,307 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 06:05:11,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:05:11,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:05:11,308 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:05:11,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 06:05:11,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 06:05:11,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 06:05:11,309 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 3 states. [2018-11-10 06:05:11,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:11,330 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2018-11-10 06:05:11,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 06:05:11,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-10 06:05:11,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:11,331 INFO L225 Difference]: With dead ends: 22 [2018-11-10 06:05:11,331 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 06:05:11,332 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 06:05:11,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 06:05:11,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-11-10 06:05:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 06:05:11,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-11-10 06:05:11,336 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2018-11-10 06:05:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:11,336 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-11-10 06:05:11,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 06:05:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-10 06:05:11,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 06:05:11,337 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:11,337 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:11,339 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 06:05:11,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:11,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1212701869, now seen corresponding path program 1 times [2018-11-10 06:05:11,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:11,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:11,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,341 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 06:05:11,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:11,380 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 06:05:11,381 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-11-10 06:05:11,383 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [20], [24], [30], [31], [32], [34], [53], [54], [55] [2018-11-10 06:05:11,422 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 06:05:11,422 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 06:05:11,581 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 06:05:11,582 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. [2018-11-10 06:05:11,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:11,594 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 06:05:11,649 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 45.45% of their original sizes. [2018-11-10 06:05:11,649 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 06:05:11,698 INFO L415 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2018-11-10 06:05:11,698 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 06:05:11,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 06:05:11,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [3] total 9 [2018-11-10 06:05:11,699 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:05:11,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 06:05:11,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 06:05:11,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-11-10 06:05:11,700 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 8 states. [2018-11-10 06:05:11,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:11,979 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2018-11-10 06:05:11,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 06:05:11,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-10 06:05:11,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:11,980 INFO L225 Difference]: With dead ends: 58 [2018-11-10 06:05:11,980 INFO L226 Difference]: Without dead ends: 45 [2018-11-10 06:05:11,980 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-11-10 06:05:11,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-10 06:05:11,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 30. [2018-11-10 06:05:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-10 06:05:11,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2018-11-10 06:05:11,985 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 16 [2018-11-10 06:05:11,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:11,985 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2018-11-10 06:05:11,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 06:05:11,986 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-11-10 06:05:11,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 06:05:11,986 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:11,986 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:11,987 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 06:05:11,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:11,987 INFO L82 PathProgramCache]: Analyzing trace with hash -644642890, now seen corresponding path program 1 times [2018-11-10 06:05:11,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:11,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:11,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:11,989 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 06:05:12,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:12,021 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 06:05:12,021 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-11-10 06:05:12,022 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [20], [24], [30], [31], [32], [34], [39], [42], [44], [53], [54], [55] [2018-11-10 06:05:12,022 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 06:05:12,023 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 06:05:12,106 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 06:05:12,106 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. [2018-11-10 06:05:12,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:12,108 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 06:05:12,139 INFO L227 lantSequenceWeakener]: Weakened 16 states. On average, predicates are now at 50% of their original sizes. [2018-11-10 06:05:12,139 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 06:05:12,239 INFO L415 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2018-11-10 06:05:12,239 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 06:05:12,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 06:05:12,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [3] total 10 [2018-11-10 06:05:12,239 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:05:12,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 06:05:12,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 06:05:12,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 06:05:12,241 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 9 states. [2018-11-10 06:05:12,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:12,441 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2018-11-10 06:05:12,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 06:05:12,442 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-11-10 06:05:12,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:12,446 INFO L225 Difference]: With dead ends: 59 [2018-11-10 06:05:12,446 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 06:05:12,447 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2018-11-10 06:05:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 06:05:12,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 06:05:12,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 06:05:12,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 06:05:12,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-10 06:05:12,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:12,448 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:05:12,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 06:05:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 06:05:12,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 06:05:12,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 06:05:12,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-10 06:05:12,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-10 06:05:12,558 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 06:05:12,558 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 06:05:12,558 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 06:05:12,558 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 06:05:12,558 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 06:05:12,558 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 06:05:12,559 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 30) no Hoare annotation was computed. [2018-11-10 06:05:12,559 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-10 06:05:12,559 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-10 06:05:12,559 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-11-10 06:05:12,559 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2018-11-10 06:05:12,559 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 27) no Hoare annotation was computed. [2018-11-10 06:05:12,559 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)))) [2018-11-10 06:05:12,560 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 30) no Hoare annotation was computed. [2018-11-10 06:05:12,560 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 06:05:12,560 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-10 06:05:12,560 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 30) the Hoare annotation is: true [2018-11-10 06:05:12,560 INFO L425 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-11-10 06:05:12,560 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 24) no Hoare annotation was computed. [2018-11-10 06:05:12,560 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))) [2018-11-10 06:05:12,561 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 28) no Hoare annotation was computed. [2018-11-10 06:05:12,561 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 28) no Hoare annotation was computed. [2018-11-10 06:05:12,561 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 06:05:12,561 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-10 06:05:12,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:05:12 BoogieIcfgContainer [2018-11-10 06:05:12,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:05:12,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:05:12,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:05:12,569 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:05:12,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:05:10" (3/4) ... [2018-11-10 06:05:12,573 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 06:05:12,578 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 06:05:12,578 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 06:05:12,581 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 06:05:12,582 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 06:05:12,582 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 06:05:12,616 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0629291c-5c07-435e-8bbb-0d4a316411f8/bin-2019/utaipan/witness.graphml [2018-11-10 06:05:12,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:05:12,617 INFO L168 Benchmark]: Toolchain (without parser) took 2187.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 960.2 MB in the beginning and 970.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 158.3 MB. Max. memory is 11.5 GB. [2018-11-10 06:05:12,618 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:05:12,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.12 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 06:05:12,619 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.46 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 06:05:12,619 INFO L168 Benchmark]: Boogie Preprocessor took 14.94 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 06:05:12,620 INFO L168 Benchmark]: RCFGBuilder took 212.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 946.7 MB in the beginning and 1.2 GB in the end (delta: -208.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-10 06:05:12,620 INFO L168 Benchmark]: TraceAbstraction took 1712.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 974.0 MB in the end (delta: 181.5 MB). Peak memory consumption was 181.5 MB. Max. memory is 11.5 GB. [2018-11-10 06:05:12,620 INFO L168 Benchmark]: Witness Printer took 47.56 ms. Allocated memory is still 1.2 GB. Free memory was 974.0 MB in the beginning and 970.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 06:05:12,623 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.12 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 16.46 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 14.94 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 212.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 946.7 MB in the beginning and 1.2 GB in the end (delta: -208.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1712.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 974.0 MB in the end (delta: 181.5 MB). Peak memory consumption was 181.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.56 ms. Allocated memory is still 1.2 GB. Free memory was 974.0 MB in the beginning and 970.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 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 - 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, 1.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 SDtfs, 145 SDslu, 78 SDs, 0 SdLazy, 87 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s 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, 0.2s 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, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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...