./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.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_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/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 9c51224894dcd32e556532086a33c2900554a2d1 .......................................................................................................................................................................................................................................................................................................................................................................... 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 03:14:51,927 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:14:51,928 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:14:51,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:14:51,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:14:51,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:14:51,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:14:51,940 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:14:51,941 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:14:51,941 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:14:51,942 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:14:51,942 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:14:51,943 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:14:51,944 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:14:51,944 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:14:51,945 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:14:51,945 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:14:51,946 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:14:51,948 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:14:51,949 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:14:51,949 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:14:51,950 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:14:51,952 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:14:51,952 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:14:51,952 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:14:51,953 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:14:51,953 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:14:51,954 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:14:51,954 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:14:51,955 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:14:51,955 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:14:51,956 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:14:51,956 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:14:51,956 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:14:51,957 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:14:51,957 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:14:51,957 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 03:14:51,967 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:14:51,967 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:14:51,968 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:14:51,968 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 03:14:51,968 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 03:14:51,969 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 03:14:51,969 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 03:14:51,969 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 03:14:51,969 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 03:14:51,969 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 03:14:51,969 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 03:14:51,970 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:14:51,970 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 03:14:51,970 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:14:51,970 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:14:51,970 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:14:51,970 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:14:51,971 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:14:51,971 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 03:14:51,971 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:14:51,971 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:14:51,971 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:14:51,971 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:14:51,971 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:14:51,972 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:14:51,972 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:14:51,972 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:14:51,972 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:14:51,972 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:14:51,972 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 03:14:51,972 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:14:51,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 03:14:51,973 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 03:14:51,973 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_954e7d75-8e14-4715-b4f7-271fe6bd1062/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 -> 9c51224894dcd32e556532086a33c2900554a2d1 [2018-11-10 03:14:51,997 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:14:52,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:14:52,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:14:52,015 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:14:52,015 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:14:52,016 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 03:14:52,067 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/data/c00ddfa64/528b2294b523457c88482fbc1732f8a0/FLAG2d1191010 [2018-11-10 03:14:52,404 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:14:52,405 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 03:14:52,410 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/data/c00ddfa64/528b2294b523457c88482fbc1732f8a0/FLAG2d1191010 [2018-11-10 03:14:52,419 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/data/c00ddfa64/528b2294b523457c88482fbc1732f8a0 [2018-11-10 03:14:52,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:14:52,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:14:52,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:14:52,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:14:52,427 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:14:52,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584a4260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52, skipping insertion in model container [2018-11-10 03:14:52,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:14:52,447 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:14:52,547 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:14:52,550 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:14:52,560 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:14:52,568 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:14:52,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52 WrapperNode [2018-11-10 03:14:52,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:14:52,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:14:52,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:14:52,569 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:14:52,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:14:52,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:14:52,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:14:52,583 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:14:52,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... [2018-11-10 03:14:52,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:14:52,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:14:52,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:14:52,598 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:14:52,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/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 03:14:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:14:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:14:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:14:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:14:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:14:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:14:52,776 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:14:52,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:14:52 BoogieIcfgContainer [2018-11-10 03:14:52,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:14:52,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:14:52,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:14:52,780 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:14:52,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:14:52" (1/3) ... [2018-11-10 03:14:52,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb600a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:14:52, skipping insertion in model container [2018-11-10 03:14:52,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:14:52" (2/3) ... [2018-11-10 03:14:52,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb600a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:14:52, skipping insertion in model container [2018-11-10 03:14:52,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:14:52" (3/3) ... [2018-11-10 03:14:52,783 INFO L112 eAbstractionObserver]: Analyzing ICFG Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 03:14:52,789 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:14:52,794 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 03:14:52,805 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 03:14:52,833 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:14:52,833 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 03:14:52,833 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:14:52,833 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:14:52,833 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:14:52,833 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:14:52,833 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:14:52,834 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:14:52,845 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 03:14:52,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 03:14:52,849 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:14:52,849 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:14:52,851 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 03:14:52,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:14:52,855 INFO L82 PathProgramCache]: Analyzing trace with hash -217682939, now seen corresponding path program 1 times [2018-11-10 03:14:52,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 03:14:52,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:14:52,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:14:52,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:14:52,900 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 03:14:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:14:52,972 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 03:14:52,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:14:52,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 03:14:52,974 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 03:14:52,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 03:14:52,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 03:14:52,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 03:14:52,990 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2018-11-10 03:14:53,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:14:53,063 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-11-10 03:14:53,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 03:14:53,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-10 03:14:53,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:14:53,070 INFO L225 Difference]: With dead ends: 36 [2018-11-10 03:14:53,070 INFO L226 Difference]: Without dead ends: 22 [2018-11-10 03:14:53,072 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 03:14:53,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-10 03:14:53,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2018-11-10 03:14:53,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-10 03:14:53,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-10 03:14:53,097 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2018-11-10 03:14:53,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:14:53,097 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-10 03:14:53,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 03:14:53,097 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-10 03:14:53,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 03:14:53,098 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:14:53,098 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:14:53,098 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 03:14:53,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:14:53,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1841763534, now seen corresponding path program 1 times [2018-11-10 03:14:53,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 03:14:53,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:14:53,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:14:53,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:14:53,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 03:14:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:14:53,137 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 03:14:53,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:14:53,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 03:14:53,137 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 03:14:53,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 03:14:53,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 03:14:53,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 03:14:53,138 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2018-11-10 03:14:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:14:53,176 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-10 03:14:53,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 03:14:53,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 03:14:53,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:14:53,178 INFO L225 Difference]: With dead ends: 15 [2018-11-10 03:14:53,178 INFO L226 Difference]: Without dead ends: 14 [2018-11-10 03:14:53,178 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 03:14:53,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-10 03:14:53,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-10 03:14:53,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-10 03:14:53,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-10 03:14:53,181 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2018-11-10 03:14:53,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:14:53,182 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-10 03:14:53,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 03:14:53,182 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-10 03:14:53,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 03:14:53,182 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:14:53,182 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:14:53,183 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 03:14:53,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:14:53,183 INFO L82 PathProgramCache]: Analyzing trace with hash -229724099, now seen corresponding path program 1 times [2018-11-10 03:14:53,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 03:14:53,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:14:53,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:14:53,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:14:53,184 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 03:14:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:14:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:14:53,235 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 03:14:53,235 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 03:14:53,236 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-11-10 03:14:53,237 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [18], [19], [21], [30], [31], [32] [2018-11-10 03:14:53,277 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 03:14:53,277 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 03:14:53,369 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 03:14:53,370 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-11-10 03:14:53,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:14:53,374 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 03:14:53,424 INFO L219 lantSequenceWeakener]: Could never weaken! [2018-11-10 03:14:53,424 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 03:14:53,461 INFO L415 sIntCurrentIteration]: We unified 12 AI predicates to 12 [2018-11-10 03:14:53,461 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 03:14:53,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 03:14:53,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-10 03:14:53,462 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 03:14:53,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 03:14:53,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 03:14:53,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 03:14:53,463 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2018-11-10 03:14:53,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:14:53,502 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-11-10 03:14:53,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 03:14:53,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-10 03:14:53,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:14:53,503 INFO L225 Difference]: With dead ends: 14 [2018-11-10 03:14:53,503 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 03:14:53,503 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 03:14:53,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 03:14:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 03:14:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 03:14:53,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 03:14:53,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-10 03:14:53,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:14:53,504 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:14:53,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 03:14:53,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 03:14:53,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 03:14:53,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 03:14:53,566 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 03:14:53,567 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:14:53,567 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:14:53,567 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 03:14:53,567 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 03:14:53,567 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 03:14:53,567 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 24) the Hoare annotation is: true [2018-11-10 03:14:53,567 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2018-11-10 03:14:53,567 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-10 03:14:53,567 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-10 03:14:53,567 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2018-11-10 03:14:53,568 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 21) no Hoare annotation was computed. [2018-11-10 03:14:53,568 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2018-11-10 03:14:53,568 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 21) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= 0 (+ .cse0 4294967296)) (<= main_~y~0 2147483647) (<= 2 (* 2 main_~y~0)) (<= .cse0 4294967294))) [2018-11-10 03:14:53,568 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2018-11-10 03:14:53,568 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-10 03:14:53,568 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-10 03:14:53,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 03:14:53 BoogieIcfgContainer [2018-11-10 03:14:53,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 03:14:53,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:14:53,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:14:53,577 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:14:53,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:14:52" (3/4) ... [2018-11-10 03:14:53,580 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 03:14:53,583 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 03:14:53,584 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 03:14:53,586 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 03:14:53,586 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 03:14:53,586 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 03:14:53,617 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_954e7d75-8e14-4715-b4f7-271fe6bd1062/bin-2019/utaipan/witness.graphml [2018-11-10 03:14:53,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:14:53,618 INFO L168 Benchmark]: Toolchain (without parser) took 1195.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -118.6 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:14:53,619 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:14:53,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.98 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:14:53,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.89 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:14:53,620 INFO L168 Benchmark]: Boogie Preprocessor took 14.43 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:14:53,620 INFO L168 Benchmark]: RCFGBuilder took 179.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 948.4 MB in the beginning and 1.2 GB in the end (delta: -213.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:14:53,621 INFO L168 Benchmark]: TraceAbstraction took 798.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 80.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 11.5 GB. [2018-11-10 03:14:53,621 INFO L168 Benchmark]: Witness Printer took 40.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 03:14:53,624 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.98 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 13.89 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.43 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 179.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 948.4 MB in the beginning and 1.2 GB in the end (delta: -213.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 798.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 80.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 11.5 GB. * Witness Printer took 40.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((0 <= 2 * x + 4294967296 && y <= 2147483647) && 2 <= 2 * y) && 2 * x <= 4294967294 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 2 error locations. SAFE Result, 0.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 30 SDslu, 36 SDs, 0 SdLazy, 26 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.16666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 25 HoareAnnotationTreeSize, 5 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 26 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...