./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_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_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/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 7c08193784b646afd298f73ae6296b7af2e0cac1 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:51:29,367 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:51:29,369 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:51:29,377 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:51:29,378 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:51:29,378 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:51:29,379 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:51:29,381 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:51:29,382 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:51:29,382 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:51:29,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:51:29,383 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:51:29,384 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:51:29,385 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:51:29,386 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:51:29,386 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:51:29,387 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:51:29,389 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:51:29,390 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:51:29,391 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:51:29,392 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:51:29,393 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:51:29,395 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:51:29,395 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:51:29,395 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:51:29,396 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:51:29,397 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:51:29,397 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:51:29,398 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:51:29,398 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:51:29,399 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:51:29,399 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:51:29,399 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:51:29,400 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:51:29,401 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:51:29,402 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:51:29,402 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-10-27 05:51:29,413 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:51:29,413 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:51:29,413 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:51:29,414 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:51:29,414 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:51:29,414 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:51:29,414 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:51:29,414 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:51:29,414 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:51:29,414 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:51:29,414 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:51:29,415 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:51:29,415 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:51:29,415 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:51:29,417 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:51:29,417 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:51:29,417 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:51:29,417 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:51:29,417 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:51:29,417 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:51:29,417 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:51:29,418 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:51:29,418 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:51:29,418 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:51:29,418 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:51:29,418 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:51:29,418 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:51:29,418 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:51:29,419 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:51:29,419 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:51:29,419 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:51:29,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:51:29,419 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:51:29,419 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_bd2c37e0-abd9-4119-8760-de503f5c7595/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 -> 7c08193784b646afd298f73ae6296b7af2e0cac1 [2018-10-27 05:51:29,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:51:29,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:51:29,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:51:29,462 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:51:29,463 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:51:29,464 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c [2018-10-27 05:51:29,510 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/data/a804e75d4/779a1fd731db43ba85e93956a77bc273/FLAGf866fe078 [2018-10-27 05:51:29,884 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:51:29,885 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c [2018-10-27 05:51:29,890 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/data/a804e75d4/779a1fd731db43ba85e93956a77bc273/FLAGf866fe078 [2018-10-27 05:51:29,901 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/data/a804e75d4/779a1fd731db43ba85e93956a77bc273 [2018-10-27 05:51:29,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:51:29,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:51:29,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:51:29,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:51:29,911 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:51:29,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:51:29" (1/1) ... [2018-10-27 05:51:29,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37646fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:29, skipping insertion in model container [2018-10-27 05:51:29,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:51:29" (1/1) ... [2018-10-27 05:51:29,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:51:29,937 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:51:30,048 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:51:30,050 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:51:30,061 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:51:30,071 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:51:30,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30 WrapperNode [2018-10-27 05:51:30,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:51:30,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:51:30,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:51:30,073 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:51:30,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... [2018-10-27 05:51:30,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... [2018-10-27 05:51:30,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:51:30,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:51:30,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:51:30,090 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:51:30,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... [2018-10-27 05:51:30,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... [2018-10-27 05:51:30,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... [2018-10-27 05:51:30,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... [2018-10-27 05:51:30,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... [2018-10-27 05:51:30,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... [2018-10-27 05:51:30,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... [2018-10-27 05:51:30,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:51:30,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:51:30,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:51:30,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:51:30,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:51:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:51:30,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:51:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:51:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:51:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:51:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:51:30,555 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:51:30,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:51:30 BoogieIcfgContainer [2018-10-27 05:51:30,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:51:30,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:51:30,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:51:30,559 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:51:30,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:51:29" (1/3) ... [2018-10-27 05:51:30,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632f4079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:51:30, skipping insertion in model container [2018-10-27 05:51:30,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:30" (2/3) ... [2018-10-27 05:51:30,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632f4079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:51:30, skipping insertion in model container [2018-10-27 05:51:30,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:51:30" (3/3) ... [2018-10-27 05:51:30,568 INFO L112 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c [2018-10-27 05:51:30,583 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:51:30,597 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-10-27 05:51:30,629 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-10-27 05:51:30,670 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:51:30,670 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:51:30,670 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:51:30,670 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:51:30,670 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:51:30,671 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:51:30,671 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:51:30,671 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:51:30,685 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-27 05:51:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:51:30,690 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:30,690 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:30,692 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:30,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:30,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1432253197, now seen corresponding path program 1 times [2018-10-27 05:51:30,699 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:30,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:30,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:30,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:30,752 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:51:30,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:30,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:51:30,826 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:30,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 05:51:30,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 05:51:30,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 05:51:30,844 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-10-27 05:51:30,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:30,861 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2018-10-27 05:51:30,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 05:51:30,862 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-10-27 05:51:30,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:30,872 INFO L225 Difference]: With dead ends: 39 [2018-10-27 05:51:30,873 INFO L226 Difference]: Without dead ends: 17 [2018-10-27 05:51:30,875 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 05:51:30,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-10-27 05:51:30,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-10-27 05:51:30,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-27 05:51:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-10-27 05:51:30,908 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2018-10-27 05:51:30,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:30,908 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-10-27 05:51:30,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 05:51:30,908 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-10-27 05:51:30,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:51:30,909 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:30,909 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:30,909 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:30,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:30,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1450187957, now seen corresponding path program 1 times [2018-10-27 05:51:30,910 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:30,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:30,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:30,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:30,911 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:30,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:51:30,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:30,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 05:51:30,985 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:30,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:51:30,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:51:30,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:51:30,987 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2018-10-27 05:51:31,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:31,135 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-10-27 05:51:31,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 05:51:31,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-27 05:51:31,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:31,137 INFO L225 Difference]: With dead ends: 28 [2018-10-27 05:51:31,137 INFO L226 Difference]: Without dead ends: 26 [2018-10-27 05:51:31,138 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 [2018-10-27 05:51:31,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-27 05:51:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2018-10-27 05:51:31,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-27 05:51:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-10-27 05:51:31,142 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 10 [2018-10-27 05:51:31,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:31,143 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-10-27 05:51:31,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:51:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-10-27 05:51:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:51:31,144 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:31,144 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:31,144 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:31,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:31,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2006153642, now seen corresponding path program 1 times [2018-10-27 05:51:31,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:31,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:31,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:31,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:31,147 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:51:31,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:31,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:51:31,189 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:31,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:51:31,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:51:31,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:31,191 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 3 states. [2018-10-27 05:51:31,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:31,246 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-10-27 05:51:31,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:51:31,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:51:31,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:31,248 INFO L225 Difference]: With dead ends: 21 [2018-10-27 05:51:31,248 INFO L226 Difference]: Without dead ends: 20 [2018-10-27 05:51:31,249 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:31,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-27 05:51:31,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-10-27 05:51:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-27 05:51:31,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-10-27 05:51:31,253 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2018-10-27 05:51:31,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:31,254 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-10-27 05:51:31,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:51:31,254 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-10-27 05:51:31,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:51:31,254 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:31,255 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:31,255 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:31,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:31,255 INFO L82 PathProgramCache]: Analyzing trace with hash -2006151944, now seen corresponding path program 1 times [2018-10-27 05:51:31,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:31,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:31,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:31,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:31,259 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:51:31,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:31,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:51:31,300 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:31,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:51:31,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:51:31,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:31,301 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 3 states. [2018-10-27 05:51:31,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:31,334 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-10-27 05:51:31,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:51:31,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:51:31,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:31,335 INFO L225 Difference]: With dead ends: 22 [2018-10-27 05:51:31,335 INFO L226 Difference]: Without dead ends: 21 [2018-10-27 05:51:31,336 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:31,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-10-27 05:51:31,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-10-27 05:51:31,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-27 05:51:31,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-10-27 05:51:31,340 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2018-10-27 05:51:31,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:31,340 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-10-27 05:51:31,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:51:31,341 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-10-27 05:51:31,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:51:31,341 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:31,341 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:31,342 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:31,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:31,342 INFO L82 PathProgramCache]: Analyzing trace with hash -802592061, now seen corresponding path program 1 times [2018-10-27 05:51:31,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:31,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:31,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:31,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:31,343 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 05:51:31,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:31,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 05:51:31,400 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:31,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:51:31,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:51:31,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:51:31,401 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 4 states. [2018-10-27 05:51:31,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:31,453 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-10-27 05:51:31,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 05:51:31,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-27 05:51:31,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:31,454 INFO L225 Difference]: With dead ends: 19 [2018-10-27 05:51:31,454 INFO L226 Difference]: Without dead ends: 18 [2018-10-27 05:51:31,454 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 [2018-10-27 05:51:31,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-27 05:51:31,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-10-27 05:51:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-27 05:51:31,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-10-27 05:51:31,457 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2018-10-27 05:51:31,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:31,458 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-10-27 05:51:31,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:51:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-10-27 05:51:31,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:51:31,458 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:31,459 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:31,459 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:31,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:31,459 INFO L82 PathProgramCache]: Analyzing trace with hash -802592006, now seen corresponding path program 1 times [2018-10-27 05:51:31,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:31,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:31,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:31,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:31,461 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:31,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:51:31,569 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:51:31,569 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:51:31,569 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-10-27 05:51:31,571 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [18], [24], [25], [26], [28], [41], [42], [43] [2018-10-27 05:51:31,625 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 05:51:31,625 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:51:31,821 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:51:31,825 INFO L272 AbstractInterpreter]: Visited 12 different actions 47 times. Merged at 4 different actions 28 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 6 variables. [2018-10-27 05:51:31,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:31,844 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:51:31,902 INFO L227 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 37.04% of their original sizes. [2018-10-27 05:51:31,902 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:51:31,977 INFO L415 sIntCurrentIteration]: We unified 13 AI predicates to 13 [2018-10-27 05:51:31,977 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:51:31,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:51:31,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2018-10-27 05:51:31,978 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:31,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 05:51:31,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 05:51:31,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:51:31,979 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 6 states. [2018-10-27 05:51:32,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:32,269 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-10-27 05:51:32,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 05:51:32,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-10-27 05:51:32,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:32,269 INFO L225 Difference]: With dead ends: 21 [2018-10-27 05:51:32,269 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 05:51:32,270 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-27 05:51:32,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 05:51:32,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 05:51:32,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 05:51:32,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 05:51:32,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-10-27 05:51:32,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:32,271 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 05:51:32,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 05:51:32,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 05:51:32,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:51:32,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 05:51:32,471 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 20 [2018-10-27 05:51:32,514 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 05:51:32,514 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:51:32,514 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:51:32,514 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 05:51:32,514 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 05:51:32,514 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 05:51:32,515 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-10-27 05:51:32,515 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 14 27) no Hoare annotation was computed. [2018-10-27 05:51:32,515 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-10-27 05:51:32,515 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 23) no Hoare annotation was computed. [2018-10-27 05:51:32,515 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 25) no Hoare annotation was computed. [2018-10-27 05:51:32,515 INFO L421 ceAbstractionStarter]: At program point L21-3(lines 21 23) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0)) (.cse1 (* 2 main_~n~0))) (and (<= main_~j~0 (+ main_~i~0 2147483648)) (<= .cse0 4294967294) (<= 0 .cse0) (<= main_~i~0 2147483646) (<= .cse1 4294967294) (<= 0 (+ .cse1 4294967296)))) [2018-10-27 05:51:32,515 INFO L425 ceAbstractionStarter]: For program point L21-4(lines 21 23) no Hoare annotation was computed. [2018-10-27 05:51:32,516 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 25) the Hoare annotation is: (let ((.cse0 (* 2 main_~n~0)) (.cse1 (* 2 main_~i~0))) (and (<= .cse0 4294967294) (<= .cse1 4294967294) (<= 0 (+ .cse0 4294967296)) (<= 0 (+ .cse1 4294967296)))) [2018-10-27 05:51:32,516 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 25) no Hoare annotation was computed. [2018-10-27 05:51:32,516 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 14 27) no Hoare annotation was computed. [2018-10-27 05:51:32,516 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 14 27) the Hoare annotation is: true [2018-10-27 05:51:32,516 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-10-27 05:51:32,516 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-27 05:51:32,516 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-27 05:51:32,516 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-10-27 05:51:32,516 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-10-27 05:51:32,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:51:32 BoogieIcfgContainer [2018-10-27 05:51:32,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:51:32,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:51:32,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:51:32,525 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:51:32,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:51:30" (3/4) ... [2018-10-27 05:51:32,529 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:51:32,533 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 05:51:32,533 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 05:51:32,536 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-27 05:51:32,536 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:51:32,536 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 05:51:32,565 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bd2c37e0-abd9-4119-8760-de503f5c7595/bin-2019/utaipan/witness.graphml [2018-10-27 05:51:32,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:51:32,566 INFO L168 Benchmark]: Toolchain (without parser) took 2659.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -79.8 MB). Peak memory consumption was 71.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:32,567 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:51:32,567 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.94 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:32,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.43 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:51:32,568 INFO L168 Benchmark]: Boogie Preprocessor took 19.55 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:51:32,568 INFO L168 Benchmark]: RCFGBuilder took 445.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -199.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:32,568 INFO L168 Benchmark]: TraceAbstraction took 1968.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.4 MB). Peak memory consumption was 103.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:32,569 INFO L168 Benchmark]: Witness Printer took 40.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:32,571 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.94 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 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 17.43 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.55 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 445.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -199.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1968.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.4 MB). Peak memory consumption was 103.4 MB. Max. memory is 11.5 GB. * Witness Printer took 40.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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: 21]: Loop Invariant Derived loop invariant: ((((j <= i + 2147483648 && 2 * j <= 4294967294) && 0 <= 2 * j) && i <= 2147483646) && 2 * n <= 4294967294) && 0 <= 2 * n + 4294967296 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((2 * n <= 4294967294 && 2 * i <= 4294967294) && 0 <= 2 * n + 4294967296) && 0 <= 2 * i + 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 1.8s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 SDtfs, 53 SDslu, 53 SDs, 0 SdLazy, 49 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9871794871794871 AbsIntWeakeningRatio, 0.3076923076923077 AbsIntAvgWeakeningVarsNumRemoved, 7.384615384615385 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 60 HoareAnnotationTreeSize, 6 FomulaSimplifications, 190 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 94 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 1491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 2/5 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...