./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_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_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/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 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 05:51:17,301 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:51:17,303 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:51:17,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:51:17,314 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:51:17,315 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:51:17,316 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:51:17,318 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:51:17,320 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:51:17,321 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:51:17,322 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:51:17,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:51:17,323 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:51:17,324 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:51:17,325 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:51:17,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:51:17,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:51:17,329 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:51:17,331 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:51:17,333 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:51:17,334 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:51:17,336 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:51:17,337 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:51:17,338 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:51:17,338 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:51:17,339 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:51:17,340 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:51:17,341 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:51:17,342 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:51:17,344 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:51:17,344 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:51:17,344 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:51:17,345 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:51:17,345 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:51:17,346 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:51:17,347 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:51:17,348 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-10-27 05:51:17,361 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:51:17,361 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:51:17,362 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:51:17,362 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:51:17,363 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:51:17,363 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:51:17,363 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:51:17,363 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:51:17,363 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:51:17,363 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:51:17,364 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:51:17,364 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:51:17,365 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:51:17,365 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:51:17,365 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:51:17,365 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:51:17,365 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:51:17,365 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:51:17,365 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:51:17,366 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:51:17,366 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:51:17,368 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:51:17,368 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:51:17,368 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:51:17,369 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:51:17,369 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:51:17,369 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:51:17,369 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:51:17,369 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:51:17,370 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:51:17,370 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:51:17,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:51:17,370 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:51:17,370 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_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/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 -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2018-10-27 05:51:17,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:51:17,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:51:17,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:51:17,419 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:51:17,420 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:51:17,420 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-10-27 05:51:17,473 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/data/4192b3ecf/8ad12b47aeb34aa8b354d88bead1b060/FLAG1e63f953c [2018-10-27 05:51:17,864 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:51:17,865 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-10-27 05:51:17,875 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/data/4192b3ecf/8ad12b47aeb34aa8b354d88bead1b060/FLAG1e63f953c [2018-10-27 05:51:17,887 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/data/4192b3ecf/8ad12b47aeb34aa8b354d88bead1b060 [2018-10-27 05:51:17,890 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:51:17,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:51:17,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:51:17,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:51:17,896 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:51:17,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:51:17" (1/1) ... [2018-10-27 05:51:17,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a81868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:17, skipping insertion in model container [2018-10-27 05:51:17,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:51:17" (1/1) ... [2018-10-27 05:51:17,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:51:17,929 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:51:18,074 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:51:18,078 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:51:18,092 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:51:18,103 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:51:18,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18 WrapperNode [2018-10-27 05:51:18,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:51:18,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:51:18,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:51:18,104 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:51:18,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... [2018-10-27 05:51:18,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... [2018-10-27 05:51:18,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:51:18,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:51:18,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:51:18,126 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:51:18,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... [2018-10-27 05:51:18,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... [2018-10-27 05:51:18,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... [2018-10-27 05:51:18,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... [2018-10-27 05:51:18,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... [2018-10-27 05:51:18,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... [2018-10-27 05:51:18,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... [2018-10-27 05:51:18,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:51:18,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:51:18,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:51:18,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:51:18,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/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 05:51:18,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:51:18,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:51:18,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:51:18,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:51:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:51:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:51:18,708 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:51:18,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:51:18 BoogieIcfgContainer [2018-10-27 05:51:18,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:51:18,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:51:18,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:51:18,714 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:51:18,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:51:17" (1/3) ... [2018-10-27 05:51:18,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db98365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:51:18, skipping insertion in model container [2018-10-27 05:51:18,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:51:18" (2/3) ... [2018-10-27 05:51:18,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db98365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:51:18, skipping insertion in model container [2018-10-27 05:51:18,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:51:18" (3/3) ... [2018-10-27 05:51:18,717 INFO L112 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-10-27 05:51:18,726 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:51:18,732 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-27 05:51:18,745 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-27 05:51:18,776 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:51:18,776 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:51:18,776 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:51:18,777 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:51:18,777 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:51:18,777 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:51:18,777 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:51:18,777 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:51:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-10-27 05:51:18,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:51:18,802 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:18,803 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:18,805 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:18,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:18,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1985613365, now seen corresponding path program 1 times [2018-10-27 05:51:18,814 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:18,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:18,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:18,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:18,876 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:19,020 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 05:51:19,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:19,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:51:19,023 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:19,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:51:19,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:51:19,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:19,047 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2018-10-27 05:51:19,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:19,195 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2018-10-27 05:51:19,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:51:19,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:51:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:19,207 INFO L225 Difference]: With dead ends: 50 [2018-10-27 05:51:19,207 INFO L226 Difference]: Without dead ends: 36 [2018-10-27 05:51:19,211 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 05:51:19,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-27 05:51:19,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-10-27 05:51:19,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-27 05:51:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-10-27 05:51:19,253 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2018-10-27 05:51:19,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:19,254 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-10-27 05:51:19,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:51:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-10-27 05:51:19,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:51:19,255 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:19,255 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:19,256 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:19,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:19,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1985613557, now seen corresponding path program 1 times [2018-10-27 05:51:19,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:19,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:19,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,258 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:19,300 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 05:51:19,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:19,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:51:19,300 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:19,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:51:19,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:51:19,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:19,303 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 3 states. [2018-10-27 05:51:19,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:19,339 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2018-10-27 05:51:19,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:51:19,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:51:19,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:19,341 INFO L225 Difference]: With dead ends: 34 [2018-10-27 05:51:19,341 INFO L226 Difference]: Without dead ends: 32 [2018-10-27 05:51:19,343 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 05:51:19,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-27 05:51:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-10-27 05:51:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-27 05:51:19,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2018-10-27 05:51:19,348 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 10 [2018-10-27 05:51:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:19,348 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2018-10-27 05:51:19,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:51:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2018-10-27 05:51:19,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:51:19,349 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:19,349 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:19,350 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:19,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:19,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1985629253, now seen corresponding path program 1 times [2018-10-27 05:51:19,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:19,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:19,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,353 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:19,407 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 05:51:19,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:19,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:51:19,408 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:19,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:51:19,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:51:19,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:19,409 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 3 states. [2018-10-27 05:51:19,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:19,443 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2018-10-27 05:51:19,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:51:19,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:51:19,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:19,446 INFO L225 Difference]: With dead ends: 32 [2018-10-27 05:51:19,446 INFO L226 Difference]: Without dead ends: 31 [2018-10-27 05:51:19,447 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 05:51:19,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-27 05:51:19,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-10-27 05:51:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-27 05:51:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2018-10-27 05:51:19,451 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 10 [2018-10-27 05:51:19,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:19,452 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2018-10-27 05:51:19,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:51:19,452 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2018-10-27 05:51:19,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:51:19,453 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:19,453 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:19,453 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:19,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:19,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1424472225, now seen corresponding path program 1 times [2018-10-27 05:51:19,454 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:19,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:19,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,456 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:19,528 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 05:51:19,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:19,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:51:19,528 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:19,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:51:19,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:51:19,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:19,529 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 3 states. [2018-10-27 05:51:19,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:19,624 INFO L93 Difference]: Finished difference Result 62 states and 79 transitions. [2018-10-27 05:51:19,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:51:19,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:51:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:19,626 INFO L225 Difference]: With dead ends: 62 [2018-10-27 05:51:19,626 INFO L226 Difference]: Without dead ends: 36 [2018-10-27 05:51:19,626 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 05:51:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-27 05:51:19,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-10-27 05:51:19,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-27 05:51:19,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-10-27 05:51:19,633 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 11 [2018-10-27 05:51:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:19,633 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-10-27 05:51:19,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:51:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-10-27 05:51:19,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:51:19,634 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:19,634 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:19,635 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:19,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:19,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1424478183, now seen corresponding path program 1 times [2018-10-27 05:51:19,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:19,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:19,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,637 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:19,691 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 05:51:19,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:19,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:51:19,692 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:19,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:51:19,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:51:19,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:19,694 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 3 states. [2018-10-27 05:51:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:19,753 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-10-27 05:51:19,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:51:19,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:51:19,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:19,754 INFO L225 Difference]: With dead ends: 38 [2018-10-27 05:51:19,754 INFO L226 Difference]: Without dead ends: 36 [2018-10-27 05:51:19,755 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 05:51:19,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-27 05:51:19,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-10-27 05:51:19,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-27 05:51:19,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-10-27 05:51:19,758 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 11 [2018-10-27 05:51:19,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:19,759 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-10-27 05:51:19,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:51:19,759 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-10-27 05:51:19,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:51:19,760 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:19,760 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:19,761 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:19,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:19,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1424964769, now seen corresponding path program 1 times [2018-10-27 05:51:19,761 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:19,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:19,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,765 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:19,796 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 05:51:19,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:19,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:51:19,797 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:19,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:51:19,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:51:19,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:51:19,798 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 3 states. [2018-10-27 05:51:19,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:19,923 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-10-27 05:51:19,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:51:19,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:51:19,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:19,927 INFO L225 Difference]: With dead ends: 34 [2018-10-27 05:51:19,928 INFO L226 Difference]: Without dead ends: 33 [2018-10-27 05:51:19,928 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 05:51:19,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-27 05:51:19,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-10-27 05:51:19,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-27 05:51:19,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-10-27 05:51:19,936 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2018-10-27 05:51:19,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:19,936 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-10-27 05:51:19,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:51:19,936 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-10-27 05:51:19,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-27 05:51:19,937 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:51:19,938 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:51:19,939 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:51:19,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:51:19,939 INFO L82 PathProgramCache]: Analyzing trace with hash -534858710, now seen corresponding path program 1 times [2018-10-27 05:51:19,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:51:19,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:51:19,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:51:19,941 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:51:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:51:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:51:19,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:51:19,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 05:51:19,993 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:51:19,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:51:19,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:51:19,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:51:19,994 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 4 states. [2018-10-27 05:51:20,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:51:20,191 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-10-27 05:51:20,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 05:51:20,194 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-10-27 05:51:20,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:51:20,195 INFO L225 Difference]: With dead ends: 63 [2018-10-27 05:51:20,195 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 05:51:20,195 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:51:20,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 05:51:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 05:51:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 05:51:20,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 05:51:20,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-10-27 05:51:20,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:51:20,196 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 05:51:20,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:51:20,197 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 05:51:20,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:51:20,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 05:51:20,287 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 05:51:20,287 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:51:20,287 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:51:20,287 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 05:51:20,287 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 05:51:20,287 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 05:51:20,288 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-10-27 05:51:20,288 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 32) no Hoare annotation was computed. [2018-10-27 05:51:20,288 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-10-27 05:51:20,288 INFO L421 ceAbstractionStarter]: At program point L27-2(lines 18 34) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 0 (+ main_~x~0 2147483648)) (<= main_~y~0 2147483647)) [2018-10-27 05:51:20,288 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 36) no Hoare annotation was computed. [2018-10-27 05:51:20,288 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-27 05:51:20,288 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-10-27 05:51:20,288 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 33) no Hoare annotation was computed. [2018-10-27 05:51:20,289 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 36) no Hoare annotation was computed. [2018-10-27 05:51:20,289 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-10-27 05:51:20,289 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-10-27 05:51:20,289 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-10-27 05:51:20,289 INFO L425 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-10-27 05:51:20,289 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 36) the Hoare annotation is: true [2018-10-27 05:51:20,289 INFO L425 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2018-10-27 05:51:20,289 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-10-27 05:51:20,289 INFO L425 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-10-27 05:51:20,290 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-27 05:51:20,290 INFO L425 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-10-27 05:51:20,290 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-10-27 05:51:20,290 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 25) no Hoare annotation was computed. [2018-10-27 05:51:20,290 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 34) no Hoare annotation was computed. [2018-10-27 05:51:20,290 INFO L425 ceAbstractionStarter]: For program point L18-3(lines 18 34) no Hoare annotation was computed. [2018-10-27 05:51:20,290 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-10-27 05:51:20,290 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-10-27 05:51:20,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:51:20 BoogieIcfgContainer [2018-10-27 05:51:20,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:51:20,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:51:20,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:51:20,302 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:51:20,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:51:18" (3/4) ... [2018-10-27 05:51:20,305 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:51:20,311 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 05:51:20,312 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 05:51:20,316 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-10-27 05:51:20,317 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 05:51:20,317 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 05:51:20,367 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5ca8d3f9-00eb-440e-8fbe-0643b20eef95/bin-2019/utaipan/witness.graphml [2018-10-27 05:51:20,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:51:20,369 INFO L168 Benchmark]: Toolchain (without parser) took 2477.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -112.4 MB). Peak memory consumption was 46.5 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:20,370 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:51:20,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.19 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 943.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:20,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.93 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:51:20,372 INFO L168 Benchmark]: Boogie Preprocessor took 27.18 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:20,373 INFO L168 Benchmark]: RCFGBuilder took 555.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:20,373 INFO L168 Benchmark]: TraceAbstraction took 1591.68 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: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:20,374 INFO L168 Benchmark]: Witness Printer took 66.13 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:51:20,379 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.19 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 943.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.93 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.18 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 555.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1591.68 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: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. * Witness Printer took 66.13 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: 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: 21]: 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 8 error locations. SAFE Result, 1.5s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 148 SDtfs, 78 SDslu, 61 SDs, 0 SdLazy, 85 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 16 HoareAnnotationTreeSize, 5 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 1604 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...