./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/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_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/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 0.1.23-635dfa2 [2018-12-02 10:52:43,271 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 10:52:43,271 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 10:52:43,278 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 10:52:43,278 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 10:52:43,278 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 10:52:43,279 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 10:52:43,279 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 10:52:43,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 10:52:43,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 10:52:43,281 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 10:52:43,281 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 10:52:43,282 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 10:52:43,282 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 10:52:43,283 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 10:52:43,283 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 10:52:43,283 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 10:52:43,284 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 10:52:43,285 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 10:52:43,286 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 10:52:43,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 10:52:43,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 10:52:43,288 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 10:52:43,288 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 10:52:43,288 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 10:52:43,288 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 10:52:43,289 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 10:52:43,289 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 10:52:43,290 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 10:52:43,290 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 10:52:43,290 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 10:52:43,291 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 10:52:43,291 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 10:52:43,291 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 10:52:43,291 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 10:52:43,292 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 10:52:43,292 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-02 10:52:43,299 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 10:52:43,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 10:52:43,299 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 10:52:43,299 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 10:52:43,300 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 10:52:43,300 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 10:52:43,300 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 10:52:43,300 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 10:52:43,300 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 10:52:43,300 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 10:52:43,300 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 10:52:43,300 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 10:52:43,300 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 10:52:43,301 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 10:52:43,301 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 10:52:43,301 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 10:52:43,301 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 10:52:43,301 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 10:52:43,301 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 10:52:43,301 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 10:52:43,301 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 10:52:43,301 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 10:52:43,301 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 10:52:43,302 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 10:52:43,302 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 10:52:43,302 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 10:52:43,302 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 10:52:43,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 10:52:43,302 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 10:52:43,302 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 10:52:43,302 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 10:52:43,302 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 10:52:43,302 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 10:52:43,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 10:52:43,303 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 10:52:43,303 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_60457cec-f804-4948-88c9-ec9ec0ead11d/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 [2018-12-02 10:52:43,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 10:52:43,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 10:52:43,330 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 10:52:43,330 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 10:52:43,331 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 10:52:43,331 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-12-02 10:52:43,366 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/data/9ca45c4a8/f9674d45949e4ec3964dce79278c0e47/FLAGc48c3ca74 [2018-12-02 10:52:43,699 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 10:52:43,699 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-12-02 10:52:43,703 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/data/9ca45c4a8/f9674d45949e4ec3964dce79278c0e47/FLAGc48c3ca74 [2018-12-02 10:52:43,711 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/data/9ca45c4a8/f9674d45949e4ec3964dce79278c0e47 [2018-12-02 10:52:43,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 10:52:43,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 10:52:43,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 10:52:43,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 10:52:43,716 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 10:52:43,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3033e242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43, skipping insertion in model container [2018-12-02 10:52:43,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 10:52:43,732 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 10:52:43,814 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 10:52:43,816 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 10:52:43,826 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 10:52:43,834 INFO L195 MainTranslator]: Completed translation [2018-12-02 10:52:43,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43 WrapperNode [2018-12-02 10:52:43,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 10:52:43,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 10:52:43,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 10:52:43,835 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 10:52:43,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 10:52:43,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 10:52:43,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 10:52:43,847 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 10:52:43,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... [2018-12-02 10:52:43,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 10:52:43,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 10:52:43,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 10:52:43,859 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 10:52:43,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/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 [2018-12-02 10:52:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 10:52:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 10:52:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 10:52:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 10:52:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 10:52:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 10:52:44,014 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 10:52:44,014 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 10:52:44,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:52:44 BoogieIcfgContainer [2018-12-02 10:52:44,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 10:52:44,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 10:52:44,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 10:52:44,017 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 10:52:44,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:52:43" (1/3) ... [2018-12-02 10:52:44,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122247ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:52:44, skipping insertion in model container [2018-12-02 10:52:44,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:52:43" (2/3) ... [2018-12-02 10:52:44,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122247ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:52:44, skipping insertion in model container [2018-12-02 10:52:44,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:52:44" (3/3) ... [2018-12-02 10:52:44,019 INFO L112 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-12-02 10:52:44,025 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 10:52:44,030 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-12-02 10:52:44,039 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-12-02 10:52:44,056 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 10:52:44,056 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 10:52:44,056 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 10:52:44,056 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 10:52:44,057 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 10:52:44,057 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 10:52:44,057 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 10:52:44,057 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 10:52:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-02 10:52:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 10:52:44,070 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:52:44,070 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 10:52:44,072 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 10:52:44,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:52:44,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1648261274, now seen corresponding path program 1 times [2018-12-02 10:52:44,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:52:44,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:52:44,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,109 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:52:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:52:44,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:52:44,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:52:44,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 10:52:44,159 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:52:44,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 10:52:44,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 10:52:44,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 10:52:44,171 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-12-02 10:52:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:52:44,207 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-12-02 10:52:44,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 10:52:44,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-02 10:52:44,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:52:44,215 INFO L225 Difference]: With dead ends: 48 [2018-12-02 10:52:44,215 INFO L226 Difference]: Without dead ends: 34 [2018-12-02 10:52:44,217 INFO L631 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 [2018-12-02 10:52:44,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-02 10:52:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-12-02 10:52:44,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-02 10:52:44,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2018-12-02 10:52:44,238 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 9 [2018-12-02 10:52:44,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:52:44,238 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2018-12-02 10:52:44,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 10:52:44,238 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2018-12-02 10:52:44,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 10:52:44,239 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:52:44,239 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 10:52:44,239 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 10:52:44,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:52:44,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1648261466, now seen corresponding path program 1 times [2018-12-02 10:52:44,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:52:44,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:52:44,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,241 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:52:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:52:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:52:44,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:52:44,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 10:52:44,253 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:52:44,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 10:52:44,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 10:52:44,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 10:52:44,254 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 3 states. [2018-12-02 10:52:44,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:52:44,270 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2018-12-02 10:52:44,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 10:52:44,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-02 10:52:44,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:52:44,270 INFO L225 Difference]: With dead ends: 32 [2018-12-02 10:52:44,271 INFO L226 Difference]: Without dead ends: 30 [2018-12-02 10:52:44,271 INFO L631 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 [2018-12-02 10:52:44,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-02 10:52:44,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-02 10:52:44,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-02 10:52:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2018-12-02 10:52:44,274 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 9 [2018-12-02 10:52:44,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:52:44,274 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2018-12-02 10:52:44,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 10:52:44,275 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2018-12-02 10:52:44,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 10:52:44,275 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:52:44,275 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 10:52:44,275 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 10:52:44,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:52:44,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1648277162, now seen corresponding path program 1 times [2018-12-02 10:52:44,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:52:44,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:52:44,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,277 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:52:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:52:44,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:52:44,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:52:44,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 10:52:44,288 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:52:44,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 10:52:44,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 10:52:44,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 10:52:44,288 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 3 states. [2018-12-02 10:52:44,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:52:44,305 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2018-12-02 10:52:44,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 10:52:44,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-02 10:52:44,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:52:44,306 INFO L225 Difference]: With dead ends: 30 [2018-12-02 10:52:44,306 INFO L226 Difference]: Without dead ends: 29 [2018-12-02 10:52:44,306 INFO L631 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 [2018-12-02 10:52:44,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-02 10:52:44,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-12-02 10:52:44,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-02 10:52:44,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2018-12-02 10:52:44,309 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 9 [2018-12-02 10:52:44,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:52:44,309 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2018-12-02 10:52:44,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 10:52:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2018-12-02 10:52:44,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 10:52:44,310 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:52:44,310 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 10:52:44,310 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 10:52:44,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:52:44,310 INFO L82 PathProgramCache]: Analyzing trace with hash -443508005, now seen corresponding path program 1 times [2018-12-02 10:52:44,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:52:44,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:52:44,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,312 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:52:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:52:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:52:44,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:52:44,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 10:52:44,323 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:52:44,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 10:52:44,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 10:52:44,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 10:52:44,323 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand 3 states. [2018-12-02 10:52:44,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:52:44,344 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2018-12-02 10:52:44,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 10:52:44,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-02 10:52:44,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:52:44,345 INFO L225 Difference]: With dead ends: 56 [2018-12-02 10:52:44,345 INFO L226 Difference]: Without dead ends: 32 [2018-12-02 10:52:44,346 INFO L631 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 [2018-12-02 10:52:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-02 10:52:44,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-02 10:52:44,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-02 10:52:44,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2018-12-02 10:52:44,350 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 10 [2018-12-02 10:52:44,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:52:44,350 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2018-12-02 10:52:44,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 10:52:44,350 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2018-12-02 10:52:44,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 10:52:44,350 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:52:44,351 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 10:52:44,351 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 10:52:44,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:52:44,351 INFO L82 PathProgramCache]: Analyzing trace with hash -443502047, now seen corresponding path program 1 times [2018-12-02 10:52:44,351 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:52:44,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:52:44,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,353 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:52:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:52:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:52:44,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:52:44,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 10:52:44,366 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:52:44,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 10:52:44,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 10:52:44,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 10:52:44,367 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 3 states. [2018-12-02 10:52:44,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:52:44,382 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2018-12-02 10:52:44,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 10:52:44,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-02 10:52:44,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:52:44,383 INFO L225 Difference]: With dead ends: 33 [2018-12-02 10:52:44,384 INFO L226 Difference]: Without dead ends: 31 [2018-12-02 10:52:44,384 INFO L631 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 [2018-12-02 10:52:44,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-02 10:52:44,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-12-02 10:52:44,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-02 10:52:44,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2018-12-02 10:52:44,388 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 10 [2018-12-02 10:52:44,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:52:44,388 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2018-12-02 10:52:44,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 10:52:44,388 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-12-02 10:52:44,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 10:52:44,388 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:52:44,388 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 10:52:44,389 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 10:52:44,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:52:44,389 INFO L82 PathProgramCache]: Analyzing trace with hash -443015461, now seen corresponding path program 1 times [2018-12-02 10:52:44,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:52:44,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:52:44,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,390 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:52:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:52:44,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:52:44,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:52:44,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 10:52:44,406 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:52:44,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 10:52:44,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 10:52:44,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 10:52:44,406 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 3 states. [2018-12-02 10:52:44,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:52:44,418 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-12-02 10:52:44,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 10:52:44,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-02 10:52:44,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:52:44,419 INFO L225 Difference]: With dead ends: 30 [2018-12-02 10:52:44,419 INFO L226 Difference]: Without dead ends: 29 [2018-12-02 10:52:44,419 INFO L631 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 [2018-12-02 10:52:44,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-02 10:52:44,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-12-02 10:52:44,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-02 10:52:44,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2018-12-02 10:52:44,422 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2018-12-02 10:52:44,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:52:44,422 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-12-02 10:52:44,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 10:52:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-12-02 10:52:44,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 10:52:44,422 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 10:52:44,422 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 10:52:44,423 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 10:52:44,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:52:44,423 INFO L82 PathProgramCache]: Analyzing trace with hash 209418272, now seen corresponding path program 1 times [2018-12-02 10:52:44,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 10:52:44,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:52:44,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:52:44,424 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 10:52:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:52:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:52:44,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 10:52:44,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 10:52:44,445 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 10:52:44,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 10:52:44,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 10:52:44,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 10:52:44,445 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 4 states. [2018-12-02 10:52:44,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 10:52:44,469 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2018-12-02 10:52:44,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 10:52:44,469 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-12-02 10:52:44,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 10:52:44,470 INFO L225 Difference]: With dead ends: 54 [2018-12-02 10:52:44,470 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 10:52:44,470 INFO L631 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 [2018-12-02 10:52:44,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 10:52:44,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 10:52:44,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 10:52:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 10:52:44,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-12-02 10:52:44,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 10:52:44,471 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 10:52:44,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 10:52:44,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 10:52:44,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 10:52:44,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 10:52:44,506 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 10:52:44,506 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 10:52:44,506 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 10:52:44,506 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 10:52:44,506 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 10:52:44,506 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 10:52:44,506 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-12-02 10:52:44,506 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 32) no Hoare annotation was computed. [2018-12-02 10:52:44,506 INFO L444 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)) [2018-12-02 10:52:44,506 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 36) no Hoare annotation was computed. [2018-12-02 10:52:44,506 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-12-02 10:52:44,506 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 33) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 36) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 36) the Hoare annotation is: true [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-12-02 10:52:44,507 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 25) no Hoare annotation was computed. [2018-12-02 10:52:44,508 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-02 10:52:44,508 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-12-02 10:52:44,508 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 34) no Hoare annotation was computed. [2018-12-02 10:52:44,508 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-12-02 10:52:44,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:52:44 BoogieIcfgContainer [2018-12-02 10:52:44,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 10:52:44,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 10:52:44,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 10:52:44,516 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 10:52:44,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:52:44" (3/4) ... [2018-12-02 10:52:44,518 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 10:52:44,523 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 10:52:44,523 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 10:52:44,526 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 10:52:44,526 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 10:52:44,526 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 10:52:44,556 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_60457cec-f804-4948-88c9-ec9ec0ead11d/bin-2019/utaipan/witness.graphml [2018-12-02 10:52:44,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 10:52:44,557 INFO L168 Benchmark]: Toolchain (without parser) took 844.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 952.5 MB in the beginning and 1.0 GB in the end (delta: -68.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. [2018-12-02 10:52:44,559 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 10:52:44,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.02 ms. Allocated memory is still 1.0 GB. Free memory was 952.5 MB in the beginning and 941.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-02 10:52:44,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.85 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 10:52:44,559 INFO L168 Benchmark]: Boogie Preprocessor took 12.09 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 10:52:44,560 INFO L168 Benchmark]: RCFGBuilder took 156.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-12-02 10:52:44,560 INFO L168 Benchmark]: TraceAbstraction took 500.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.9 MB). Peak memory consumption was 69.9 MB. Max. memory is 11.5 GB. [2018-12-02 10:52:44,560 INFO L168 Benchmark]: Witness Printer took 41.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 10:52:44,562 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.02 ms. Allocated memory is still 1.0 GB. Free memory was 952.5 MB in the beginning and 941.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.85 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.09 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 156.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 500.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.9 MB). Peak memory consumption was 69.9 MB. Max. memory is 11.5 GB. * Witness Printer took 41.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: 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: 30]: 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: 24]: 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: 21]: 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, 30 locations, 8 error locations. SAFE Result, 0.4s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 137 SDtfs, 73 SDslu, 63 SDs, 0 SdLazy, 91 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=1, 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, 3 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, 0.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 1252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...