./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01_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_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/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 05602efd0716c9bc46b30aae12cb2e2448644d24 ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 06:23:38,365 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 06:23:38,366 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 06:23:38,372 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 06:23:38,372 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 06:23:38,373 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 06:23:38,373 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 06:23:38,374 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 06:23:38,375 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 06:23:38,375 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 06:23:38,376 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 06:23:38,376 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 06:23:38,376 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 06:23:38,377 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 06:23:38,377 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 06:23:38,378 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 06:23:38,378 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 06:23:38,379 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 06:23:38,380 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 06:23:38,381 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 06:23:38,381 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 06:23:38,382 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 06:23:38,383 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 06:23:38,383 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 06:23:38,383 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 06:23:38,383 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 06:23:38,384 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 06:23:38,384 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 06:23:38,385 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 06:23:38,385 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 06:23:38,385 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 06:23:38,386 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 06:23:38,386 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 06:23:38,386 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 06:23:38,386 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 06:23:38,387 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 06:23:38,387 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-03 06:23:38,394 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 06:23:38,394 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 06:23:38,395 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 06:23:38,395 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 06:23:38,395 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 06:23:38,395 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 06:23:38,395 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 06:23:38,395 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 06:23:38,395 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 06:23:38,395 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 06:23:38,395 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 06:23:38,395 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 06:23:38,396 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 06:23:38,396 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 06:23:38,396 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-03 06:23:38,396 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 06:23:38,396 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 06:23:38,396 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 06:23:38,396 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 06:23:38,396 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 06:23:38,397 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-03 06:23:38,397 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 06:23:38,397 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 06:23:38,397 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 06:23:38,397 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 06:23:38,397 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 06:23:38,397 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 06:23:38,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 06:23:38,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 06:23:38,397 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 06:23:38,397 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 06:23:38,398 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 06:23:38,398 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 06:23:38,398 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 06:23:38,398 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 06:23:38,398 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_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/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 -> 05602efd0716c9bc46b30aae12cb2e2448644d24 [2018-12-03 06:23:38,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 06:23:38,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 06:23:38,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 06:23:38,425 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 06:23:38,425 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 06:23:38,425 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01_true-termination_true-no-overflow.c [2018-12-03 06:23:38,459 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/data/35c773df1/e06c8096504e4192a97fe499eab90841/FLAG6b502c81d [2018-12-03 06:23:38,787 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 06:23:38,788 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01_true-termination_true-no-overflow.c [2018-12-03 06:23:38,791 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/data/35c773df1/e06c8096504e4192a97fe499eab90841/FLAG6b502c81d [2018-12-03 06:23:38,799 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/data/35c773df1/e06c8096504e4192a97fe499eab90841 [2018-12-03 06:23:38,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 06:23:38,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 06:23:38,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 06:23:38,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 06:23:38,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 06:23:38,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2817da2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38, skipping insertion in model container [2018-12-03 06:23:38,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 06:23:38,819 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 06:23:38,897 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:23:38,899 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 06:23:38,907 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:23:38,915 INFO L195 MainTranslator]: Completed translation [2018-12-03 06:23:38,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38 WrapperNode [2018-12-03 06:23:38,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 06:23:38,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 06:23:38,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 06:23:38,916 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 06:23:38,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 06:23:38,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 06:23:38,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 06:23:38,927 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 06:23:38,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... [2018-12-03 06:23:38,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 06:23:38,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 06:23:38,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 06:23:38,938 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 06:23:38,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/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 [2018-12-03 06:23:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 06:23:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 06:23:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 06:23:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 06:23:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 06:23:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 06:23:39,070 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 06:23:39,070 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 06:23:39,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:23:39 BoogieIcfgContainer [2018-12-03 06:23:39,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 06:23:39,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 06:23:39,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 06:23:39,073 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 06:23:39,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 06:23:38" (1/3) ... [2018-12-03 06:23:39,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e197ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:23:39, skipping insertion in model container [2018-12-03 06:23:39,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:23:38" (2/3) ... [2018-12-03 06:23:39,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e197ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:23:39, skipping insertion in model container [2018-12-03 06:23:39,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:23:39" (3/3) ... [2018-12-03 06:23:39,075 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex3.01_true-termination_true-no-overflow.c [2018-12-03 06:23:39,080 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 06:23:39,084 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-03 06:23:39,094 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-03 06:23:39,115 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 06:23:39,116 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 06:23:39,116 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 06:23:39,116 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 06:23:39,116 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 06:23:39,116 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 06:23:39,116 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 06:23:39,116 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 06:23:39,130 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-03 06:23:39,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-03 06:23:39,135 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:23:39,136 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:23:39,137 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 06:23:39,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:23:39,140 INFO L82 PathProgramCache]: Analyzing trace with hash 703472058, now seen corresponding path program 1 times [2018-12-03 06:23:39,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:23:39,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:23:39,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:23:39,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:23:39,176 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:23:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:23:39,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:23:39,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:23:39,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 06:23:39,230 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:23:39,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 06:23:39,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 06:23:39,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 06:23:39,242 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2018-12-03 06:23:39,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:23:39,280 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2018-12-03 06:23:39,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 06:23:39,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-12-03 06:23:39,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:23:39,286 INFO L225 Difference]: With dead ends: 28 [2018-12-03 06:23:39,286 INFO L226 Difference]: Without dead ends: 14 [2018-12-03 06:23:39,288 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 06:23:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-03 06:23:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2018-12-03 06:23:39,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-03 06:23:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-03 06:23:39,310 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2018-12-03 06:23:39,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:23:39,310 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-03 06:23:39,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 06:23:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-03 06:23:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-03 06:23:39,310 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:23:39,310 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:23:39,311 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 06:23:39,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:23:39,311 INFO L82 PathProgramCache]: Analyzing trace with hash 332797365, now seen corresponding path program 1 times [2018-12-03 06:23:39,311 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:23:39,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:23:39,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:23:39,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:23:39,313 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:23:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:23:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:23:39,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:23:39,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 06:23:39,332 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:23:39,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 06:23:39,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 06:23:39,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 06:23:39,334 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2018-12-03 06:23:39,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:23:39,346 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-12-03 06:23:39,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 06:23:39,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-03 06:23:39,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:23:39,347 INFO L225 Difference]: With dead ends: 12 [2018-12-03 06:23:39,347 INFO L226 Difference]: Without dead ends: 11 [2018-12-03 06:23:39,347 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 [2018-12-03 06:23:39,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-03 06:23:39,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-03 06:23:39,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-03 06:23:39,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-12-03 06:23:39,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-12-03 06:23:39,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:23:39,349 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-12-03 06:23:39,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 06:23:39,349 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-12-03 06:23:39,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 06:23:39,349 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:23:39,350 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:23:39,350 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 06:23:39,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:23:39,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1990689239, now seen corresponding path program 1 times [2018-12-03 06:23:39,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:23:39,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:23:39,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:23:39,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:23:39,351 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:23:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:23:39,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:23:39,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:23:39,380 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 06:23:39,381 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-12-03 06:23:39,382 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [14], [15], [17], [23], [24], [25] [2018-12-03 06:23:39,401 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 06:23:39,401 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 06:23:39,459 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 06:23:39,460 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Performed 30 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 6 variables. [2018-12-03 06:23:39,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:23:39,467 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 06:23:39,467 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:23:39,467 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 06:23:39,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:23:39,474 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 06:23:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:23:39,485 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:23:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:23:39,497 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 06:23:39,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:23:39,525 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 06:23:39,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2018-12-03 06:23:39,525 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 06:23:39,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 06:23:39,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 06:23:39,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 06:23:39,526 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 5 states. [2018-12-03 06:23:39,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:23:39,546 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-12-03 06:23:39,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 06:23:39,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-12-03 06:23:39,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:23:39,547 INFO L225 Difference]: With dead ends: 11 [2018-12-03 06:23:39,547 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 06:23:39,547 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:23:39,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 06:23:39,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 06:23:39,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 06:23:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 06:23:39,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-12-03 06:23:39,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:23:39,548 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 06:23:39,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 06:23:39,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 06:23:39,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 06:23:39,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 06:23:39,566 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-03 06:23:39,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 06:23:39,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 06:23:39,567 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 06:23:39,567 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 06:23:39,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 06:23:39,567 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-12-03 06:23:39,567 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-12-03 06:23:39,567 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 22 32) the Hoare annotation is: true [2018-12-03 06:23:39,567 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-03 06:23:39,567 INFO L448 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-12-03 06:23:39,567 INFO L444 ceAbstractionStarter]: At program point L27-2(lines 27 30) the Hoare annotation is: (and (<= main_~z~0 2147483647) (<= 0 (+ main_~x~0 2147483648)) (<= main_~y~0 2147483647)) [2018-12-03 06:23:39,567 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 22 32) no Hoare annotation was computed. [2018-12-03 06:23:39,567 INFO L448 ceAbstractionStarter]: For program point L27-3(lines 27 30) no Hoare annotation was computed. [2018-12-03 06:23:39,568 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 22 32) no Hoare annotation was computed. [2018-12-03 06:23:39,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 06:23:39 BoogieIcfgContainer [2018-12-03 06:23:39,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 06:23:39,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 06:23:39,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 06:23:39,575 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 06:23:39,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:23:39" (3/4) ... [2018-12-03 06:23:39,577 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 06:23:39,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 06:23:39,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 06:23:39,582 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-03 06:23:39,582 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 06:23:39,582 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 06:23:39,605 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4c1dabf2-6369-4e8c-abd1-be16de6a7be7/bin-2019/utaipan/witness.graphml [2018-12-03 06:23:39,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 06:23:39,605 INFO L168 Benchmark]: Toolchain (without parser) took 803.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 962.4 MB in the beginning and 1.0 GB in the end (delta: -57.0 MB). Peak memory consumption was 47.3 MB. Max. memory is 11.5 GB. [2018-12-03 06:23:39,606 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:23:39,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 113.07 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 06:23:39,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.27 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:23:39,607 INFO L168 Benchmark]: Boogie Preprocessor took 10.79 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:23:39,607 INFO L168 Benchmark]: RCFGBuilder took 132.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -129.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-03 06:23:39,607 INFO L168 Benchmark]: TraceAbstraction took 503.64 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: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. [2018-12-03 06:23:39,607 INFO L168 Benchmark]: Witness Printer took 30.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:23:39,609 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 113.07 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.27 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.79 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 132.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -129.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 503.64 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: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. * Witness Printer took 30.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (z <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 2 error locations. SAFE Result, 0.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 13 SDslu, 34 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 16 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 706 SizeOfPredicates, 4 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...