./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_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_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/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 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 15:43:15,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:43:15,055 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:43:15,061 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:43:15,062 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:43:15,062 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:43:15,063 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:43:15,064 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:43:15,064 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:43:15,065 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:43:15,065 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:43:15,065 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:43:15,066 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:43:15,066 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:43:15,067 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:43:15,067 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:43:15,067 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:43:15,068 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:43:15,069 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:43:15,070 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:43:15,070 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:43:15,071 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:43:15,072 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:43:15,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:43:15,072 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:43:15,073 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:43:15,073 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:43:15,074 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:43:15,074 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:43:15,074 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:43:15,075 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:43:15,075 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:43:15,075 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:43:15,075 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:43:15,076 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:43:15,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:43:15,076 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-08 15:43:15,083 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:43:15,083 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:43:15,084 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 15:43:15,084 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 15:43:15,084 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 15:43:15,084 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 15:43:15,084 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 15:43:15,084 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 15:43:15,084 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 15:43:15,084 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 15:43:15,085 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 15:43:15,085 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 15:43:15,085 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 15:43:15,085 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:43:15,085 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 15:43:15,085 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 15:43:15,085 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:43:15,085 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 15:43:15,086 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:43:15,086 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 15:43:15,086 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-08 15:43:15,086 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:43:15,086 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 15:43:15,086 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:43:15,086 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:43:15,086 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:43:15,086 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 15:43:15,086 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:43:15,087 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:43:15,087 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:43:15,087 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 15:43:15,087 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 15:43:15,087 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:43:15,087 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 15:43:15,087 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 15:43:15,087 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_ef333f13-daf4-497d-a094-334747c6d610/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 -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2018-12-08 15:43:15,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:43:15,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:43:15,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:43:15,113 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:43:15,113 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:43:15,114 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-12-08 15:43:15,149 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/data/66124e512/812c7fb3e74c4854a45504be6f5f60f0/FLAG2547d4194 [2018-12-08 15:43:15,533 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:43:15,534 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-12-08 15:43:15,537 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/data/66124e512/812c7fb3e74c4854a45504be6f5f60f0/FLAG2547d4194 [2018-12-08 15:43:15,545 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/data/66124e512/812c7fb3e74c4854a45504be6f5f60f0 [2018-12-08 15:43:15,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:43:15,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:43:15,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:43:15,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:43:15,551 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:43:15,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753418dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15, skipping insertion in model container [2018-12-08 15:43:15,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:43:15,566 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:43:15,648 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:43:15,650 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:43:15,659 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:43:15,666 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:43:15,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15 WrapperNode [2018-12-08 15:43:15,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:43:15,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:43:15,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:43:15,667 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:43:15,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:43:15,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:43:15,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:43:15,679 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:43:15,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... [2018-12-08 15:43:15,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:43:15,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:43:15,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:43:15,692 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:43:15,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/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 [2018-12-08 15:43:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 15:43:15,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 15:43:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:43:15,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:43:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 15:43:15,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 15:43:15,841 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:43:15,841 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 15:43:15,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:43:15 BoogieIcfgContainer [2018-12-08 15:43:15,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:43:15,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 15:43:15,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 15:43:15,844 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 15:43:15,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:43:15" (1/3) ... [2018-12-08 15:43:15,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356f1cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:43:15, skipping insertion in model container [2018-12-08 15:43:15,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:43:15" (2/3) ... [2018-12-08 15:43:15,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356f1cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:43:15, skipping insertion in model container [2018-12-08 15:43:15,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:43:15" (3/3) ... [2018-12-08 15:43:15,846 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-12-08 15:43:15,851 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 15:43:15,855 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-08 15:43:15,864 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-08 15:43:15,881 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 15:43:15,881 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 15:43:15,881 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 15:43:15,881 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:43:15,881 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:43:15,881 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 15:43:15,882 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:43:15,882 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 15:43:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-12-08 15:43:15,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 15:43:15,899 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:43:15,900 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:43:15,901 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 15:43:15,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:43:15,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165426, now seen corresponding path program 1 times [2018-12-08 15:43:15,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:43:15,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:15,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:43:15,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:15,937 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:43:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:43:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:43:15,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:43:15,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 15:43:15,982 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:43:15,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:43:15,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:43:15,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:43:15,994 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-12-08 15:43:16,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:43:16,015 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2018-12-08 15:43:16,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:43:16,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-08 15:43:16,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:43:16,021 INFO L225 Difference]: With dead ends: 34 [2018-12-08 15:43:16,022 INFO L226 Difference]: Without dead ends: 14 [2018-12-08 15:43:16,023 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 [2018-12-08 15:43:16,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-08 15:43:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-08 15:43:16,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-08 15:43:16,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-12-08 15:43:16,044 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2018-12-08 15:43:16,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:43:16,044 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-12-08 15:43:16,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:43:16,044 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-12-08 15:43:16,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 15:43:16,044 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:43:16,044 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:43:16,045 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 15:43:16,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:43:16,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165371, now seen corresponding path program 1 times [2018-12-08 15:43:16,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:43:16,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:16,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:43:16,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:16,046 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:43:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:43:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:43:16,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:43:16,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 15:43:16,064 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:43:16,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:43:16,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:43:16,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:43:16,065 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-12-08 15:43:16,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:43:16,080 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2018-12-08 15:43:16,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:43:16,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-08 15:43:16,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:43:16,081 INFO L225 Difference]: With dead ends: 22 [2018-12-08 15:43:16,081 INFO L226 Difference]: Without dead ends: 21 [2018-12-08 15:43:16,081 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 [2018-12-08 15:43:16,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-08 15:43:16,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2018-12-08 15:43:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-08 15:43:16,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-12-08 15:43:16,084 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2018-12-08 15:43:16,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:43:16,084 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-12-08 15:43:16,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:43:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-08 15:43:16,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 15:43:16,084 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:43:16,085 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:43:16,085 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 15:43:16,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:43:16,085 INFO L82 PathProgramCache]: Analyzing trace with hash 350544817, now seen corresponding path program 1 times [2018-12-08 15:43:16,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:43:16,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:16,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:43:16,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:16,086 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:43:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:43:16,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:43:16,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:43:16,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 15:43:16,100 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:43:16,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:43:16,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:43:16,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:43:16,100 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 3 states. [2018-12-08 15:43:16,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:43:16,110 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-12-08 15:43:16,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:43:16,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-08 15:43:16,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:43:16,110 INFO L225 Difference]: With dead ends: 16 [2018-12-08 15:43:16,111 INFO L226 Difference]: Without dead ends: 15 [2018-12-08 15:43:16,111 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 [2018-12-08 15:43:16,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-08 15:43:16,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-08 15:43:16,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-08 15:43:16,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-12-08 15:43:16,113 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2018-12-08 15:43:16,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:43:16,113 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-12-08 15:43:16,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:43:16,113 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-08 15:43:16,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 15:43:16,113 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:43:16,113 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:43:16,114 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 15:43:16,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:43:16,114 INFO L82 PathProgramCache]: Analyzing trace with hash 350546515, now seen corresponding path program 1 times [2018-12-08 15:43:16,114 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:43:16,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:16,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:43:16,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:16,115 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:43:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:43:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:43:16,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:43:16,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 15:43:16,125 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:43:16,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:43:16,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:43:16,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:43:16,125 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2018-12-08 15:43:16,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:43:16,135 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-12-08 15:43:16,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:43:16,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-08 15:43:16,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:43:16,135 INFO L225 Difference]: With dead ends: 16 [2018-12-08 15:43:16,135 INFO L226 Difference]: Without dead ends: 15 [2018-12-08 15:43:16,135 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 [2018-12-08 15:43:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-08 15:43:16,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2018-12-08 15:43:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-08 15:43:16,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-12-08 15:43:16,138 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9 [2018-12-08 15:43:16,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:43:16,138 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-12-08 15:43:16,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:43:16,138 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-08 15:43:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 15:43:16,138 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:43:16,138 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:43:16,138 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 15:43:16,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:43:16,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1867753493, now seen corresponding path program 1 times [2018-12-08 15:43:16,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:43:16,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:16,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:43:16,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:43:16,140 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:43:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:43:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 15:43:16,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:43:16,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 15:43:16,149 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:43:16,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:43:16,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:43:16,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:43:16,150 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2018-12-08 15:43:16,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:43:16,160 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-12-08 15:43:16,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:43:16,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-08 15:43:16,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:43:16,160 INFO L225 Difference]: With dead ends: 17 [2018-12-08 15:43:16,161 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 15:43:16,161 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 [2018-12-08 15:43:16,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 15:43:16,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 15:43:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 15:43:16,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 15:43:16,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-12-08 15:43:16,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:43:16,162 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 15:43:16,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:43:16,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 15:43:16,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 15:43:16,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 15:43:16,181 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 15:43:16,181 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 15:43:16,181 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 15:43:16,181 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 15:43:16,181 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 15:43:16,181 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 15:43:16,181 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 0 main_~j~0) (<= 0 (+ main_~i~0 2147483648)) (<= main_~i~0 4)) [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 23) the Hoare annotation is: (<= 0 (+ main_~i~0 2147483648)) [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-08 15:43:16,182 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-08 15:43:16,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:43:16 BoogieIcfgContainer [2018-12-08 15:43:16,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 15:43:16,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:43:16,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:43:16,190 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:43:16,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:43:15" (3/4) ... [2018-12-08 15:43:16,192 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 15:43:16,196 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 15:43:16,196 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 15:43:16,198 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 15:43:16,198 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 15:43:16,198 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 15:43:16,221 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ef333f13-daf4-497d-a094-334747c6d610/bin-2019/utaipan/witness.graphml [2018-12-08 15:43:16,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:43:16,222 INFO L168 Benchmark]: Toolchain (without parser) took 674.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 950.9 MB in the beginning and 1.0 GB in the end (delta: -86.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2018-12-08 15:43:16,223 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:43:16,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.46 ms. Allocated memory is still 1.0 GB. Free memory was 950.9 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:43:16,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.89 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:43:16,224 INFO L168 Benchmark]: Boogie Preprocessor took 12.50 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:43:16,224 INFO L168 Benchmark]: RCFGBuilder took 149.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:43:16,224 INFO L168 Benchmark]: TraceAbstraction took 347.51 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2018-12-08 15:43:16,224 INFO L168 Benchmark]: Witness Printer took 31.80 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:43:16,226 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 976.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 118.46 ms. Allocated memory is still 1.0 GB. Free memory was 950.9 MB in the beginning and 940.2 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 11.89 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.50 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 347.51 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. * Witness Printer took 31.80 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (0 <= j && 0 <= i + 2147483648) && i <= 4 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 37 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 21 HoareAnnotationTreeSize, 6 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...