./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/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 413fc6a41e04b7b618ff9ab274418b4a8dcf040d ...................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:02:26,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:02:26,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:02:26,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:02:26,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:02:26,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:02:26,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:02:26,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:02:26,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:02:26,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:02:26,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:02:26,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:02:26,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:02:26,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:02:26,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:02:26,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:02:26,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:02:26,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:02:26,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:02:26,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:02:26,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:02:26,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:02:26,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:02:26,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:02:26,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:02:26,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:02:26,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:02:26,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:02:26,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:02:26,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:02:26,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:02:26,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:02:26,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:02:26,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:02:26,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:02:26,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:02:26,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:02:26,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:02:26,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:02:26,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:02:26,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:02:26,459 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-12-07 14:02:26,469 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:02:26,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:02:26,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:02:26,469 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:02:26,469 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:02:26,470 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:02:26,470 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:02:26,470 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:02:26,470 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:02:26,470 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:02:26,470 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:02:26,470 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:02:26,470 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:02:26,470 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:02:26,470 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:02:26,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:02:26,471 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:02:26,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:02:26,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:02:26,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:02:26,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:02:26,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:02:26,472 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 14:02:26,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:02:26,472 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:02:26,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:02:26,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:02:26,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:02:26,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:02:26,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:02:26,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:02:26,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:02:26,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:02:26,473 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:02:26,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:02:26,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:02:26,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:02:26,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:02:26,474 INFO L138 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/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/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 -> 413fc6a41e04b7b618ff9ab274418b4a8dcf040d [2019-12-07 14:02:26,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:02:26,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:02:26,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:02:26,589 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:02:26,590 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:02:26,590 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2019-12-07 14:02:26,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/data/4a988eee1/66500f69a26d47bf8796d3f10421c54a/FLAG8978a1bff [2019-12-07 14:02:26,952 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:02:26,953 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2019-12-07 14:02:26,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/data/4a988eee1/66500f69a26d47bf8796d3f10421c54a/FLAG8978a1bff [2019-12-07 14:02:26,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/data/4a988eee1/66500f69a26d47bf8796d3f10421c54a [2019-12-07 14:02:26,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:02:26,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:02:26,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:02:26,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:02:26,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:02:26,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:02:26" (1/1) ... [2019-12-07 14:02:26,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354778c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:26, skipping insertion in model container [2019-12-07 14:02:26,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:02:26" (1/1) ... [2019-12-07 14:02:26,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:02:26,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:02:27,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:02:27,092 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:02:27,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:02:27,143 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:02:27,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27 WrapperNode [2019-12-07 14:02:27,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:02:27,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:02:27,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:02:27,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:02:27,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... [2019-12-07 14:02:27,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... [2019-12-07 14:02:27,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:02:27,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:02:27,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:02:27,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:02:27,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... [2019-12-07 14:02:27,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... [2019-12-07 14:02:27,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... [2019-12-07 14:02:27,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... [2019-12-07 14:02:27,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... [2019-12-07 14:02:27,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... [2019-12-07 14:02:27,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... [2019-12-07 14:02:27,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:02:27,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:02:27,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:02:27,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:02:27,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/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 [2019-12-07 14:02:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:02:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:02:27,319 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:02:27,319 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 14:02:27,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:02:27 BoogieIcfgContainer [2019-12-07 14:02:27,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:02:27,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:02:27,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:02:27,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:02:27,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:02:26" (1/3) ... [2019-12-07 14:02:27,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d02e566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:02:27, skipping insertion in model container [2019-12-07 14:02:27,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:02:27" (2/3) ... [2019-12-07 14:02:27,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d02e566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:02:27, skipping insertion in model container [2019-12-07 14:02:27,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:02:27" (3/3) ... [2019-12-07 14:02:27,324 INFO L109 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b.c [2019-12-07 14:02:27,331 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:02:27,335 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 14:02:27,342 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 14:02:27,357 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:02:27,357 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:02:27,357 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:02:27,357 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:02:27,357 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:02:27,357 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:02:27,357 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:02:27,357 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:02:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 14:02:27,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 14:02:27,369 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:27,370 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 14:02:27,370 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:02:27,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:27,374 INFO L82 PathProgramCache]: Analyzing trace with hash 29684906, now seen corresponding path program 1 times [2019-12-07 14:02:27,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:02:27,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657242990] [2019-12-07 14:02:27,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:02:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:27,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:27,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657242990] [2019-12-07 14:02:27,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:27,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:02:27,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071677998] [2019-12-07 14:02:27,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:02:27,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:02:27,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:02:27,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:02:27,521 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2019-12-07 14:02:27,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:27,573 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-12-07 14:02:27,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:02:27,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-12-07 14:02:27,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:27,580 INFO L225 Difference]: With dead ends: 20 [2019-12-07 14:02:27,580 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 14:02:27,582 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:02:27,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 14:02:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2019-12-07 14:02:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 14:02:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-07 14:02:27,604 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2019-12-07 14:02:27,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:27,604 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 14:02:27,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:02:27,604 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-07 14:02:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 14:02:27,605 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:27,605 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:02:27,605 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:02:27,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:27,605 INFO L82 PathProgramCache]: Analyzing trace with hash 920232138, now seen corresponding path program 1 times [2019-12-07 14:02:27,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:02:27,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134127715] [2019-12-07 14:02:27,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:02:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:27,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134127715] [2019-12-07 14:02:27,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:02:27,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:02:27,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105557835] [2019-12-07 14:02:27,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:02:27,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:02:27,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:02:27,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:02:27,624 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-12-07 14:02:27,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:27,632 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-12-07 14:02:27,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:02:27,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 14:02:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:27,633 INFO L225 Difference]: With dead ends: 11 [2019-12-07 14:02:27,633 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 14:02:27,633 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:02:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 14:02:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 14:02:27,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 14:02:27,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-12-07 14:02:27,635 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2019-12-07 14:02:27,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:27,635 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 14:02:27,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:02:27,636 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-12-07 14:02:27,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 14:02:27,636 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:02:27,636 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-12-07 14:02:27,636 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 14:02:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:02:27,636 INFO L82 PathProgramCache]: Analyzing trace with hash -140584349, now seen corresponding path program 1 times [2019-12-07 14:02:27,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:02:27,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688763080] [2019-12-07 14:02:27,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:02:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:02:27,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688763080] [2019-12-07 14:02:27,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783637881] [2019-12-07 14:02:27,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:02:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:02:27,711 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:02:27,716 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:02:27,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 14:02:27,745 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:02:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 14:02:27,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [292319245] [2019-12-07 14:02:27,773 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2019-12-07 14:02:27,773 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 14:02:27,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 14:02:27,781 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 14:02:27,781 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 14:02:27,842 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 14:02:27,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-12-07 14:02:27,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 3, 3] total 10 [2019-12-07 14:02:27,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833536447] [2019-12-07 14:02:27,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:02:27,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:02:27,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:02:27,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:02:27,927 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 6 states. [2019-12-07 14:02:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:02:27,943 INFO L93 Difference]: Finished difference Result 19 states and 25 transitions. [2019-12-07 14:02:27,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:02:27,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-12-07 14:02:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:02:27,944 INFO L225 Difference]: With dead ends: 19 [2019-12-07 14:02:27,944 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:02:27,944 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:02:27,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:02:27,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:02:27,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:02:27,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:02:27,945 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-12-07 14:02:27,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:02:27,945 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:02:27,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:02:27,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:02:27,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:02:28,146 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:02:28,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 14:02:28,273 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 14:02:28,273 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 14:02:28,273 INFO L246 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-12-07 14:02:28,273 INFO L246 CegarLoopResult]: For program point L17(lines 17 25) no Hoare annotation was computed. [2019-12-07 14:02:28,274 INFO L242 CegarLoopResult]: At program point L19-2(lines 18 24) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (< 0 ULTIMATE.start_main_~M~0) (<= ULTIMATE.start_main_~M~0 2147483647)) [2019-12-07 14:02:28,274 INFO L242 CegarLoopResult]: At program point L17-1(lines 17 25) the Hoare annotation is: (or (= ULTIMATE.start_main_~M~0 ULTIMATE.start_main_~x~0) (<= (+ ULTIMATE.start_main_~M~0 1) ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 2147483646)) [2019-12-07 14:02:28,274 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 14:02:28,275 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 14:02:28,275 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 14:02:28,275 INFO L246 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-12-07 14:02:28,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:02:28 BoogieIcfgContainer [2019-12-07 14:02:28,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:02:28,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:02:28,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:02:28,294 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:02:28,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:02:27" (3/4) ... [2019-12-07 14:02:28,297 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:02:28,303 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 14:02:28,304 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 14:02:28,304 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 14:02:28,334 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6f3f5bd2-c942-4890-853d-256a19071808/bin/utaipan/witness.graphml [2019-12-07 14:02:28,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:02:28,336 INFO L168 Benchmark]: Toolchain (without parser) took 1368.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 948.9 MB in the beginning and 986.3 MB in the end (delta: -37.4 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:28,336 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:02:28,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:28,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:28,337 INFO L168 Benchmark]: Boogie Preprocessor took 11.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:02:28,338 INFO L168 Benchmark]: RCFGBuilder took 143.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:28,338 INFO L168 Benchmark]: TraceAbstraction took 972.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.7 MB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:28,339 INFO L168 Benchmark]: Witness Printer took 41.19 ms. Allocated memory is still 1.1 GB. Free memory was 991.7 MB in the beginning and 986.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:02:28,341 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 143.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 972.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.7 MB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.19 ms. Allocated memory is still 1.1 GB. Free memory was 991.7 MB in the beginning and 986.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (M == x || M + 1 <= x) || x <= 2147483646 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= x + 2147483648) && 0 < M) && M <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 7 SDtfs, 24 SDslu, 2 SDs, 0 SdLazy, 47 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 27 HoareAnnotationTreeSize, 2 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1021 SizeOfPredicates, 2 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 70, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 11, TOOLS_POST_TIME[ms]: 6, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 11, TOOLS_QUANTIFIERELIM_TIME[ms]: 4, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 1, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 22, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 1, DOMAIN_JOIN_TIME[ms]: 26, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 2, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME[ms]: 5, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 1, PATH_EXPR_TIME[ms]: 2, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 6, DAG_COMPRESSION_PROCESSED_NODES: 50, DAG_COMPRESSION_RETAINED_NODES: 24, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...