./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/Addition03-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/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 32bit --witnessprinter.graph.data.programhash dc212c6f03bbd9a964d699fa8baa949beea27f48 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: Recursive programs are not supported. --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:56:19,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:56:19,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:56:19,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:56:19,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:56:19,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:56:19,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:56:19,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:56:19,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:56:19,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:56:19,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:56:19,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:56:19,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:56:19,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:56:19,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:56:19,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:56:19,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:56:19,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:56:19,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:56:19,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:56:19,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:56:19,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:56:19,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:56:19,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:56:19,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:56:19,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:56:19,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:56:19,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:56:19,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:56:19,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:56:19,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:56:19,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:56:19,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:56:19,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:56:19,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:56:19,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:56:19,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:56:19,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:56:19,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:56:19,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:56:19,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:56:19,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2019-11-26 02:56:19,103 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:56:19,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:56:19,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:56:19,113 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:56:19,114 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:56:19,114 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:56:19,114 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:56:19,114 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:56:19,114 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:56:19,115 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:56:19,115 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:56:19,115 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:56:19,115 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:56:19,116 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:56:19,116 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:56:19,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:56:19,118 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:56:19,118 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:56:19,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:56:19,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:56:19,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:56:19,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:56:19,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:56:19,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:56:19,119 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:56:19,119 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:56:19,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:56:19,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:56:19,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:56:19,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:56:19,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:56:19,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:56:19,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:56:19,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:56:19,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:56:19,122 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:56:19,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:56:19,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:56:19,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:56:19,123 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_700de178-c5e8-4f4f-aca2-7ed1cfab7189/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc212c6f03bbd9a964d699fa8baa949beea27f48 [2019-11-26 02:56:19,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:56:19,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:56:19,295 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:56:19,296 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:56:19,296 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:56:19,297 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/../../sv-benchmarks/c/recursive/Addition03-1.c [2019-11-26 02:56:19,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/data/f8fe30540/045a9824901d4693b63c3b1087221e99/FLAGad2cbbb61 [2019-11-26 02:56:19,746 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:56:19,747 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/sv-benchmarks/c/recursive/Addition03-1.c [2019-11-26 02:56:19,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/data/f8fe30540/045a9824901d4693b63c3b1087221e99/FLAGad2cbbb61 [2019-11-26 02:56:20,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/bin/utaipan/data/f8fe30540/045a9824901d4693b63c3b1087221e99 [2019-11-26 02:56:20,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:56:20,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:56:20,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:20,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:56:20,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:56:20,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b72223f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20, skipping insertion in model container [2019-11-26 02:56:20,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:56:20,214 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:56:20,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:20,393 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:56:20,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:20,488 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:56:20,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20 WrapperNode [2019-11-26 02:56:20,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:20,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:20,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:56:20,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:56:20,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:20,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:56:20,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:56:20,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:56:20,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... [2019-11-26 02:56:20,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:56:20,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:56:20,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:56:20,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:56:20,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/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 [2019-11-26 02:56:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:56:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:56:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2019-11-26 02:56:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2019-11-26 02:56:20,927 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:56:20,927 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:56:20,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:20 BoogieIcfgContainer [2019-11-26 02:56:20,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:56:20,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:56:20,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:56:20,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:56:20,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:56:20" (1/3) ... [2019-11-26 02:56:20,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a501221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:56:20, skipping insertion in model container [2019-11-26 02:56:20,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:20" (2/3) ... [2019-11-26 02:56:20,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a501221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:56:20, skipping insertion in model container [2019-11-26 02:56:20,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:20" (3/3) ... [2019-11-26 02:56:20,935 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2019-11-26 02:56:20,943 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:56:20,950 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-26 02:56:20,960 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-26 02:56:20,982 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:56:20,983 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:56:20,983 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:56:20,983 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:56:20,983 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:56:20,983 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:56:20,983 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:56:20,984 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:56:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-26 02:56:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:56:21,006 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:56:21,007 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:56:21,008 INFO L410 AbstractCegarLoop]: === Iteration 1 === [additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:56:21,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:21,013 INFO L82 PathProgramCache]: Analyzing trace with hash 960896885, now seen corresponding path program 1 times [2019-11-26 02:56:21,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:56:21,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788206843] [2019-11-26 02:56:21,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:56:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:21,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:21,174 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788206843] [2019-11-26 02:56:21,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:56:21,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:56:21,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950945106] [2019-11-26 02:56:21,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:56:21,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:56:21,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:56:21,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:56:21,192 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2019-11-26 02:56:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:56:21,346 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2019-11-26 02:56:21,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:56:21,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-11-26 02:56:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:56:21,355 INFO L225 Difference]: With dead ends: 56 [2019-11-26 02:56:21,355 INFO L226 Difference]: Without dead ends: 44 [2019-11-26 02:56:21,358 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:56:21,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-26 02:56:21,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 34. [2019-11-26 02:56:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-26 02:56:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2019-11-26 02:56:21,392 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 6 [2019-11-26 02:56:21,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:56:21,392 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2019-11-26 02:56:21,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:56:21,393 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2019-11-26 02:56:21,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:56:21,393 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:56:21,393 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:56:21,394 INFO L410 AbstractCegarLoop]: === Iteration 2 === [additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:56:21,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:21,394 INFO L82 PathProgramCache]: Analyzing trace with hash -276967582, now seen corresponding path program 1 times [2019-11-26 02:56:21,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:56:21,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635980241] [2019-11-26 02:56:21,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:56:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:21,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635980241] [2019-11-26 02:56:21,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:56:21,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:56:21,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654879941] [2019-11-26 02:56:21,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:56:21,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:56:21,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:56:21,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:56:21,441 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 5 states. [2019-11-26 02:56:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:56:21,547 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2019-11-26 02:56:21,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:56:21,547 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-26 02:56:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:56:21,549 INFO L225 Difference]: With dead ends: 66 [2019-11-26 02:56:21,549 INFO L226 Difference]: Without dead ends: 64 [2019-11-26 02:56:21,550 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:56:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-26 02:56:21,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 52. [2019-11-26 02:56:21,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-26 02:56:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2019-11-26 02:56:21,562 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 7 [2019-11-26 02:56:21,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:56:21,562 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-11-26 02:56:21,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:56:21,562 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2019-11-26 02:56:21,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:56:21,563 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:56:21,563 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:56:21,564 INFO L410 AbstractCegarLoop]: === Iteration 3 === [additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:56:21,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:21,564 INFO L82 PathProgramCache]: Analyzing trace with hash 3939607, now seen corresponding path program 1 times [2019-11-26 02:56:21,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:56:21,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248867999] [2019-11-26 02:56:21,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:56:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:21,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:21,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248867999] [2019-11-26 02:56:21,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:56:21,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:56:21,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196854833] [2019-11-26 02:56:21,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:56:21,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:56:21,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:56:21,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:56:21,609 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand 5 states. [2019-11-26 02:56:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:56:21,691 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2019-11-26 02:56:21,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:56:21,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-26 02:56:21,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:56:21,697 INFO L225 Difference]: With dead ends: 63 [2019-11-26 02:56:21,697 INFO L226 Difference]: Without dead ends: 61 [2019-11-26 02:56:21,698 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:56:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-26 02:56:21,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 51. [2019-11-26 02:56:21,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-26 02:56:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2019-11-26 02:56:21,708 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 8 [2019-11-26 02:56:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:56:21,708 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2019-11-26 02:56:21,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:56:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2019-11-26 02:56:21,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:56:21,709 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:56:21,709 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:56:21,710 INFO L410 AbstractCegarLoop]: === Iteration 4 === [additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:56:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:21,710 INFO L82 PathProgramCache]: Analyzing trace with hash 122127876, now seen corresponding path program 1 times [2019-11-26 02:56:21,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:56:21,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008367686] [2019-11-26 02:56:21,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:56:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:21,737 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008367686] [2019-11-26 02:56:21,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:56:21,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:56:21,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936325829] [2019-11-26 02:56:21,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:56:21,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:56:21,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:56:21,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:56:21,739 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand 3 states. [2019-11-26 02:56:21,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:56:21,767 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2019-11-26 02:56:21,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:56:21,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-26 02:56:21,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:56:21,769 INFO L225 Difference]: With dead ends: 51 [2019-11-26 02:56:21,769 INFO L226 Difference]: Without dead ends: 50 [2019-11-26 02:56:21,769 INFO L630 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 [2019-11-26 02:56:21,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-26 02:56:21,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-11-26 02:56:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-26 02:56:21,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2019-11-26 02:56:21,778 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 9 [2019-11-26 02:56:21,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:56:21,778 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2019-11-26 02:56:21,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:56:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2019-11-26 02:56:21,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:56:21,779 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:56:21,779 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:56:21,780 INFO L410 AbstractCegarLoop]: === Iteration 5 === [additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:56:21,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:21,780 INFO L82 PathProgramCache]: Analyzing trace with hash -182630758, now seen corresponding path program 1 times [2019-11-26 02:56:21,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:56:21,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989684465] [2019-11-26 02:56:21,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:56:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:21,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989684465] [2019-11-26 02:56:21,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:56:21,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:56:21,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151437953] [2019-11-26 02:56:21,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:56:21,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:56:21,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:56:21,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:56:21,837 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 5 states. [2019-11-26 02:56:21,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:56:21,900 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2019-11-26 02:56:21,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:56:21,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-26 02:56:21,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:56:21,901 INFO L225 Difference]: With dead ends: 62 [2019-11-26 02:56:21,901 INFO L226 Difference]: Without dead ends: 61 [2019-11-26 02:56:21,902 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:56:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-26 02:56:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2019-11-26 02:56:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-26 02:56:21,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2019-11-26 02:56:21,911 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 10 [2019-11-26 02:56:21,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:56:21,911 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2019-11-26 02:56:21,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:56:21,912 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2019-11-26 02:56:21,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-26 02:56:21,912 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:56:21,913 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:56:21,913 INFO L410 AbstractCegarLoop]: === Iteration 6 === [additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:56:21,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:21,913 INFO L82 PathProgramCache]: Analyzing trace with hash 566996914, now seen corresponding path program 1 times [2019-11-26 02:56:21,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:56:21,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090505569] [2019-11-26 02:56:21,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:56:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:21,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:21,996 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090505569] [2019-11-26 02:56:21,996 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940586917] [2019-11-26 02:56:21,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_700de178-c5e8-4f4f-aca2-7ed1cfab7189/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 [2019-11-26 02:56:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:22,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-26 02:56:22,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:56:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:22,084 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:56:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:22,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [534968891] [2019-11-26 02:56:22,176 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-26 02:56:22,176 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:56:22,182 FATAL L310 FreeRefinementEngine]: Exception during interpolant generation: IllegalArgumentException [2019-11-26 02:56:22,394 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:56:22,395 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-26 02:56:22,399 INFO L168 Benchmark]: Toolchain (without parser) took 2217.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 950.1 MB in the beginning and 977.6 MB in the end (delta: -27.5 MB). Peak memory consumption was 74.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:22,400 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:56:22,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:22,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.66 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. [2019-11-26 02:56:22,401 INFO L168 Benchmark]: Boogie Preprocessor took 16.24 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:22,402 INFO L168 Benchmark]: RCFGBuilder took 395.06 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:22,402 INFO L168 Benchmark]: TraceAbstraction took 1468.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 977.6 MB in the end (delta: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:22,405 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.66 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. * Boogie Preprocessor took 16.24 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 395.06 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1468.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 977.6 MB in the end (delta: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: Recursive programs are not supported. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: Recursive programs are not supported.: de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...