./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label55.c -s /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7581b03dc5e38c896dc44d57a6d1677c5f9e4cd ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:13:24,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:13:24,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:13:24,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:13:24,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:13:24,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:13:24,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:13:24,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:13:24,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:13:24,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:13:24,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:13:24,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:13:24,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:13:24,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:13:24,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:13:24,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:13:24,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:13:24,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:13:24,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:13:24,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:13:24,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:13:24,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:13:24,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:13:24,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:13:24,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:13:24,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:13:24,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:13:24,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:13:24,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:13:24,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:13:24,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:13:24,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:13:24,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:13:24,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:13:24,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:13:24,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:13:24,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:13:24,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:13:24,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:13:24,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:13:24,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:13:24,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 15:13:24,122 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:13:24,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:13:24,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:13:24,123 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:13:24,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:13:24,124 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:13:24,124 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:13:24,124 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:13:24,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:13:24,124 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:13:24,124 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:13:24,124 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:13:24,124 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:13:24,125 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:13:24,125 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:13:24,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:13:24,125 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:13:24,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:13:24,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:13:24,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:13:24,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:13:24,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:13:24,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:13:24,126 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:13:24,126 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:13:24,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:13:24,126 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:13:24,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:13:24,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:13:24,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:13:24,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:13:24,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:13:24,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:13:24,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:13:24,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:13:24,127 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:13:24,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:13:24,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:13:24,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:13:24,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:13:24,128 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_265de2b6-13bc-44fb-a307-0c54a8a7cef6/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 ! call(__VERIFIER_error())) ) 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 -> f7581b03dc5e38c896dc44d57a6d1677c5f9e4cd [2019-12-07 15:13:24,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:13:24,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:13:24,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:13:24,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:13:24,239 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:13:24,240 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label55.c [2019-12-07 15:13:24,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/data/ba86974c5/1cb33f89e7b74fbe89923eb99b3ec265/FLAG00e3e2f56 [2019-12-07 15:13:24,716 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:13:24,717 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/sv-benchmarks/c/eca-rers2012/Problem02_label55.c [2019-12-07 15:13:24,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/data/ba86974c5/1cb33f89e7b74fbe89923eb99b3ec265/FLAG00e3e2f56 [2019-12-07 15:13:25,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/data/ba86974c5/1cb33f89e7b74fbe89923eb99b3ec265 [2019-12-07 15:13:25,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:13:25,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:13:25,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:13:25,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:13:25,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:13:25,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb66a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25, skipping insertion in model container [2019-12-07 15:13:25,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:13:25,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:13:25,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:13:25,364 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:13:25,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:13:25,425 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:13:25,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25 WrapperNode [2019-12-07 15:13:25,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:13:25,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:13:25,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:13:25,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:13:25,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:13:25,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:13:25,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:13:25,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:13:25,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... [2019-12-07 15:13:25,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:13:25,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:13:25,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:13:25,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:13:25,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/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 15:13:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:13:25,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:13:26,667 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:13:26,668 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 15:13:26,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:13:26 BoogieIcfgContainer [2019-12-07 15:13:26,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:13:26,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:13:26,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:13:26,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:13:26,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:13:25" (1/3) ... [2019-12-07 15:13:26,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5051a580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:13:26, skipping insertion in model container [2019-12-07 15:13:26,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:13:25" (2/3) ... [2019-12-07 15:13:26,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5051a580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:13:26, skipping insertion in model container [2019-12-07 15:13:26,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:13:26" (3/3) ... [2019-12-07 15:13:26,676 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2019-12-07 15:13:26,685 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:13:26,691 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:13:26,699 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:13:26,716 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:13:26,716 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:13:26,716 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:13:26,716 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:13:26,716 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:13:26,717 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:13:26,717 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:13:26,717 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:13:26,737 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-12-07 15:13:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-12-07 15:13:26,744 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:13:26,744 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:13:26,745 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:13:26,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:13:26,753 INFO L82 PathProgramCache]: Analyzing trace with hash 925948809, now seen corresponding path program 1 times [2019-12-07 15:13:26,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:13:26,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062379976] [2019-12-07 15:13:26,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:13:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:13:27,018 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 15:13:27,018 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062379976] [2019-12-07 15:13:27,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:13:27,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:13:27,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089741838] [2019-12-07 15:13:27,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:13:27,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:13:27,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:13:27,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:13:27,039 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2019-12-07 15:13:27,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:13:27,454 INFO L93 Difference]: Finished difference Result 333 states and 641 transitions. [2019-12-07 15:13:27,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:13:27,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-12-07 15:13:27,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:13:27,467 INFO L225 Difference]: With dead ends: 333 [2019-12-07 15:13:27,467 INFO L226 Difference]: Without dead ends: 243 [2019-12-07 15:13:27,470 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:13:27,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-12-07 15:13:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 163. [2019-12-07 15:13:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-12-07 15:13:27,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 298 transitions. [2019-12-07 15:13:27,505 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 298 transitions. Word has length 80 [2019-12-07 15:13:27,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:13:27,506 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 298 transitions. [2019-12-07 15:13:27,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:13:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 298 transitions. [2019-12-07 15:13:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-12-07 15:13:27,509 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:13:27,509 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:13:27,509 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:13:27,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:13:27,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1028669566, now seen corresponding path program 1 times [2019-12-07 15:13:27,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:13:27,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219341377] [2019-12-07 15:13:27,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:13:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:13:27,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:13:27,589 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219341377] [2019-12-07 15:13:27,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:13:27,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:13:27,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523145190] [2019-12-07 15:13:27,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:13:27,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:13:27,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:13:27,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:13:27,591 INFO L87 Difference]: Start difference. First operand 163 states and 298 transitions. Second operand 4 states. [2019-12-07 15:13:28,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:13:28,019 INFO L93 Difference]: Finished difference Result 645 states and 1187 transitions. [2019-12-07 15:13:28,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:13:28,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2019-12-07 15:13:28,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:13:28,023 INFO L225 Difference]: With dead ends: 645 [2019-12-07 15:13:28,023 INFO L226 Difference]: Without dead ends: 483 [2019-12-07 15:13:28,025 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:13:28,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2019-12-07 15:13:28,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 403. [2019-12-07 15:13:28,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-12-07 15:13:28,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 683 transitions. [2019-12-07 15:13:28,042 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 683 transitions. Word has length 84 [2019-12-07 15:13:28,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:13:28,043 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 683 transitions. [2019-12-07 15:13:28,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:13:28,043 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 683 transitions. [2019-12-07 15:13:28,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-12-07 15:13:28,046 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:13:28,046 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:13:28,046 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:13:28,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:13:28,046 INFO L82 PathProgramCache]: Analyzing trace with hash -66850131, now seen corresponding path program 1 times [2019-12-07 15:13:28,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:13:28,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77367270] [2019-12-07 15:13:28,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:13:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:13:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:13:28,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77367270] [2019-12-07 15:13:28,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:13:28,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:13:28,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114520028] [2019-12-07 15:13:28,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:13:28,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:13:28,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:13:28,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:13:28,097 INFO L87 Difference]: Start difference. First operand 403 states and 683 transitions. Second operand 3 states. [2019-12-07 15:13:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:13:28,310 INFO L93 Difference]: Finished difference Result 1205 states and 2046 transitions. [2019-12-07 15:13:28,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:13:28,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2019-12-07 15:13:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:13:28,314 INFO L225 Difference]: With dead ends: 1205 [2019-12-07 15:13:28,314 INFO L226 Difference]: Without dead ends: 803 [2019-12-07 15:13:28,315 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 [2019-12-07 15:13:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2019-12-07 15:13:28,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2019-12-07 15:13:28,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-12-07 15:13:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1268 transitions. [2019-12-07 15:13:28,334 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1268 transitions. Word has length 100 [2019-12-07 15:13:28,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:13:28,334 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1268 transitions. [2019-12-07 15:13:28,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:13:28,335 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1268 transitions. [2019-12-07 15:13:28,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-12-07 15:13:28,336 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:13:28,336 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:13:28,337 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:13:28,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:13:28,337 INFO L82 PathProgramCache]: Analyzing trace with hash -2018742971, now seen corresponding path program 1 times [2019-12-07 15:13:28,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:13:28,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736440124] [2019-12-07 15:13:28,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:13:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:13:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-12-07 15:13:28,370 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736440124] [2019-12-07 15:13:28,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:13:28,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:13:28,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906168231] [2019-12-07 15:13:28,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:13:28,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:13:28,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:13:28,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:13:28,371 INFO L87 Difference]: Start difference. First operand 803 states and 1268 transitions. Second operand 4 states. [2019-12-07 15:13:28,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:13:28,763 INFO L93 Difference]: Finished difference Result 2883 states and 4485 transitions. [2019-12-07 15:13:28,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:13:28,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-12-07 15:13:28,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:13:28,764 INFO L225 Difference]: With dead ends: 2883 [2019-12-07 15:13:28,764 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:13:28,767 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:13:28,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:13:28,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:13:28,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:13:28,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:13:28,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 118 [2019-12-07 15:13:28,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:13:28,768 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:13:28,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:13:28,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:13:28,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:13:28,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:13:28,816 INFO L246 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-12-07 15:13:28,816 INFO L246 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-12-07 15:13:28,816 INFO L246 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-12-07 15:13:28,816 INFO L246 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-12-07 15:13:28,816 INFO L246 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-12-07 15:13:28,816 INFO L246 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-12-07 15:13:28,816 INFO L246 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-12-07 15:13:28,817 INFO L246 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-12-07 15:13:28,818 INFO L246 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 487) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-12-07 15:13:28,819 INFO L246 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-12-07 15:13:28,820 INFO L242 CegarLoopResult]: At program point L597(lines 29 598) the Hoare annotation is: (or (not (= ~a25~0 1)) (= ~a19~0 1) (not (= ~a11~0 1)) (not (= ~a28~0 10))) [2019-12-07 15:13:28,820 INFO L246 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-12-07 15:13:28,820 INFO L246 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-12-07 15:13:28,820 INFO L249 CegarLoopResult]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-12-07 15:13:28,820 INFO L246 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-12-07 15:13:28,820 INFO L246 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-12-07 15:13:28,820 INFO L246 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-12-07 15:13:28,820 INFO L246 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-12-07 15:13:28,820 INFO L246 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L242 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (or (not (= ~a25~0 1)) (= ~a19~0 1) (not (= ~a11~0 1)) (not (= ~a28~0 10))) [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2019-12-07 15:13:28,821 INFO L246 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2019-12-07 15:13:28,822 INFO L246 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-12-07 15:13:28,823 INFO L246 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-12-07 15:13:28,824 INFO L246 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-12-07 15:13:28,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:13:28 BoogieIcfgContainer [2019-12-07 15:13:28,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:13:28,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:13:28,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:13:28,841 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:13:28,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:13:26" (3/4) ... [2019-12-07 15:13:28,844 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:13:28,864 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2019-12-07 15:13:28,866 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2019-12-07 15:13:28,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-12-07 15:13:28,869 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 15:13:28,981 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_265de2b6-13bc-44fb-a307-0c54a8a7cef6/bin/utaipan/witness.graphml [2019-12-07 15:13:28,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:13:28,983 INFO L168 Benchmark]: Toolchain (without parser) took 3910.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 940.8 MB in the beginning and 882.7 MB in the end (delta: 58.1 MB). Peak memory consumption was 206.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:13:28,983 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:13:28,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 940.8 MB in the beginning and 1.0 GB in the end (delta: -108.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:13:28,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:13:28,984 INFO L168 Benchmark]: Boogie Preprocessor took 38.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:13:28,984 INFO L168 Benchmark]: RCFGBuilder took 1155.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 819.6 MB in the end (delta: 218.7 MB). Peak memory consumption was 218.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:13:28,985 INFO L168 Benchmark]: TraceAbstraction took 2170.01 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 819.6 MB in the beginning and 904.7 MB in the end (delta: -85.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:13:28,985 INFO L168 Benchmark]: Witness Printer took 140.59 ms. Allocated memory is still 1.2 GB. Free memory was 904.7 MB in the beginning and 882.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:13:28,986 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 940.8 MB in the beginning and 1.0 GB in the end (delta: -108.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1155.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 819.6 MB in the end (delta: 218.7 MB). Peak memory consumption was 218.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2170.01 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 819.6 MB in the beginning and 904.7 MB in the end (delta: -85.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 140.59 ms. Allocated memory is still 1.2 GB. Free memory was 904.7 MB in the beginning and 882.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 487]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((!(a25 == 1) || a19 == 1) || !(a11 == 1)) || !(a28 == 10) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((!(a25 == 1) || a19 == 1) || !(a11 == 1)) || !(a28 == 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 133 SDtfs, 504 SDslu, 69 SDs, 0 SdLazy, 1667 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=803occurred in iteration=3, 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, 4 MinimizatonAttempts, 160 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 58 NumberOfFragments, 33 HoareAnnotationTreeSize, 3 FomulaSimplifications, 636 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 73232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 64/64 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...