./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label01.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/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 4facd755ec6bf0af5c404932d2a8a73ce9edcfbd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:44:46,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:44:46,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:44:46,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:44:46,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:44:46,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:44:46,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:44:46,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:44:46,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:44:46,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:44:46,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:44:46,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:44:46,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:44:46,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:44:46,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:44:46,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:44:46,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:44:46,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:44:46,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:44:46,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:44:46,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:44:46,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:44:46,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:44:46,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:44:46,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:44:46,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:44:46,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:44:46,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:44:46,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:44:46,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:44:46,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:44:46,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:44:46,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:44:46,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:44:46,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:44:46,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:44:46,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:44:46,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:44:46,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:44:46,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:44:46,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:44:46,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:44:46,359 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:44:46,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:44:46,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:44:46,360 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:44:46,360 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:44:46,361 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:44:46,361 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:44:46,361 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:44:46,361 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:44:46,361 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:44:46,362 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:44:46,362 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:44:46,362 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:44:46,362 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:44:46,362 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:44:46,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:44:46,363 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:44:46,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:44:46,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:44:46,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:44:46,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:44:46,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:44:46,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:44:46,364 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:44:46,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:44:46,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:44:46,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:44:46,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:44:46,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:44:46,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:44:46,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:44:46,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:44:46,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:44:46,366 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:44:46,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:44:46,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:44:46,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:44:46,367 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_5b4412e8-cebe-404e-88cc-6af2cad5082d/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 -> 4facd755ec6bf0af5c404932d2a8a73ce9edcfbd [2019-11-26 02:44:46,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:44:46,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:44:46,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:44:46,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:44:46,543 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:44:46,544 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label01.c [2019-11-26 02:44:46,602 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/data/83af66264/845326c459474af3b8e087b2649ab6df/FLAGa68dcdb92 [2019-11-26 02:44:47,119 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:44:47,120 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/sv-benchmarks/c/eca-rers2012/Problem02_label01.c [2019-11-26 02:44:47,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/data/83af66264/845326c459474af3b8e087b2649ab6df/FLAGa68dcdb92 [2019-11-26 02:44:47,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/data/83af66264/845326c459474af3b8e087b2649ab6df [2019-11-26 02:44:47,440 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:44:47,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:44:47,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:47,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:44:47,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:44:47,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:47" (1/1) ... [2019-11-26 02:44:47,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133f4d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:47, skipping insertion in model container [2019-11-26 02:44:47,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:47" (1/1) ... [2019-11-26 02:44:47,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:44:47,502 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:44:47,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:47,919 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:44:48,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:48,039 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:44:48,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48 WrapperNode [2019-11-26 02:44:48,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:48,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:48,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:44:48,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:44:48,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:48,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:44:48,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:44:48,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:44:48,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... [2019-11-26 02:44:48,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:44:48,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:44:48,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:44:48,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:44:48,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/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 02:44:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:44:48,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:44:50,439 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:44:50,440 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:44:50,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:50 BoogieIcfgContainer [2019-11-26 02:44:50,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:44:50,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:44:50,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:44:50,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:44:50,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:44:47" (1/3) ... [2019-11-26 02:44:50,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ae1ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:44:50, skipping insertion in model container [2019-11-26 02:44:50,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:48" (2/3) ... [2019-11-26 02:44:50,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ae1ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:44:50, skipping insertion in model container [2019-11-26 02:44:50,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:50" (3/3) ... [2019-11-26 02:44:50,451 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label01.c [2019-11-26 02:44:50,459 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:44:50,465 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:44:50,476 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:44:50,510 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:44:50,510 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:44:50,511 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:44:50,511 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:44:50,511 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:44:50,511 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:44:50,511 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:44:50,512 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:44:50,557 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-26 02:44:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-26 02:44:50,565 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:50,566 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] [2019-11-26 02:44:50,566 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:50,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:50,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1497204973, now seen corresponding path program 1 times [2019-11-26 02:44:50,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:50,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922771098] [2019-11-26 02:44:50,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:50,985 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 02:44:50,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922771098] [2019-11-26 02:44:50,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:50,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:44:50,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660137553] [2019-11-26 02:44:50,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:44:50,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:51,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:44:51,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:44:51,010 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2019-11-26 02:44:51,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:51,739 INFO L93 Difference]: Finished difference Result 333 states and 641 transitions. [2019-11-26 02:44:51,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:44:51,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-11-26 02:44:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:51,761 INFO L225 Difference]: With dead ends: 333 [2019-11-26 02:44:51,762 INFO L226 Difference]: Without dead ends: 243 [2019-11-26 02:44:51,766 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 [2019-11-26 02:44:51,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-26 02:44:51,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 163. [2019-11-26 02:44:51,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-11-26 02:44:51,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 298 transitions. [2019-11-26 02:44:51,833 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 298 transitions. Word has length 80 [2019-11-26 02:44:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:51,834 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 298 transitions. [2019-11-26 02:44:51,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:44:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 298 transitions. [2019-11-26 02:44:51,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-26 02:44:51,839 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:51,839 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] [2019-11-26 02:44:51,840 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:51,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:51,840 INFO L82 PathProgramCache]: Analyzing trace with hash -179243678, now seen corresponding path program 1 times [2019-11-26 02:44:51,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:51,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342330051] [2019-11-26 02:44:51,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:52,009 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342330051] [2019-11-26 02:44:52,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:52,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:44:52,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100746499] [2019-11-26 02:44:52,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:44:52,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:52,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:44:52,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:44:52,013 INFO L87 Difference]: Start difference. First operand 163 states and 298 transitions. Second operand 4 states. [2019-11-26 02:44:52,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:52,695 INFO L93 Difference]: Finished difference Result 645 states and 1187 transitions. [2019-11-26 02:44:52,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:44:52,696 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2019-11-26 02:44:52,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:52,700 INFO L225 Difference]: With dead ends: 645 [2019-11-26 02:44:52,700 INFO L226 Difference]: Without dead ends: 483 [2019-11-26 02:44:52,701 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:44:52,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2019-11-26 02:44:52,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 403. [2019-11-26 02:44:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-11-26 02:44:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 683 transitions. [2019-11-26 02:44:52,758 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 683 transitions. Word has length 84 [2019-11-26 02:44:52,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:52,759 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 683 transitions. [2019-11-26 02:44:52,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:44:52,760 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 683 transitions. [2019-11-26 02:44:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-11-26 02:44:52,764 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:52,765 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:52,765 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:52,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:52,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1588397517, now seen corresponding path program 1 times [2019-11-26 02:44:52,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:52,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794141864] [2019-11-26 02:44:52,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:52,806 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-26 02:44:52,806 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794141864] [2019-11-26 02:44:52,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:52,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:44:52,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790754836] [2019-11-26 02:44:52,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:44:52,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:52,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:44:52,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:44:52,808 INFO L87 Difference]: Start difference. First operand 403 states and 683 transitions. Second operand 4 states. [2019-11-26 02:44:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:53,413 INFO L93 Difference]: Finished difference Result 1605 states and 2727 transitions. [2019-11-26 02:44:53,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:44:53,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2019-11-26 02:44:53,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:53,420 INFO L225 Difference]: With dead ends: 1605 [2019-11-26 02:44:53,420 INFO L226 Difference]: Without dead ends: 1203 [2019-11-26 02:44:53,423 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 [2019-11-26 02:44:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2019-11-26 02:44:53,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 723. [2019-11-26 02:44:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2019-11-26 02:44:53,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1183 transitions. [2019-11-26 02:44:53,473 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1183 transitions. Word has length 100 [2019-11-26 02:44:53,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:53,474 INFO L462 AbstractCegarLoop]: Abstraction has 723 states and 1183 transitions. [2019-11-26 02:44:53,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:44:53,474 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1183 transitions. [2019-11-26 02:44:53,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-11-26 02:44:53,476 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:53,477 INFO L410 BasicCegarLoop]: trace histogram [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, 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] [2019-11-26 02:44:53,477 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:53,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:53,477 INFO L82 PathProgramCache]: Analyzing trace with hash -401263691, now seen corresponding path program 1 times [2019-11-26 02:44:53,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:53,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898604946] [2019-11-26 02:44:53,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:53,573 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-26 02:44:53,574 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898604946] [2019-11-26 02:44:53,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:53,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:44:53,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451453770] [2019-11-26 02:44:53,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:44:53,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:53,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:44:53,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:44:53,576 INFO L87 Difference]: Start difference. First operand 723 states and 1183 transitions. Second operand 4 states. [2019-11-26 02:44:53,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:53,961 INFO L93 Difference]: Finished difference Result 1523 states and 2453 transitions. [2019-11-26 02:44:53,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:44:53,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2019-11-26 02:44:53,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:53,962 INFO L225 Difference]: With dead ends: 1523 [2019-11-26 02:44:53,963 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:44:53,964 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:44:53,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:44:53,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:44:53,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:44:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:44:53,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 127 [2019-11-26 02:44:53,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:53,965 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:44:53,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:44:53,966 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:44:53,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:44:53,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:44:54,109 INFO L444 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-11-26 02:44:54,110 INFO L444 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-11-26 02:44:54,111 INFO L444 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-11-26 02:44:54,112 INFO L444 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-11-26 02:44:54,113 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-11-26 02:44:54,113 INFO L444 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-11-26 02:44:54,113 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-11-26 02:44:54,113 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-11-26 02:44:54,113 INFO L444 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-11-26 02:44:54,113 INFO L444 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-11-26 02:44:54,113 INFO L444 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-11-26 02:44:54,113 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-11-26 02:44:54,113 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 511) no Hoare annotation was computed. [2019-11-26 02:44:54,114 INFO L444 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-11-26 02:44:54,114 INFO L444 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-11-26 02:44:54,114 INFO L444 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-11-26 02:44:54,114 INFO L444 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-11-26 02:44:54,114 INFO L440 ceAbstractionStarter]: At program point L597(lines 29 598) the Hoare annotation is: (or (and (not (= ~a28~0 8)) (not (= ~a17~0 9))) (and (= ~a17~0 8) (not (= ~a11~0 1)))) [2019-11-26 02:44:54,114 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-11-26 02:44:54,114 INFO L444 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-11-26 02:44:54,115 INFO L447 ceAbstractionStarter]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-11-26 02:44:54,115 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-11-26 02:44:54,115 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-11-26 02:44:54,115 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-11-26 02:44:54,115 INFO L444 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-11-26 02:44:54,115 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-11-26 02:44:54,115 INFO L444 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-11-26 02:44:54,115 INFO L444 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-11-26 02:44:54,115 INFO L440 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (or (and (not (= ~a28~0 8)) (not (= ~a17~0 9))) (and (= ~a17~0 8) (not (= ~a11~0 1)))) [2019-11-26 02:44:54,115 INFO L444 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-11-26 02:44:54,116 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:44:54,117 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-11-26 02:44:54,121 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-11-26 02:44:54,121 INFO L444 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-11-26 02:44:54,122 INFO L444 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-11-26 02:44:54,122 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-11-26 02:44:54,123 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-11-26 02:44:54,123 INFO L444 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-11-26 02:44:54,123 INFO L444 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-11-26 02:44:54,123 INFO L444 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-11-26 02:44:54,123 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-11-26 02:44:54,123 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-11-26 02:44:54,123 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-11-26 02:44:54,124 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-11-26 02:44:54,130 INFO L444 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-11-26 02:44:54,130 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-11-26 02:44:54,130 INFO L444 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-11-26 02:44:54,130 INFO L444 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-11-26 02:44:54,131 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-11-26 02:44:54,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:44:54 BoogieIcfgContainer [2019-11-26 02:44:54,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:44:54,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:44:54,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:44:54,148 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:44:54,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:50" (3/4) ... [2019-11-26 02:44:54,152 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:44:54,175 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2019-11-26 02:44:54,177 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2019-11-26 02:44:54,178 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-26 02:44:54,180 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:44:54,322 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b4412e8-cebe-404e-88cc-6af2cad5082d/bin/utaipan/witness.graphml [2019-11-26 02:44:54,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:44:54,324 INFO L168 Benchmark]: Toolchain (without parser) took 6881.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 943.4 MB in the beginning and 918.4 MB in the end (delta: 24.9 MB). Peak memory consumption was 226.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:54,324 INFO L168 Benchmark]: CDTParser took 0.25 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 02:44:54,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:54,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:54,325 INFO L168 Benchmark]: Boogie Preprocessor took 80.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:54,326 INFO L168 Benchmark]: RCFGBuilder took 2231.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 885.8 MB in the end (delta: 217.6 MB). Peak memory consumption was 217.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:54,326 INFO L168 Benchmark]: TraceAbstraction took 3705.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 885.8 MB in the beginning and 939.8 MB in the end (delta: -54.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:54,327 INFO L168 Benchmark]: Witness Printer took 174.13 ms. Allocated memory is still 1.2 GB. Free memory was 939.8 MB in the beginning and 918.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:54,329 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 596.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2231.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 885.8 MB in the end (delta: 217.6 MB). Peak memory consumption was 217.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3705.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 885.8 MB in the beginning and 939.8 MB in the end (delta: -54.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Witness Printer took 174.13 ms. Allocated memory is still 1.2 GB. Free memory was 939.8 MB in the beginning and 918.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 511]: 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: (!(a28 == 8) && !(a17 == 9)) || (a17 == 8 && !(a11 == 1)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (!(a28 == 8) && !(a17 == 9)) || (a17 == 8 && !(a11 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 88 SDtfs, 580 SDslu, 69 SDs, 0 SdLazy, 1635 SolverSat, 414 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=723occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 640 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 26 NumberOfFragments, 37 HoareAnnotationTreeSize, 3 FomulaSimplifications, 380 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 391 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 387 ConstructedInterpolants, 0 QuantifiedInterpolants, 93837 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 76/76 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...