./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/15_dekker_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/15_dekker_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/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 7d18463df1ccecb78ef9c884b34855756d40cf97 .................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 00:27:27,382 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:27:27,383 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:27:27,391 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:27:27,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:27:27,392 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:27:27,392 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:27:27,394 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:27:27,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:27:27,395 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:27:27,396 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:27:27,396 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:27:27,397 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:27:27,398 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:27:27,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:27:27,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:27:27,400 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:27:27,401 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:27:27,403 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:27:27,404 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:27:27,405 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:27:27,406 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:27:27,407 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:27:27,408 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:27:27,408 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:27:27,409 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:27:27,410 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:27:27,410 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:27:27,411 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:27:27,411 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:27:27,411 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:27:27,412 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:27:27,412 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:27:27,412 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:27:27,413 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:27:27,414 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:27:27,414 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 00:27:27,425 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:27:27,425 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:27:27,425 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:27:27,426 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:27:27,426 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 00:27:27,426 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 00:27:27,426 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 00:27:27,426 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 00:27:27,426 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 00:27:27,426 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 00:27:27,426 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 00:27:27,426 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 00:27:27,427 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 00:27:27,427 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:27:27,427 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:27:27,427 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:27:27,427 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:27:27,428 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:27:27,428 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:27:27,428 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:27:27,428 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:27:27,428 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:27:27,428 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:27:27,428 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:27:27,429 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:27:27,429 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:27:27,429 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:27:27,429 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:27:27,429 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:27:27,430 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:27:27,431 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:27:27,431 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:27:27,431 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:27:27,431 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 00:27:27,431 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:27:27,431 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:27:27,431 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 00:27:27,431 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 7d18463df1ccecb78ef9c884b34855756d40cf97 [2018-11-23 00:27:27,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:27:27,461 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:27:27,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:27:27,464 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:27:27,464 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:27:27,465 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/15_dekker_true-unreach-call.i [2018-11-23 00:27:27,498 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/data/3981d26c7/65e572a89c5b4ce5b87b7c7eb7e447de/FLAG746fe8dad [2018-11-23 00:27:27,932 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:27:27,933 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/sv-benchmarks/c/pthread-ext/15_dekker_true-unreach-call.i [2018-11-23 00:27:27,941 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/data/3981d26c7/65e572a89c5b4ce5b87b7c7eb7e447de/FLAG746fe8dad [2018-11-23 00:27:27,951 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/data/3981d26c7/65e572a89c5b4ce5b87b7c7eb7e447de [2018-11-23 00:27:27,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:27:27,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:27:27,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:27:27,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:27:27,956 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:27:27,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:27:27" (1/1) ... [2018-11-23 00:27:27,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388bc786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:27, skipping insertion in model container [2018-11-23 00:27:27,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:27:27" (1/1) ... [2018-11-23 00:27:27,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:27:27,992 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:27:28,195 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:27:28,204 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:27:28,276 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:27:28,306 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:27:28,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28 WrapperNode [2018-11-23 00:27:28,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:27:28,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:27:28,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:27:28,307 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:27:28,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... [2018-11-23 00:27:28,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... [2018-11-23 00:27:28,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:27:28,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:27:28,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:27:28,338 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:27:28,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... [2018-11-23 00:27:28,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... [2018-11-23 00:27:28,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... [2018-11-23 00:27:28,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... [2018-11-23 00:27:28,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... [2018-11-23 00:27:28,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... [2018-11-23 00:27:28,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... [2018-11-23 00:27:28,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:27:28,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:27:28,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:27:28,356 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:27:28,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:27:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:27:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-23 00:27:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-23 00:27:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 00:27:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 00:27:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:27:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:27:28,410 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 00:27:28,704 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:27:28,704 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-11-23 00:27:28,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:27:28 BoogieIcfgContainer [2018-11-23 00:27:28,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:27:28,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:27:28,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:27:28,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:27:28,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:27:27" (1/3) ... [2018-11-23 00:27:28,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dfb6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:27:28, skipping insertion in model container [2018-11-23 00:27:28,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:27:28" (2/3) ... [2018-11-23 00:27:28,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dfb6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:27:28, skipping insertion in model container [2018-11-23 00:27:28,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:27:28" (3/3) ... [2018-11-23 00:27:28,709 INFO L112 eAbstractionObserver]: Analyzing ICFG 15_dekker_true-unreach-call.i [2018-11-23 00:27:28,727 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:27:28,727 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:27:28,728 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:27:28,728 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:27:28,728 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:27:28,728 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:27:28,734 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 00:27:28,735 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:27:28,740 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-23 00:27:28,750 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-23 00:27:28,766 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:27:28,766 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:27:28,766 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:27:28,766 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:27:28,766 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:27:28,766 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:27:28,766 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:27:28,767 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:27:28,773 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53places, 63 transitions [2018-11-23 00:27:28,795 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 427 states. [2018-11-23 00:27:28,797 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states. [2018-11-23 00:27:28,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 00:27:28,804 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:27:28,804 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:27:28,806 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:27:28,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:27:28,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1543566699, now seen corresponding path program 1 times [2018-11-23 00:27:28,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:27:28,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:28,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:27:28,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:28,849 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:27:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:27:28,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:27:28,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:27:28,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:27:28,907 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:27:28,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 00:27:28,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 00:27:28,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 00:27:28,922 INFO L87 Difference]: Start difference. First operand 427 states. Second operand 2 states. [2018-11-23 00:27:28,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:27:28,945 INFO L93 Difference]: Finished difference Result 427 states and 927 transitions. [2018-11-23 00:27:28,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 00:27:28,946 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-23 00:27:28,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:27:28,957 INFO L225 Difference]: With dead ends: 427 [2018-11-23 00:27:28,957 INFO L226 Difference]: Without dead ends: 372 [2018-11-23 00:27:28,959 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 00:27:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-11-23 00:27:29,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2018-11-23 00:27:29,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-11-23 00:27:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 817 transitions. [2018-11-23 00:27:29,006 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 817 transitions. Word has length 17 [2018-11-23 00:27:29,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:27:29,006 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 817 transitions. [2018-11-23 00:27:29,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 00:27:29,006 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 817 transitions. [2018-11-23 00:27:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 00:27:29,007 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:27:29,007 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:27:29,007 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:27:29,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:27:29,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1543596490, now seen corresponding path program 1 times [2018-11-23 00:27:29,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:27:29,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:29,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:27:29,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:29,012 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:27:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:27:29,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:27:29,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:27:29,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 00:27:29,055 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:27:29,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:27:29,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:27:29,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:27:29,057 INFO L87 Difference]: Start difference. First operand 372 states and 817 transitions. Second operand 3 states. [2018-11-23 00:27:29,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:27:29,101 INFO L93 Difference]: Finished difference Result 377 states and 800 transitions. [2018-11-23 00:27:29,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:27:29,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-23 00:27:29,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:27:29,102 INFO L225 Difference]: With dead ends: 377 [2018-11-23 00:27:29,102 INFO L226 Difference]: Without dead ends: 278 [2018-11-23 00:27:29,103 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:27:29,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-11-23 00:27:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 263. [2018-11-23 00:27:29,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-11-23 00:27:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 559 transitions. [2018-11-23 00:27:29,114 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 559 transitions. Word has length 17 [2018-11-23 00:27:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:27:29,115 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 559 transitions. [2018-11-23 00:27:29,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:27:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 559 transitions. [2018-11-23 00:27:29,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 00:27:29,116 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:27:29,116 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:27:29,116 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:27:29,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:27:29,116 INFO L82 PathProgramCache]: Analyzing trace with hash 995652780, now seen corresponding path program 1 times [2018-11-23 00:27:29,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:27:29,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:29,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:27:29,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:29,120 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:27:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:27:29,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:27:29,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:27:29,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 00:27:29,149 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:27:29,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:27:29,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:27:29,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:27:29,150 INFO L87 Difference]: Start difference. First operand 263 states and 559 transitions. Second operand 3 states. [2018-11-23 00:27:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:27:29,164 INFO L93 Difference]: Finished difference Result 246 states and 512 transitions. [2018-11-23 00:27:29,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:27:29,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-23 00:27:29,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:27:29,166 INFO L225 Difference]: With dead ends: 246 [2018-11-23 00:27:29,166 INFO L226 Difference]: Without dead ends: 181 [2018-11-23 00:27:29,166 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:27:29,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-11-23 00:27:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-11-23 00:27:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-23 00:27:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 373 transitions. [2018-11-23 00:27:29,172 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 373 transitions. Word has length 21 [2018-11-23 00:27:29,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:27:29,172 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 373 transitions. [2018-11-23 00:27:29,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:27:29,173 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 373 transitions. [2018-11-23 00:27:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 00:27:29,174 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:27:29,174 INFO L402 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] [2018-11-23 00:27:29,174 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:27:29,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:27:29,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1294877620, now seen corresponding path program 1 times [2018-11-23 00:27:29,174 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:27:29,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:29,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:27:29,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:29,178 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:27:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:27:29,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:27:29,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:27:29,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 00:27:29,208 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:27:29,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:27:29,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:27:29,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:27:29,208 INFO L87 Difference]: Start difference. First operand 181 states and 373 transitions. Second operand 3 states. [2018-11-23 00:27:29,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:27:29,228 INFO L93 Difference]: Finished difference Result 181 states and 368 transitions. [2018-11-23 00:27:29,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:27:29,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-23 00:27:29,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:27:29,229 INFO L225 Difference]: With dead ends: 181 [2018-11-23 00:27:29,229 INFO L226 Difference]: Without dead ends: 159 [2018-11-23 00:27:29,229 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:27:29,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-11-23 00:27:29,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-11-23 00:27:29,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-11-23 00:27:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 320 transitions. [2018-11-23 00:27:29,234 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 320 transitions. Word has length 25 [2018-11-23 00:27:29,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:27:29,234 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 320 transitions. [2018-11-23 00:27:29,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:27:29,234 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 320 transitions. [2018-11-23 00:27:29,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 00:27:29,235 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:27:29,235 INFO L402 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] [2018-11-23 00:27:29,236 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:27:29,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:27:29,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1814740049, now seen corresponding path program 1 times [2018-11-23 00:27:29,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:27:29,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:29,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:27:29,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:27:29,240 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:27:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:27:29,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:27:29,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:27:29,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 00:27:29,264 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:27:29,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:27:29,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:27:29,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:27:29,264 INFO L87 Difference]: Start difference. First operand 159 states and 320 transitions. Second operand 3 states. [2018-11-23 00:27:29,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:27:29,278 INFO L93 Difference]: Finished difference Result 102 states and 230 transitions. [2018-11-23 00:27:29,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:27:29,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-23 00:27:29,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:27:29,279 INFO L225 Difference]: With dead ends: 102 [2018-11-23 00:27:29,279 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 00:27:29,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:27:29,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 00:27:29,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 00:27:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 00:27:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 00:27:29,280 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-23 00:27:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:27:29,280 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:27:29,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:27:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 00:27:29,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 00:27:29,283 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 00:27:29,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:27:29 BasicIcfg [2018-11-23 00:27:29,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:27:29,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:27:29,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:27:29,285 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:27:29,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:27:28" (3/4) ... [2018-11-23 00:27:29,288 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 00:27:29,294 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-11-23 00:27:29,297 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 00:27:29,297 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 00:27:29,328 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6df201d0-f6f8-4256-9dc3-1e1ce7e0f748/bin-2019/utaipan/witness.graphml [2018-11-23 00:27:29,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:27:29,329 INFO L168 Benchmark]: Toolchain (without parser) took 1375.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -103.4 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:27:29,330 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:27:29,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -194.5 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-23 00:27:29,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 00:27:29,331 INFO L168 Benchmark]: Boogie Preprocessor took 17.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:27:29,331 INFO L168 Benchmark]: RCFGBuilder took 348.95 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-11-23 00:27:29,332 INFO L168 Benchmark]: TraceAbstraction took 579.39 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2018-11-23 00:27:29,332 INFO L168 Benchmark]: Witness Printer took 43.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:27:29,334 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -194.5 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 348.95 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 579.39 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * Witness Printer took 43.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 648]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 663]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 648]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 3 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 307 SDtfs, 114 SDslu, 125 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...