./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stateful01_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stateful01_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/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 df5358766477287cbf5f72515a3b367ae9dfb054 ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 13:00:15,957 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 13:00:15,958 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 13:00:15,965 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 13:00:15,965 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 13:00:15,966 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 13:00:15,966 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 13:00:15,967 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 13:00:15,968 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 13:00:15,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 13:00:15,969 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 13:00:15,969 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 13:00:15,969 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 13:00:15,970 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 13:00:15,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 13:00:15,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 13:00:15,971 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 13:00:15,972 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 13:00:15,973 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 13:00:15,974 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 13:00:15,975 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 13:00:15,975 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 13:00:15,976 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 13:00:15,976 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 13:00:15,977 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 13:00:15,977 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 13:00:15,977 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 13:00:15,978 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 13:00:15,978 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 13:00:15,979 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 13:00:15,979 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 13:00:15,979 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 13:00:15,979 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 13:00:15,979 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 13:00:15,980 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 13:00:15,980 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 13:00:15,980 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 13:00:15,988 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 13:00:15,988 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 13:00:15,989 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 13:00:15,989 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 13:00:15,989 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 13:00:15,989 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 13:00:15,989 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 13:00:15,989 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 13:00:15,989 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 13:00:15,989 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 13:00:15,989 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 13:00:15,989 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 13:00:15,989 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 13:00:15,990 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 13:00:15,990 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 13:00:15,990 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 13:00:15,990 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 13:00:15,990 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 13:00:15,990 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 13:00:15,990 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 13:00:15,990 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 13:00:15,990 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 13:00:15,990 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 13:00:15,991 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 13:00:15,991 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 13:00:15,991 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 13:00:15,992 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_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/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 -> df5358766477287cbf5f72515a3b367ae9dfb054 [2018-12-09 13:00:16,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 13:00:16,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 13:00:16,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 13:00:16,018 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 13:00:16,018 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 13:00:16,018 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/../../sv-benchmarks/c/pthread/stateful01_true-unreach-call.i [2018-12-09 13:00:16,053 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/data/7906adbba/54042177351f4e9bb3b5fccb8b96c2dc/FLAGf405c7d56 [2018-12-09 13:00:16,460 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 13:00:16,461 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/sv-benchmarks/c/pthread/stateful01_true-unreach-call.i [2018-12-09 13:00:16,467 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/data/7906adbba/54042177351f4e9bb3b5fccb8b96c2dc/FLAGf405c7d56 [2018-12-09 13:00:16,476 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/data/7906adbba/54042177351f4e9bb3b5fccb8b96c2dc [2018-12-09 13:00:16,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 13:00:16,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 13:00:16,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 13:00:16,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 13:00:16,481 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 13:00:16,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac4e85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16, skipping insertion in model container [2018-12-09 13:00:16,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 13:00:16,506 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 13:00:16,658 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:00:16,669 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 13:00:16,732 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:00:16,765 INFO L195 MainTranslator]: Completed translation [2018-12-09 13:00:16,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16 WrapperNode [2018-12-09 13:00:16,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 13:00:16,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 13:00:16,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 13:00:16,766 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 13:00:16,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 13:00:16,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 13:00:16,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 13:00:16,796 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 13:00:16,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... [2018-12-09 13:00:16,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 13:00:16,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 13:00:16,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 13:00:16,814 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 13:00:16,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/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 [2018-12-09 13:00:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 13:00:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 13:00:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2018-12-09 13:00:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2018-12-09 13:00:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2018-12-09 13:00:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2018-12-09 13:00:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 13:00:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-09 13:00:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 13:00:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 13:00:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 13:00:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 13:00:16,857 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 13:00:17,017 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 13:00:17,017 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 13:00:17,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:00:17 BoogieIcfgContainer [2018-12-09 13:00:17,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 13:00:17,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 13:00:17,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 13:00:17,020 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 13:00:17,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:00:16" (1/3) ... [2018-12-09 13:00:17,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ba4f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:00:17, skipping insertion in model container [2018-12-09 13:00:17,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:16" (2/3) ... [2018-12-09 13:00:17,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ba4f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:00:17, skipping insertion in model container [2018-12-09 13:00:17,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:00:17" (3/3) ... [2018-12-09 13:00:17,022 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01_true-unreach-call.i [2018-12-09 13:00:17,042 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,043 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,043 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,043 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,043 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,043 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,043 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,044 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,044 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,044 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,044 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,044 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,044 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,045 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,045 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,045 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,045 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,045 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,046 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,046 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,046 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,046 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,046 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,046 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,047 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,047 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:00:17,056 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 13:00:17,056 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 13:00:17,061 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 13:00:17,070 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 13:00:17,085 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 13:00:17,085 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 13:00:17,085 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 13:00:17,085 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 13:00:17,085 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 13:00:17,086 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 13:00:17,086 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 13:00:17,086 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 13:00:17,091 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75places, 75 transitions [2018-12-09 13:00:17,112 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 746 states. [2018-12-09 13:00:17,114 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states. [2018-12-09 13:00:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 13:00:17,125 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:00:17,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:00:17,127 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:00:17,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:00:17,131 INFO L82 PathProgramCache]: Analyzing trace with hash 744714574, now seen corresponding path program 1 times [2018-12-09 13:00:17,132 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:00:17,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:00:17,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:00:17,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:00:17,169 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:00:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:00:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:00:17,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:00:17,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 13:00:17,325 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:00:17,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 13:00:17,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 13:00:17,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 13:00:17,338 INFO L87 Difference]: Start difference. First operand 746 states. Second operand 5 states. [2018-12-09 13:00:17,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:00:17,410 INFO L93 Difference]: Finished difference Result 746 states and 1745 transitions. [2018-12-09 13:00:17,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 13:00:17,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-09 13:00:17,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:00:17,420 INFO L225 Difference]: With dead ends: 746 [2018-12-09 13:00:17,420 INFO L226 Difference]: Without dead ends: 690 [2018-12-09 13:00:17,421 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 13:00:17,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2018-12-09 13:00:17,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2018-12-09 13:00:17,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2018-12-09 13:00:17,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1644 transitions. [2018-12-09 13:00:17,462 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1644 transitions. Word has length 64 [2018-12-09 13:00:17,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:00:17,462 INFO L480 AbstractCegarLoop]: Abstraction has 690 states and 1644 transitions. [2018-12-09 13:00:17,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 13:00:17,462 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1644 transitions. [2018-12-09 13:00:17,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 13:00:17,464 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:00:17,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:00:17,465 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:00:17,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:00:17,465 INFO L82 PathProgramCache]: Analyzing trace with hash 405458, now seen corresponding path program 1 times [2018-12-09 13:00:17,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:00:17,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:00:17,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:00:17,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:00:17,468 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:00:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:00:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:00:17,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:00:17,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 13:00:17,502 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:00:17,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 13:00:17,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 13:00:17,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 13:00:17,504 INFO L87 Difference]: Start difference. First operand 690 states and 1644 transitions. Second operand 3 states. [2018-12-09 13:00:17,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:00:17,529 INFO L93 Difference]: Finished difference Result 510 states and 1068 transitions. [2018-12-09 13:00:17,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 13:00:17,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-12-09 13:00:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:00:17,531 INFO L225 Difference]: With dead ends: 510 [2018-12-09 13:00:17,531 INFO L226 Difference]: Without dead ends: 510 [2018-12-09 13:00:17,531 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 [2018-12-09 13:00:17,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2018-12-09 13:00:17,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2018-12-09 13:00:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2018-12-09 13:00:17,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 1068 transitions. [2018-12-09 13:00:17,539 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 1068 transitions. Word has length 64 [2018-12-09 13:00:17,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:00:17,539 INFO L480 AbstractCegarLoop]: Abstraction has 510 states and 1068 transitions. [2018-12-09 13:00:17,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 13:00:17,540 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 1068 transitions. [2018-12-09 13:00:17,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 13:00:17,541 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:00:17,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:00:17,541 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:00:17,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:00:17,541 INFO L82 PathProgramCache]: Analyzing trace with hash 2136323154, now seen corresponding path program 2 times [2018-12-09 13:00:17,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:00:17,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:00:17,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:00:17,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:00:17,544 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:00:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:00:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:00:17,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:00:17,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 13:00:17,629 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:00:17,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 13:00:17,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 13:00:17,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 13:00:17,630 INFO L87 Difference]: Start difference. First operand 510 states and 1068 transitions. Second operand 6 states. [2018-12-09 13:00:17,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:00:17,679 INFO L93 Difference]: Finished difference Result 677 states and 1421 transitions. [2018-12-09 13:00:17,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 13:00:17,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-12-09 13:00:17,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:00:17,681 INFO L225 Difference]: With dead ends: 677 [2018-12-09 13:00:17,681 INFO L226 Difference]: Without dead ends: 390 [2018-12-09 13:00:17,681 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 13:00:17,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2018-12-09 13:00:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2018-12-09 13:00:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2018-12-09 13:00:17,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 796 transitions. [2018-12-09 13:00:17,687 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 796 transitions. Word has length 64 [2018-12-09 13:00:17,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:00:17,688 INFO L480 AbstractCegarLoop]: Abstraction has 390 states and 796 transitions. [2018-12-09 13:00:17,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 13:00:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 796 transitions. [2018-12-09 13:00:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 13:00:17,689 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:00:17,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:00:17,689 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:00:17,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:00:17,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1530042026, now seen corresponding path program 3 times [2018-12-09 13:00:17,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:00:17,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:00:17,691 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 13:00:17,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:00:17,692 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:00:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:00:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:00:17,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:00:17,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 13:00:17,752 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:00:17,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 13:00:17,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 13:00:17,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 13:00:17,753 INFO L87 Difference]: Start difference. First operand 390 states and 796 transitions. Second operand 6 states. [2018-12-09 13:00:17,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:00:17,785 INFO L93 Difference]: Finished difference Result 388 states and 794 transitions. [2018-12-09 13:00:17,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 13:00:17,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-12-09 13:00:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:00:17,786 INFO L225 Difference]: With dead ends: 388 [2018-12-09 13:00:17,786 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 13:00:17,786 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 13:00:17,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 13:00:17,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 13:00:17,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 13:00:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 13:00:17,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2018-12-09 13:00:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:00:17,787 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 13:00:17,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 13:00:17,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 13:00:17,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 13:00:17,789 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 13:00:17,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:00:17 BasicIcfg [2018-12-09 13:00:17,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 13:00:17,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 13:00:17,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 13:00:17,791 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 13:00:17,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:00:17" (3/4) ... [2018-12-09 13:00:17,793 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 13:00:17,797 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2018-12-09 13:00:17,797 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2018-12-09 13:00:17,800 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 13:00:17,800 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 13:00:17,824 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_efdacee4-1e8c-4813-9984-08f7f3bc3f7f/bin-2019/utaipan/witness.graphml [2018-12-09 13:00:17,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 13:00:17,825 INFO L168 Benchmark]: Toolchain (without parser) took 1347.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 948.1 MB in the beginning and 901.5 MB in the end (delta: 46.6 MB). Peak memory consumption was 148.9 MB. Max. memory is 11.5 GB. [2018-12-09 13:00:17,826 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:00:17,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-12-09 13:00:17,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:00:17,826 INFO L168 Benchmark]: Boogie Preprocessor took 18.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 13:00:17,827 INFO L168 Benchmark]: RCFGBuilder took 203.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 13:00:17,827 INFO L168 Benchmark]: TraceAbstraction took 772.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 904.2 MB in the end (delta: 151.5 MB). Peak memory consumption was 151.5 MB. Max. memory is 11.5 GB. [2018-12-09 13:00:17,827 INFO L168 Benchmark]: Witness Printer took 34.02 ms. Allocated memory is still 1.1 GB. Free memory was 904.2 MB in the beginning and 901.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 13:00:17,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 286.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 203.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 772.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 904.2 MB in the end (delta: 151.5 MB). Peak memory consumption was 151.5 MB. Max. memory is 11.5 GB. * Witness Printer took 34.02 ms. Allocated memory is still 1.1 GB. Free memory was 904.2 MB in the beginning and 901.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1245]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 103 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 359 SDtfs, 172 SDslu, 738 SDs, 0 SdLazy, 87 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=746occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 59157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...