./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/locks/test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16b9ec98922e529d9b7488fe4b8a5dfd7426fa85 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 08:34:31,914 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:34:31,915 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:34:31,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:34:31,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:34:31,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:34:31,924 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:34:31,925 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:34:31,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:34:31,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:34:31,927 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:34:31,927 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:34:31,928 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:34:31,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:34:31,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:34:31,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:34:31,930 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:34:31,932 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:34:31,933 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:34:31,934 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:34:31,935 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:34:31,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:34:31,937 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:34:31,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:34:31,937 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:34:31,938 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:34:31,939 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:34:31,939 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:34:31,940 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:34:31,940 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:34:31,941 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:34:31,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:34:31,941 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:34:31,941 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:34:31,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:34:31,942 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:34:31,943 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 08:34:31,954 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:34:31,954 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:34:31,955 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:34:31,955 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:34:31,955 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:34:31,955 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 08:34:31,955 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 08:34:31,955 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 08:34:31,955 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 08:34:31,956 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 08:34:31,956 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 08:34:31,956 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:34:31,956 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:34:31,956 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:34:31,956 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:34:31,956 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:34:31,957 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:34:31,957 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 08:34:31,957 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 08:34:31,957 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 08:34:31,957 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:34:31,957 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:34:31,957 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 08:34:31,957 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:34:31,958 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 08:34:31,958 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:34:31,958 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:34:31,958 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 08:34:31,958 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:34:31,958 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:34:31,958 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 08:34:31,959 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 08:34:31,959 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer 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(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 16b9ec98922e529d9b7488fe4b8a5dfd7426fa85 [2018-11-18 08:34:31,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:34:31,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:34:31,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:34:31,991 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:34:31,992 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:34:31,992 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/../../sv-benchmarks/c/locks/test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 08:34:32,035 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/data/53ea5c663/94f0a922d6e44984a14d7919c1570cad/FLAG37770626c [2018-11-18 08:34:32,442 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:34:32,442 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/sv-benchmarks/c/locks/test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 08:34:32,447 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/data/53ea5c663/94f0a922d6e44984a14d7919c1570cad/FLAG37770626c [2018-11-18 08:34:32,456 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/data/53ea5c663/94f0a922d6e44984a14d7919c1570cad [2018-11-18 08:34:32,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:34:32,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:34:32,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:32,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:34:32,462 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:34:32,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6654e84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32, skipping insertion in model container [2018-11-18 08:34:32,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:34:32,485 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:34:32,597 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:32,599 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:34:32,617 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:32,625 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:34:32,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32 WrapperNode [2018-11-18 08:34:32,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:32,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:32,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:34:32,626 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:34:32,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:32,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:34:32,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:34:32,648 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:34:32,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:34:32,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:34:32,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:34:32,701 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:34:32,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:34:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:34:32,923 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:34:32,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:32 BoogieIcfgContainer [2018-11-18 08:34:32,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:34:32,924 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 08:34:32,924 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 08:34:32,926 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 08:34:32,927 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:32,927 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:34:32" (1/3) ... [2018-11-18 08:34:32,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@731e3a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:32, skipping insertion in model container [2018-11-18 08:34:32,928 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:32,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (2/3) ... [2018-11-18 08:34:32,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@731e3a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:32, skipping insertion in model container [2018-11-18 08:34:32,928 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:32,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:32" (3/3) ... [2018-11-18 08:34:32,930 INFO L375 chiAutomizerObserver]: Analyzing ICFG test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 08:34:32,966 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:34:32,966 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 08:34:32,966 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 08:34:32,966 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 08:34:32,966 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:34:32,966 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:34:32,967 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 08:34:32,967 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:34:32,967 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 08:34:32,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states. [2018-11-18 08:34:32,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 39 [2018-11-18 08:34:32,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:32,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:32,995 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:32,995 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:32,995 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 08:34:32,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states. [2018-11-18 08:34:32,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 39 [2018-11-18 08:34:32,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:32,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:32,998 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:32,998 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:33,003 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 15#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 14#L181-1true [2018-11-18 08:34:33,003 INFO L796 eck$LassoCheckResult]: Loop: 14#L181-1true assume true; 23#L45-1true assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 3#L47true assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 24#L76true assume 0 != main_~p1~0;main_~lk1~0 := 1; 18#L76-2true assume 0 != main_~p2~0;main_~lk2~0 := 1; 4#L80-1true assume 0 != main_~p3~0;main_~lk3~0 := 1; 11#L84-1true assume 0 != main_~p4~0;main_~lk4~0 := 1; 46#L88-1true assume 0 != main_~p5~0;main_~lk5~0 := 1; 35#L92-1true assume 0 != main_~p6~0;main_~lk6~0 := 1; 16#L96-1true assume 0 != main_~p7~0;main_~lk7~0 := 1; 30#L100-1true assume !(0 != main_~p8~0); 8#L104-1true assume 0 != main_~p9~0;main_~lk9~0 := 1; 43#L108-1true assume 0 != main_~p10~0;main_~lk10~0 := 1; 32#L112-1true assume 0 != main_~p11~0;main_~lk11~0 := 1; 39#L116-1true assume 0 != main_~p12~0;main_~lk12~0 := 1; 26#L120-1true assume !(0 != main_~p1~0); 9#L126-1true assume !(0 != main_~p2~0); 27#L131-1true assume !(0 != main_~p3~0); 37#L136-1true assume !(0 != main_~p4~0); 44#L141-1true assume !(0 != main_~p5~0); 6#L146-1true assume !(0 != main_~p6~0); 21#L151-1true assume !(0 != main_~p7~0); 36#L156-1true assume !(0 != main_~p8~0); 42#L161-1true assume !(0 != main_~p9~0); 5#L166-1true assume !(0 != main_~p10~0); 19#L171-1true assume !(0 != main_~p11~0); 33#L176-1true assume !(0 != main_~p12~0); 14#L181-1true [2018-11-18 08:34:33,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,007 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 08:34:33,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1468030446, now seen corresponding path program 1 times [2018-11-18 08:34:33,064 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:33,123 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:33,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:33,138 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-11-18 08:34:33,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,175 INFO L93 Difference]: Finished difference Result 89 states and 156 transitions. [2018-11-18 08:34:33,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:33,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 156 transitions. [2018-11-18 08:34:33,180 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2018-11-18 08:34:33,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 79 states and 125 transitions. [2018-11-18 08:34:33,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79 [2018-11-18 08:34:33,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2018-11-18 08:34:33,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 125 transitions. [2018-11-18 08:34:33,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,188 INFO L705 BuchiCegarLoop]: Abstraction has 79 states and 125 transitions. [2018-11-18 08:34:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 125 transitions. [2018-11-18 08:34:33,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-11-18 08:34:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-11-18 08:34:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 125 transitions. [2018-11-18 08:34:33,214 INFO L728 BuchiCegarLoop]: Abstraction has 79 states and 125 transitions. [2018-11-18 08:34:33,214 INFO L608 BuchiCegarLoop]: Abstraction has 79 states and 125 transitions. [2018-11-18 08:34:33,214 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 08:34:33,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 125 transitions. [2018-11-18 08:34:33,216 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2018-11-18 08:34:33,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:33,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:33,217 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:33,217 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:33,217 INFO L794 eck$LassoCheckResult]: Stem: 187#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 168#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 166#L181-1 [2018-11-18 08:34:33,217 INFO L796 eck$LassoCheckResult]: Loop: 166#L181-1 assume true; 167#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 144#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 145#L76 assume !(0 != main_~p1~0); 189#L76-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 222#L80-1 assume 0 != main_~p3~0;main_~lk3~0 := 1; 221#L84-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 220#L88-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 219#L92-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 218#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 217#L100-1 assume !(0 != main_~p8~0); 216#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 215#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 214#L112-1 assume 0 != main_~p11~0;main_~lk11~0 := 1; 213#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 212#L120-1 assume !(0 != main_~p1~0); 211#L126-1 assume !(0 != main_~p2~0); 209#L131-1 assume !(0 != main_~p3~0); 207#L136-1 assume !(0 != main_~p4~0); 188#L141-1 assume !(0 != main_~p5~0); 153#L146-1 assume !(0 != main_~p6~0); 155#L151-1 assume !(0 != main_~p7~0); 200#L156-1 assume !(0 != main_~p8~0); 199#L161-1 assume !(0 != main_~p9~0); 197#L166-1 assume !(0 != main_~p10~0); 194#L171-1 assume !(0 != main_~p11~0); 181#L176-1 assume !(0 != main_~p12~0); 166#L181-1 [2018-11-18 08:34:33,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,218 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 08:34:33,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1602043952, now seen corresponding path program 1 times [2018-11-18 08:34:33,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,223 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,223 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:33,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:33,252 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:33,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:33,253 INFO L87 Difference]: Start difference. First operand 79 states and 125 transitions. cyclomatic complexity: 48 Second operand 3 states. [2018-11-18 08:34:33,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,293 INFO L93 Difference]: Finished difference Result 154 states and 242 transitions. [2018-11-18 08:34:33,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:33,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 242 transitions. [2018-11-18 08:34:33,296 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 152 [2018-11-18 08:34:33,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 154 states and 242 transitions. [2018-11-18 08:34:33,298 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2018-11-18 08:34:33,298 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2018-11-18 08:34:33,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 242 transitions. [2018-11-18 08:34:33,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,299 INFO L705 BuchiCegarLoop]: Abstraction has 154 states and 242 transitions. [2018-11-18 08:34:33,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 242 transitions. [2018-11-18 08:34:33,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-11-18 08:34:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-11-18 08:34:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 242 transitions. [2018-11-18 08:34:33,309 INFO L728 BuchiCegarLoop]: Abstraction has 154 states and 242 transitions. [2018-11-18 08:34:33,309 INFO L608 BuchiCegarLoop]: Abstraction has 154 states and 242 transitions. [2018-11-18 08:34:33,309 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 08:34:33,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 242 transitions. [2018-11-18 08:34:33,311 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 152 [2018-11-18 08:34:33,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:33,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:33,311 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:33,311 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:33,312 INFO L794 eck$LassoCheckResult]: Stem: 436#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 411#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 412#L181-1 [2018-11-18 08:34:33,312 INFO L796 eck$LassoCheckResult]: Loop: 412#L181-1 assume true; 472#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 470#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 468#L76 assume !(0 != main_~p1~0); 465#L76-2 assume !(0 != main_~p2~0); 463#L80-1 assume 0 != main_~p3~0;main_~lk3~0 := 1; 461#L84-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 459#L88-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 457#L92-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 455#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 453#L100-1 assume !(0 != main_~p8~0); 451#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 449#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 447#L112-1 assume 0 != main_~p11~0;main_~lk11~0 := 1; 445#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 443#L120-1 assume !(0 != main_~p1~0); 444#L126-1 assume !(0 != main_~p2~0); 510#L131-1 assume !(0 != main_~p3~0); 506#L136-1 assume !(0 != main_~p4~0); 502#L141-1 assume !(0 != main_~p5~0); 498#L146-1 assume !(0 != main_~p6~0); 494#L151-1 assume !(0 != main_~p7~0); 489#L156-1 assume !(0 != main_~p8~0); 486#L161-1 assume !(0 != main_~p9~0); 484#L166-1 assume !(0 != main_~p10~0); 479#L171-1 assume !(0 != main_~p11~0); 476#L176-1 assume !(0 != main_~p12~0); 412#L181-1 [2018-11-18 08:34:33,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,312 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-11-18 08:34:33,312 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,319 INFO L82 PathProgramCache]: Analyzing trace with hash 887485010, now seen corresponding path program 1 times [2018-11-18 08:34:33,319 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,320 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:33,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:33,348 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:33,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:33,348 INFO L87 Difference]: Start difference. First operand 154 states and 242 transitions. cyclomatic complexity: 92 Second operand 3 states. [2018-11-18 08:34:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,371 INFO L93 Difference]: Finished difference Result 302 states and 470 transitions. [2018-11-18 08:34:33,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:33,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 302 states and 470 transitions. [2018-11-18 08:34:33,374 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 300 [2018-11-18 08:34:33,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 302 states to 302 states and 470 transitions. [2018-11-18 08:34:33,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 302 [2018-11-18 08:34:33,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 302 [2018-11-18 08:34:33,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 302 states and 470 transitions. [2018-11-18 08:34:33,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,379 INFO L705 BuchiCegarLoop]: Abstraction has 302 states and 470 transitions. [2018-11-18 08:34:33,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states and 470 transitions. [2018-11-18 08:34:33,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2018-11-18 08:34:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2018-11-18 08:34:33,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 470 transitions. [2018-11-18 08:34:33,391 INFO L728 BuchiCegarLoop]: Abstraction has 302 states and 470 transitions. [2018-11-18 08:34:33,391 INFO L608 BuchiCegarLoop]: Abstraction has 302 states and 470 transitions. [2018-11-18 08:34:33,392 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 08:34:33,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 470 transitions. [2018-11-18 08:34:33,393 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 300 [2018-11-18 08:34:33,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:33,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:33,394 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:33,394 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:33,394 INFO L794 eck$LassoCheckResult]: Stem: 899#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 869#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 870#L181-1 [2018-11-18 08:34:33,394 INFO L796 eck$LassoCheckResult]: Loop: 870#L181-1 assume true; 944#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 942#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 940#L76 assume !(0 != main_~p1~0); 936#L76-2 assume !(0 != main_~p2~0); 934#L80-1 assume !(0 != main_~p3~0); 932#L84-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 930#L88-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 928#L92-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 926#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 924#L100-1 assume !(0 != main_~p8~0); 922#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 920#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 918#L112-1 assume 0 != main_~p11~0;main_~lk11~0 := 1; 916#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 913#L120-1 assume !(0 != main_~p1~0); 914#L126-1 assume !(0 != main_~p2~0); 983#L131-1 assume !(0 != main_~p3~0); 980#L136-1 assume !(0 != main_~p4~0); 976#L141-1 assume !(0 != main_~p5~0); 972#L146-1 assume !(0 != main_~p6~0); 968#L151-1 assume !(0 != main_~p7~0); 963#L156-1 assume !(0 != main_~p8~0); 960#L161-1 assume !(0 != main_~p9~0); 956#L166-1 assume !(0 != main_~p10~0); 951#L171-1 assume !(0 != main_~p11~0); 948#L176-1 assume !(0 != main_~p12~0); 870#L181-1 [2018-11-18 08:34:33,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,395 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2018-11-18 08:34:33,395 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1106339728, now seen corresponding path program 1 times [2018-11-18 08:34:33,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,403 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:33,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:33,419 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:33,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:33,420 INFO L87 Difference]: Start difference. First operand 302 states and 470 transitions. cyclomatic complexity: 176 Second operand 3 states. [2018-11-18 08:34:33,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,443 INFO L93 Difference]: Finished difference Result 594 states and 914 transitions. [2018-11-18 08:34:33,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:33,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 594 states and 914 transitions. [2018-11-18 08:34:33,447 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 592 [2018-11-18 08:34:33,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 594 states to 594 states and 914 transitions. [2018-11-18 08:34:33,450 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 594 [2018-11-18 08:34:33,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 594 [2018-11-18 08:34:33,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 594 states and 914 transitions. [2018-11-18 08:34:33,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,452 INFO L705 BuchiCegarLoop]: Abstraction has 594 states and 914 transitions. [2018-11-18 08:34:33,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states and 914 transitions. [2018-11-18 08:34:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2018-11-18 08:34:33,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2018-11-18 08:34:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 914 transitions. [2018-11-18 08:34:33,468 INFO L728 BuchiCegarLoop]: Abstraction has 594 states and 914 transitions. [2018-11-18 08:34:33,468 INFO L608 BuchiCegarLoop]: Abstraction has 594 states and 914 transitions. [2018-11-18 08:34:33,468 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 08:34:33,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 594 states and 914 transitions. [2018-11-18 08:34:33,472 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 592 [2018-11-18 08:34:33,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:33,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:33,472 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:33,472 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:33,473 INFO L794 eck$LassoCheckResult]: Stem: 1801#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1770#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 1771#L181-1 [2018-11-18 08:34:33,473 INFO L796 eck$LassoCheckResult]: Loop: 1771#L181-1 assume true; 1881#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 1877#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 1873#L76 assume !(0 != main_~p1~0); 1866#L76-2 assume !(0 != main_~p2~0); 1859#L80-1 assume !(0 != main_~p3~0); 1852#L84-1 assume !(0 != main_~p4~0); 1853#L88-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 1843#L92-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 1844#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 1835#L100-1 assume !(0 != main_~p8~0); 1836#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 1827#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 1828#L112-1 assume 0 != main_~p11~0;main_~lk11~0 := 1; 1819#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 1820#L120-1 assume !(0 != main_~p1~0); 1958#L126-1 assume !(0 != main_~p2~0); 1948#L131-1 assume !(0 != main_~p3~0); 1945#L136-1 assume !(0 != main_~p4~0); 1924#L141-1 assume !(0 != main_~p5~0); 1922#L146-1 assume !(0 != main_~p6~0); 1918#L151-1 assume !(0 != main_~p7~0); 1915#L156-1 assume !(0 != main_~p8~0); 1912#L161-1 assume !(0 != main_~p9~0); 1910#L166-1 assume !(0 != main_~p10~0); 1901#L171-1 assume !(0 != main_~p11~0); 1890#L176-1 assume !(0 != main_~p12~0); 1771#L181-1 [2018-11-18 08:34:33,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,473 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2018-11-18 08:34:33,473 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1529041554, now seen corresponding path program 1 times [2018-11-18 08:34:33,481 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,481 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,482 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:33,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:33,502 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:33,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:33,503 INFO L87 Difference]: Start difference. First operand 594 states and 914 transitions. cyclomatic complexity: 336 Second operand 3 states. [2018-11-18 08:34:33,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,521 INFO L93 Difference]: Finished difference Result 1170 states and 1778 transitions. [2018-11-18 08:34:33,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:33,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1170 states and 1778 transitions. [2018-11-18 08:34:33,529 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1168 [2018-11-18 08:34:33,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1170 states to 1170 states and 1778 transitions. [2018-11-18 08:34:33,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1170 [2018-11-18 08:34:33,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1170 [2018-11-18 08:34:33,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1170 states and 1778 transitions. [2018-11-18 08:34:33,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,538 INFO L705 BuchiCegarLoop]: Abstraction has 1170 states and 1778 transitions. [2018-11-18 08:34:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states and 1778 transitions. [2018-11-18 08:34:33,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1170. [2018-11-18 08:34:33,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1170 states. [2018-11-18 08:34:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1778 transitions. [2018-11-18 08:34:33,557 INFO L728 BuchiCegarLoop]: Abstraction has 1170 states and 1778 transitions. [2018-11-18 08:34:33,557 INFO L608 BuchiCegarLoop]: Abstraction has 1170 states and 1778 transitions. [2018-11-18 08:34:33,557 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 08:34:33,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1170 states and 1778 transitions. [2018-11-18 08:34:33,561 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1168 [2018-11-18 08:34:33,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:33,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:33,562 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:33,562 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:33,562 INFO L794 eck$LassoCheckResult]: Stem: 3565#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 3540#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 3541#L181-1 [2018-11-18 08:34:33,562 INFO L796 eck$LassoCheckResult]: Loop: 3541#L181-1 assume true; 3678#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 3676#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 3673#L76 assume !(0 != main_~p1~0); 3670#L76-2 assume !(0 != main_~p2~0); 3621#L80-1 assume !(0 != main_~p3~0); 3617#L84-1 assume !(0 != main_~p4~0); 3605#L88-1 assume !(0 != main_~p5~0); 3606#L92-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 3841#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 3594#L100-1 assume !(0 != main_~p8~0); 3595#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 3587#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 3584#L112-1 assume 0 != main_~p11~0;main_~lk11~0 := 1; 3585#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 3811#L120-1 assume !(0 != main_~p1~0); 3785#L126-1 assume !(0 != main_~p2~0); 3781#L131-1 assume !(0 != main_~p3~0); 3765#L136-1 assume !(0 != main_~p4~0); 3763#L141-1 assume !(0 != main_~p5~0); 3725#L146-1 assume !(0 != main_~p6~0); 3721#L151-1 assume !(0 != main_~p7~0); 3718#L156-1 assume !(0 != main_~p8~0); 3717#L161-1 assume !(0 != main_~p9~0); 3715#L166-1 assume !(0 != main_~p10~0); 3704#L171-1 assume !(0 != main_~p11~0); 3683#L176-1 assume !(0 != main_~p12~0); 3541#L181-1 [2018-11-18 08:34:33,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,563 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2018-11-18 08:34:33,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,566 INFO L82 PathProgramCache]: Analyzing trace with hash 711393104, now seen corresponding path program 1 times [2018-11-18 08:34:33,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,567 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:33,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:33,585 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:33,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:33,585 INFO L87 Difference]: Start difference. First operand 1170 states and 1778 transitions. cyclomatic complexity: 640 Second operand 3 states. [2018-11-18 08:34:33,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,603 INFO L93 Difference]: Finished difference Result 2306 states and 3458 transitions. [2018-11-18 08:34:33,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:33,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2306 states and 3458 transitions. [2018-11-18 08:34:33,614 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2304 [2018-11-18 08:34:33,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2306 states to 2306 states and 3458 transitions. [2018-11-18 08:34:33,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2306 [2018-11-18 08:34:33,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2306 [2018-11-18 08:34:33,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2306 states and 3458 transitions. [2018-11-18 08:34:33,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,623 INFO L705 BuchiCegarLoop]: Abstraction has 2306 states and 3458 transitions. [2018-11-18 08:34:33,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states and 3458 transitions. [2018-11-18 08:34:33,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2306. [2018-11-18 08:34:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2306 states. [2018-11-18 08:34:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 3458 transitions. [2018-11-18 08:34:33,646 INFO L728 BuchiCegarLoop]: Abstraction has 2306 states and 3458 transitions. [2018-11-18 08:34:33,646 INFO L608 BuchiCegarLoop]: Abstraction has 2306 states and 3458 transitions. [2018-11-18 08:34:33,646 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-18 08:34:33,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2306 states and 3458 transitions. [2018-11-18 08:34:33,653 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2304 [2018-11-18 08:34:33,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:33,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:33,654 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:33,654 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:33,654 INFO L794 eck$LassoCheckResult]: Stem: 7046#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 7021#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 7022#L181-1 [2018-11-18 08:34:33,655 INFO L796 eck$LassoCheckResult]: Loop: 7022#L181-1 assume true; 7119#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 7117#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 7115#L76 assume !(0 != main_~p1~0); 7111#L76-2 assume !(0 != main_~p2~0); 7107#L80-1 assume !(0 != main_~p3~0); 7103#L84-1 assume !(0 != main_~p4~0); 7099#L88-1 assume !(0 != main_~p5~0); 7095#L92-1 assume !(0 != main_~p6~0); 7093#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 7091#L100-1 assume !(0 != main_~p8~0); 7089#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 7087#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 7085#L112-1 assume 0 != main_~p11~0;main_~lk11~0 := 1; 7083#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 7080#L120-1 assume !(0 != main_~p1~0); 7081#L126-1 assume !(0 != main_~p2~0); 7158#L131-1 assume !(0 != main_~p3~0); 7154#L136-1 assume !(0 != main_~p4~0); 7150#L141-1 assume !(0 != main_~p5~0); 7146#L146-1 assume !(0 != main_~p6~0); 7143#L151-1 assume !(0 != main_~p7~0); 7138#L156-1 assume !(0 != main_~p8~0); 7135#L161-1 assume !(0 != main_~p9~0); 7131#L166-1 assume !(0 != main_~p10~0); 7126#L171-1 assume !(0 != main_~p11~0); 7123#L176-1 assume !(0 != main_~p12~0); 7022#L181-1 [2018-11-18 08:34:33,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,655 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 7 times [2018-11-18 08:34:33,655 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,659 INFO L82 PathProgramCache]: Analyzing trace with hash -977550638, now seen corresponding path program 1 times [2018-11-18 08:34:33,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:33,684 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:33,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:33,685 INFO L87 Difference]: Start difference. First operand 2306 states and 3458 transitions. cyclomatic complexity: 1216 Second operand 3 states. [2018-11-18 08:34:33,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,716 INFO L93 Difference]: Finished difference Result 4546 states and 6722 transitions. [2018-11-18 08:34:33,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:33,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4546 states and 6722 transitions. [2018-11-18 08:34:33,736 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 4544 [2018-11-18 08:34:33,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4546 states to 4546 states and 6722 transitions. [2018-11-18 08:34:33,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4546 [2018-11-18 08:34:33,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4546 [2018-11-18 08:34:33,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4546 states and 6722 transitions. [2018-11-18 08:34:33,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,756 INFO L705 BuchiCegarLoop]: Abstraction has 4546 states and 6722 transitions. [2018-11-18 08:34:33,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states and 6722 transitions. [2018-11-18 08:34:33,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546. [2018-11-18 08:34:33,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4546 states. [2018-11-18 08:34:33,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6722 transitions. [2018-11-18 08:34:33,809 INFO L728 BuchiCegarLoop]: Abstraction has 4546 states and 6722 transitions. [2018-11-18 08:34:33,809 INFO L608 BuchiCegarLoop]: Abstraction has 4546 states and 6722 transitions. [2018-11-18 08:34:33,809 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-18 08:34:33,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4546 states and 6722 transitions. [2018-11-18 08:34:33,823 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 4544 [2018-11-18 08:34:33,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:33,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:33,824 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:33,824 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:33,824 INFO L794 eck$LassoCheckResult]: Stem: 13907#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 13880#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 13881#L181-1 [2018-11-18 08:34:33,824 INFO L796 eck$LassoCheckResult]: Loop: 13881#L181-1 assume true; 14526#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 14196#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 14197#L76 assume !(0 != main_~p1~0); 14283#L76-2 assume !(0 != main_~p2~0); 14281#L80-1 assume !(0 != main_~p3~0); 14279#L84-1 assume !(0 != main_~p4~0); 14277#L88-1 assume !(0 != main_~p5~0); 14274#L92-1 assume !(0 != main_~p6~0); 14270#L96-1 assume !(0 != main_~p7~0); 14271#L100-1 assume !(0 != main_~p8~0); 14320#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 14318#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 14316#L112-1 assume 0 != main_~p11~0;main_~lk11~0 := 1; 14314#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 14311#L120-1 assume !(0 != main_~p1~0); 14312#L126-1 assume !(0 != main_~p2~0); 14178#L131-1 assume !(0 != main_~p3~0); 14180#L136-1 assume !(0 != main_~p4~0); 14168#L141-1 assume !(0 != main_~p5~0); 14163#L146-1 assume !(0 != main_~p6~0); 14165#L151-1 assume !(0 != main_~p7~0); 14549#L156-1 assume !(0 != main_~p8~0); 14547#L161-1 assume !(0 != main_~p9~0); 14545#L166-1 assume !(0 != main_~p10~0); 14540#L171-1 assume !(0 != main_~p11~0); 14537#L176-1 assume !(0 != main_~p12~0); 13881#L181-1 [2018-11-18 08:34:33,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,824 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 8 times [2018-11-18 08:34:33,825 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1323271952, now seen corresponding path program 1 times [2018-11-18 08:34:33,828 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,828 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,829 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:33,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:33,856 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:33,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:33,857 INFO L87 Difference]: Start difference. First operand 4546 states and 6722 transitions. cyclomatic complexity: 2304 Second operand 3 states. [2018-11-18 08:34:33,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,883 INFO L93 Difference]: Finished difference Result 8962 states and 13058 transitions. [2018-11-18 08:34:33,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:33,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8962 states and 13058 transitions. [2018-11-18 08:34:33,911 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 8960 [2018-11-18 08:34:33,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8962 states to 8962 states and 13058 transitions. [2018-11-18 08:34:33,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8962 [2018-11-18 08:34:33,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8962 [2018-11-18 08:34:33,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8962 states and 13058 transitions. [2018-11-18 08:34:33,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,952 INFO L705 BuchiCegarLoop]: Abstraction has 8962 states and 13058 transitions. [2018-11-18 08:34:33,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8962 states and 13058 transitions. [2018-11-18 08:34:34,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8962 to 8962. [2018-11-18 08:34:34,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8962 states. [2018-11-18 08:34:34,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8962 states to 8962 states and 13058 transitions. [2018-11-18 08:34:34,051 INFO L728 BuchiCegarLoop]: Abstraction has 8962 states and 13058 transitions. [2018-11-18 08:34:34,051 INFO L608 BuchiCegarLoop]: Abstraction has 8962 states and 13058 transitions. [2018-11-18 08:34:34,051 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-18 08:34:34,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8962 states and 13058 transitions. [2018-11-18 08:34:34,071 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 8960 [2018-11-18 08:34:34,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:34,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:34,072 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:34,072 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:34,072 INFO L794 eck$LassoCheckResult]: Stem: 27421#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 27393#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 27394#L181-1 [2018-11-18 08:34:34,072 INFO L796 eck$LassoCheckResult]: Loop: 27394#L181-1 assume true; 27529#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 27527#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 27523#L76 assume !(0 != main_~p1~0); 27521#L76-2 assume !(0 != main_~p2~0); 27517#L80-1 assume !(0 != main_~p3~0); 27513#L84-1 assume !(0 != main_~p4~0); 27509#L88-1 assume !(0 != main_~p5~0); 27505#L92-1 assume !(0 != main_~p6~0); 27501#L96-1 assume !(0 != main_~p7~0); 27499#L100-1 assume !(0 != main_~p8~0); 27495#L104-1 assume !(0 != main_~p9~0); 27493#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 27491#L112-1 assume 0 != main_~p11~0;main_~lk11~0 := 1; 27489#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 27485#L120-1 assume !(0 != main_~p1~0); 27482#L126-1 assume !(0 != main_~p2~0); 27483#L131-1 assume !(0 != main_~p3~0); 27564#L136-1 assume !(0 != main_~p4~0); 27560#L141-1 assume !(0 != main_~p5~0); 27556#L146-1 assume !(0 != main_~p6~0); 27552#L151-1 assume !(0 != main_~p7~0); 27548#L156-1 assume !(0 != main_~p8~0); 27544#L161-1 assume !(0 != main_~p9~0); 27541#L166-1 assume !(0 != main_~p10~0); 27536#L171-1 assume !(0 != main_~p11~0); 27533#L176-1 assume !(0 != main_~p12~0); 27394#L181-1 [2018-11-18 08:34:34,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:34,072 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 9 times [2018-11-18 08:34:34,073 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:34,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:34,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:34,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:34,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:34,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:34,076 INFO L82 PathProgramCache]: Analyzing trace with hash 302203598, now seen corresponding path program 1 times [2018-11-18 08:34:34,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:34,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:34,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:34,077 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:34,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:34,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:34,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:34,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:34,096 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:34,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:34,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:34,097 INFO L87 Difference]: Start difference. First operand 8962 states and 13058 transitions. cyclomatic complexity: 4352 Second operand 3 states. [2018-11-18 08:34:34,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:34,179 INFO L93 Difference]: Finished difference Result 17666 states and 25346 transitions. [2018-11-18 08:34:34,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:34,180 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17666 states and 25346 transitions. [2018-11-18 08:34:34,241 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 17664 [2018-11-18 08:34:34,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17666 states to 17666 states and 25346 transitions. [2018-11-18 08:34:34,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17666 [2018-11-18 08:34:34,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17666 [2018-11-18 08:34:34,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17666 states and 25346 transitions. [2018-11-18 08:34:34,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:34,314 INFO L705 BuchiCegarLoop]: Abstraction has 17666 states and 25346 transitions. [2018-11-18 08:34:34,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17666 states and 25346 transitions. [2018-11-18 08:34:34,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17666 to 17666. [2018-11-18 08:34:34,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17666 states. [2018-11-18 08:34:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17666 states to 17666 states and 25346 transitions. [2018-11-18 08:34:34,526 INFO L728 BuchiCegarLoop]: Abstraction has 17666 states and 25346 transitions. [2018-11-18 08:34:34,526 INFO L608 BuchiCegarLoop]: Abstraction has 17666 states and 25346 transitions. [2018-11-18 08:34:34,527 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-18 08:34:34,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17666 states and 25346 transitions. [2018-11-18 08:34:34,574 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 17664 [2018-11-18 08:34:34,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:34,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:34,574 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:34,575 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:34,575 INFO L794 eck$LassoCheckResult]: Stem: 54057#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 54026#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 54027#L181-1 [2018-11-18 08:34:34,575 INFO L796 eck$LassoCheckResult]: Loop: 54027#L181-1 assume true; 54252#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 54250#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 54248#L76 assume !(0 != main_~p1~0); 54238#L76-2 assume !(0 != main_~p2~0); 54239#L80-1 assume !(0 != main_~p3~0); 54219#L84-1 assume !(0 != main_~p4~0); 54221#L88-1 assume !(0 != main_~p5~0); 54195#L92-1 assume !(0 != main_~p6~0); 54197#L96-1 assume !(0 != main_~p7~0); 54175#L100-1 assume !(0 != main_~p8~0); 54176#L104-1 assume !(0 != main_~p9~0); 54151#L108-1 assume !(0 != main_~p10~0); 54153#L112-1 assume 0 != main_~p11~0;main_~lk11~0 := 1; 54136#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 54137#L120-1 assume !(0 != main_~p1~0); 54292#L126-1 assume !(0 != main_~p2~0); 54288#L131-1 assume !(0 != main_~p3~0); 54284#L136-1 assume !(0 != main_~p4~0); 54280#L141-1 assume !(0 != main_~p5~0); 54276#L146-1 assume !(0 != main_~p6~0); 54274#L151-1 assume !(0 != main_~p7~0); 54272#L156-1 assume !(0 != main_~p8~0); 54268#L161-1 assume !(0 != main_~p9~0); 54264#L166-1 assume !(0 != main_~p10~0); 54260#L171-1 assume !(0 != main_~p11~0); 54257#L176-1 assume !(0 != main_~p12~0); 54027#L181-1 [2018-11-18 08:34:34,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:34,575 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 10 times [2018-11-18 08:34:34,575 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:34,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:34,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:34,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:34,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:34,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:34,579 INFO L82 PathProgramCache]: Analyzing trace with hash -977660080, now seen corresponding path program 1 times [2018-11-18 08:34:34,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:34,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:34,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:34,582 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:34,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:34,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:34,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:34,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:34,595 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:34,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:34,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:34,596 INFO L87 Difference]: Start difference. First operand 17666 states and 25346 transitions. cyclomatic complexity: 8192 Second operand 3 states. [2018-11-18 08:34:34,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:34,681 INFO L93 Difference]: Finished difference Result 34818 states and 49154 transitions. [2018-11-18 08:34:34,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:34,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34818 states and 49154 transitions. [2018-11-18 08:34:34,794 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 34816 [2018-11-18 08:34:34,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34818 states to 34818 states and 49154 transitions. [2018-11-18 08:34:34,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34818 [2018-11-18 08:34:34,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34818 [2018-11-18 08:34:34,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34818 states and 49154 transitions. [2018-11-18 08:34:34,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:34,903 INFO L705 BuchiCegarLoop]: Abstraction has 34818 states and 49154 transitions. [2018-11-18 08:34:34,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34818 states and 49154 transitions. [2018-11-18 08:34:35,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34818 to 34818. [2018-11-18 08:34:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34818 states. [2018-11-18 08:34:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34818 states to 34818 states and 49154 transitions. [2018-11-18 08:34:35,239 INFO L728 BuchiCegarLoop]: Abstraction has 34818 states and 49154 transitions. [2018-11-18 08:34:35,239 INFO L608 BuchiCegarLoop]: Abstraction has 34818 states and 49154 transitions. [2018-11-18 08:34:35,239 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-18 08:34:35,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34818 states and 49154 transitions. [2018-11-18 08:34:35,297 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 34816 [2018-11-18 08:34:35,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:35,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:35,298 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:35,298 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:35,298 INFO L794 eck$LassoCheckResult]: Stem: 106547#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 106516#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 106517#L181-1 [2018-11-18 08:34:35,298 INFO L796 eck$LassoCheckResult]: Loop: 106517#L181-1 assume true; 107234#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 107226#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 107227#L76 assume !(0 != main_~p1~0); 107204#L76-2 assume !(0 != main_~p2~0); 107206#L80-1 assume !(0 != main_~p3~0); 107186#L84-1 assume !(0 != main_~p4~0); 107188#L88-1 assume !(0 != main_~p5~0); 107331#L92-1 assume !(0 != main_~p6~0); 107327#L96-1 assume !(0 != main_~p7~0); 107325#L100-1 assume !(0 != main_~p8~0); 107321#L104-1 assume !(0 != main_~p9~0); 107316#L108-1 assume !(0 != main_~p10~0); 107312#L112-1 assume !(0 != main_~p11~0); 107308#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 107303#L120-1 assume !(0 != main_~p1~0); 107297#L126-1 assume !(0 != main_~p2~0); 107289#L131-1 assume !(0 != main_~p3~0); 107280#L136-1 assume !(0 != main_~p4~0); 107271#L141-1 assume !(0 != main_~p5~0); 107264#L146-1 assume !(0 != main_~p6~0); 107260#L151-1 assume !(0 != main_~p7~0); 107257#L156-1 assume !(0 != main_~p8~0); 107253#L161-1 assume !(0 != main_~p9~0); 107223#L166-1 assume !(0 != main_~p10~0); 107224#L171-1 assume !(0 != main_~p11~0); 107242#L176-1 assume !(0 != main_~p12~0); 106517#L181-1 [2018-11-18 08:34:35,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:35,298 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 11 times [2018-11-18 08:34:35,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:35,299 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:35,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:35,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:35,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:35,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1988777330, now seen corresponding path program 1 times [2018-11-18 08:34:35,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:35,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:35,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,303 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:35,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:35,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:35,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:35,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 08:34:35,317 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:35,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:35,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:35,317 INFO L87 Difference]: Start difference. First operand 34818 states and 49154 transitions. cyclomatic complexity: 15360 Second operand 3 states. [2018-11-18 08:34:35,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:35,431 INFO L93 Difference]: Finished difference Result 68610 states and 95234 transitions. [2018-11-18 08:34:35,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:35,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68610 states and 95234 transitions. [2018-11-18 08:34:35,591 INFO L131 ngComponentsAnalysis]: Automaton has 2048 accepting balls. 68608 [2018-11-18 08:34:35,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68610 states to 68610 states and 95234 transitions. [2018-11-18 08:34:35,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68610 [2018-11-18 08:34:35,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68610 [2018-11-18 08:34:35,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68610 states and 95234 transitions. [2018-11-18 08:34:35,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:35,800 INFO L705 BuchiCegarLoop]: Abstraction has 68610 states and 95234 transitions. [2018-11-18 08:34:35,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68610 states and 95234 transitions. [2018-11-18 08:34:36,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68610 to 68610. [2018-11-18 08:34:36,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68610 states. [2018-11-18 08:34:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68610 states to 68610 states and 95234 transitions. [2018-11-18 08:34:36,491 INFO L728 BuchiCegarLoop]: Abstraction has 68610 states and 95234 transitions. [2018-11-18 08:34:36,491 INFO L608 BuchiCegarLoop]: Abstraction has 68610 states and 95234 transitions. [2018-11-18 08:34:36,491 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-11-18 08:34:36,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68610 states and 95234 transitions. [2018-11-18 08:34:36,620 INFO L131 ngComponentsAnalysis]: Automaton has 2048 accepting balls. 68608 [2018-11-18 08:34:36,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:36,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:36,621 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:36,621 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 08:34:36,621 INFO L794 eck$LassoCheckResult]: Stem: 209983#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 209950#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 209951#L181-1 [2018-11-18 08:34:36,621 INFO L796 eck$LassoCheckResult]: Loop: 209951#L181-1 assume true; 210094#L45-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 210092#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 210089#L76 assume !(0 != main_~p1~0); 210085#L76-2 assume !(0 != main_~p2~0); 210081#L80-1 assume !(0 != main_~p3~0); 210077#L84-1 assume !(0 != main_~p4~0); 210073#L88-1 assume !(0 != main_~p5~0); 210069#L92-1 assume !(0 != main_~p6~0); 210065#L96-1 assume !(0 != main_~p7~0); 210062#L100-1 assume !(0 != main_~p8~0); 210059#L104-1 assume !(0 != main_~p9~0); 210060#L108-1 assume !(0 != main_~p10~0); 210147#L112-1 assume !(0 != main_~p11~0); 210143#L116-1 assume !(0 != main_~p12~0); 210139#L120-1 assume !(0 != main_~p1~0); 210135#L126-1 assume !(0 != main_~p2~0); 210131#L131-1 assume !(0 != main_~p3~0); 210127#L136-1 assume !(0 != main_~p4~0); 210123#L141-1 assume !(0 != main_~p5~0); 210119#L146-1 assume !(0 != main_~p6~0); 210115#L151-1 assume !(0 != main_~p7~0); 210111#L156-1 assume !(0 != main_~p8~0); 210109#L161-1 assume !(0 != main_~p9~0); 210106#L166-1 assume !(0 != main_~p10~0); 210102#L171-1 assume !(0 != main_~p11~0); 210098#L176-1 assume !(0 != main_~p12~0); 209951#L181-1 [2018-11-18 08:34:36,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:36,621 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 12 times [2018-11-18 08:34:36,621 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:36,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:36,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:36,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:36,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1719383952, now seen corresponding path program 1 times [2018-11-18 08:34:36,625 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:36,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:36,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,626 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:36,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:36,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1475963534, now seen corresponding path program 1 times [2018-11-18 08:34:36,639 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:36,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:36,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:36,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:36,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:34:36 BoogieIcfgContainer [2018-11-18 08:34:36,810 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 08:34:36,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:34:36,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:34:36,811 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:34:36,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:32" (3/4) ... [2018-11-18 08:34:36,814 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 08:34:36,853 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_047c8811-8b15-453e-b25b-84b39d30abb6/bin-2019/uautomizer/witness.graphml [2018-11-18 08:34:36,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:34:36,854 INFO L168 Benchmark]: Toolchain (without parser) took 4395.26 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 359.7 MB). Free memory was 958.5 MB in the beginning and 703.9 MB in the end (delta: 254.5 MB). Peak memory consumption was 614.2 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:36,855 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:36,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.48 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 944.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:36,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.42 ms. Allocated memory is still 1.0 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:36,856 INFO L168 Benchmark]: Boogie Preprocessor took 52.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.9 MB in the beginning and 1.2 GB in the end (delta: -217.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:36,856 INFO L168 Benchmark]: RCFGBuilder took 223.58 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:36,857 INFO L168 Benchmark]: BuchiAutomizer took 3886.34 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 195.0 MB). Free memory was 1.1 GB in the beginning and 712.3 MB in the end (delta: 426.2 MB). Peak memory consumption was 621.2 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:36,857 INFO L168 Benchmark]: Witness Printer took 42.02 ms. Allocated memory is still 1.4 GB. Free memory was 712.3 MB in the beginning and 703.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:36,862 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 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.48 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 944.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.42 ms. Allocated memory is still 1.0 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.9 MB in the beginning and 1.2 GB in the end (delta: -217.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 223.58 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3886.34 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 195.0 MB). Free memory was 1.1 GB in the beginning and 712.3 MB in the end (delta: 426.2 MB). Peak memory consumption was 621.2 MB. Max. memory is 11.5 GB. * Witness Printer took 42.02 ms. Allocated memory is still 1.4 GB. Free memory was 712.3 MB in the beginning and 703.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (11 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.11 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 68610 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 12 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 11. Minimization of nondet autom 0. Automata minimization 1.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.7s Buchi closure took 0.0s. Biggest automaton had 68610 states and ocurred in iteration 11. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1072 SDtfs, 555 SDslu, 664 SDs, 0 SdLazy, 55 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI11 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 45]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {p1=0, \result=0, p3=0, p2=0, p5=0, p10=0, p4=0, p7=0, p6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@aa7583f=0, p9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4626e65e=0, p8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@348f4a8a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38868e3=0, lk12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@369f4a47=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39dda554=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@566487ef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@98b74f0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a28eee9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34e02855=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@345a983b=0, p11=0, lk10=0, p12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@438beb69=0, lk11=0, cond=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78ee6789=1, lk3=0, lk4=0, lk5=0, lk6=0, lk1=0, lk2=0, lk7=0, lk8=0, lk9=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 45]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L43] int cond; Loop: [L45] COND TRUE 1 [L46] cond = __VERIFIER_nondet_int() [L47] COND FALSE !(cond == 0) [L50] lk1 = 0 [L52] lk2 = 0 [L54] lk3 = 0 [L56] lk4 = 0 [L58] lk5 = 0 [L60] lk6 = 0 [L62] lk7 = 0 [L64] lk8 = 0 [L66] lk9 = 0 [L68] lk10 = 0 [L70] lk11 = 0 [L72] lk12 = 0 [L76] COND FALSE !(p1 != 0) [L80] COND FALSE !(p2 != 0) [L84] COND FALSE !(p3 != 0) [L88] COND FALSE !(p4 != 0) [L92] COND FALSE !(p5 != 0) [L96] COND FALSE !(p6 != 0) [L100] COND FALSE !(p7 != 0) [L104] COND FALSE !(p8 != 0) [L108] COND FALSE !(p9 != 0) [L112] COND FALSE !(p10 != 0) [L116] COND FALSE !(p11 != 0) [L120] COND FALSE !(p12 != 0) [L126] COND FALSE !(p1 != 0) [L131] COND FALSE !(p2 != 0) [L136] COND FALSE !(p3 != 0) [L141] COND FALSE !(p4 != 0) [L146] COND FALSE !(p5 != 0) [L151] COND FALSE !(p6 != 0) [L156] COND FALSE !(p7 != 0) [L161] COND FALSE !(p8 != 0) [L166] COND FALSE !(p9 != 0) [L171] COND FALSE !(p10 != 0) [L176] COND FALSE !(p11 != 0) [L181] COND FALSE !(p12 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...