./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/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 4c4a63b42b00dbfea9a5b040626d99ec84a4e61b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-635dfa2 [2018-12-01 14:24:50,732 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 14:24:50,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 14:24:50,738 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 14:24:50,739 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 14:24:50,739 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 14:24:50,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 14:24:50,741 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 14:24:50,741 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 14:24:50,742 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 14:24:50,742 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 14:24:50,742 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 14:24:50,743 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 14:24:50,743 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 14:24:50,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 14:24:50,744 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 14:24:50,745 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 14:24:50,746 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 14:24:50,746 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 14:24:50,747 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 14:24:50,748 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 14:24:50,748 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 14:24:50,749 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 14:24:50,750 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 14:24:50,750 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 14:24:50,750 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 14:24:50,751 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 14:24:50,751 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 14:24:50,751 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 14:24:50,752 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 14:24:50,752 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 14:24:50,752 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 14:24:50,753 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 14:24:50,753 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 14:24:50,753 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 14:24:50,754 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 14:24:50,754 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 14:24:50,761 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 14:24:50,762 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 14:24:50,762 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 14:24:50,762 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 14:24:50,763 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 14:24:50,763 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 14:24:50,763 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 14:24:50,763 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 14:24:50,763 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 14:24:50,763 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 14:24:50,763 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 14:24:50,763 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 14:24:50,764 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 14:24:50,764 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 14:24:50,764 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 14:24:50,764 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 14:24:50,764 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 14:24:50,764 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 14:24:50,764 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 14:24:50,764 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 14:24:50,765 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 14:24:50,765 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 14:24:50,765 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 14:24:50,765 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 14:24:50,765 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 14:24:50,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 14:24:50,765 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 14:24:50,765 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 14:24:50,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 14:24:50,766 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 14:24:50,766 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 14:24:50,766 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 14:24:50,767 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_02ed1b07-c296-4269-a94a-13c402126754/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 -> 4c4a63b42b00dbfea9a5b040626d99ec84a4e61b [2018-12-01 14:24:50,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 14:24:50,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 14:24:50,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 14:24:50,793 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 14:24:50,793 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 14:24:50,794 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/../../sv-benchmarks/c/locks/test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c [2018-12-01 14:24:50,828 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/data/dc5d58c4c/27fd2c883d6c4eb0b6d2664da90f1cf9/FLAGbbd01f271 [2018-12-01 14:24:51,201 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 14:24:51,201 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/sv-benchmarks/c/locks/test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c [2018-12-01 14:24:51,205 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/data/dc5d58c4c/27fd2c883d6c4eb0b6d2664da90f1cf9/FLAGbbd01f271 [2018-12-01 14:24:51,216 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/data/dc5d58c4c/27fd2c883d6c4eb0b6d2664da90f1cf9 [2018-12-01 14:24:51,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 14:24:51,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 14:24:51,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 14:24:51,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 14:24:51,223 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 14:24:51,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f79c046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51, skipping insertion in model container [2018-12-01 14:24:51,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 14:24:51,245 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 14:24:51,338 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 14:24:51,341 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 14:24:51,357 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 14:24:51,365 INFO L195 MainTranslator]: Completed translation [2018-12-01 14:24:51,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51 WrapperNode [2018-12-01 14:24:51,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 14:24:51,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 14:24:51,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 14:24:51,366 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 14:24:51,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 14:24:51,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 14:24:51,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 14:24:51,423 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 14:24:51,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... [2018-12-01 14:24:51,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 14:24:51,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 14:24:51,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 14:24:51,437 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 14:24:51,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/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 [2018-12-01 14:24:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 14:24:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 14:24:51,633 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 14:24:51,633 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-01 14:24:51,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:24:51 BoogieIcfgContainer [2018-12-01 14:24:51,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 14:24:51,634 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 14:24:51,634 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 14:24:51,637 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 14:24:51,638 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 14:24:51,638 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 02:24:51" (1/3) ... [2018-12-01 14:24:51,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b11a1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 02:24:51, skipping insertion in model container [2018-12-01 14:24:51,639 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 14:24:51,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:24:51" (2/3) ... [2018-12-01 14:24:51,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b11a1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 02:24:51, skipping insertion in model container [2018-12-01 14:24:51,640 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 14:24:51,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:24:51" (3/3) ... [2018-12-01 14:24:51,641 INFO L375 chiAutomizerObserver]: Analyzing ICFG test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c [2018-12-01 14:24:51,674 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 14:24:51,674 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 14:24:51,674 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 14:24:51,675 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 14:24:51,675 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 14:24:51,675 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 14:24:51,675 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 14:24:51,675 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 14:24:51,675 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 14:24:51,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states. [2018-12-01 14:24:51,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 44 [2018-12-01 14:24:51,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:51,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:51,701 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:51,701 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:51,701 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 14:24:51,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states. [2018-12-01 14:24:51,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 44 [2018-12-01 14:24:51,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:51,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:51,703 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:51,704 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:51,708 INFO L794 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 18#L209true [2018-12-01 14:24:51,709 INFO L796 eck$LassoCheckResult]: Loop: 18#L209true assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 47#L53true 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 48#L86true assume 0 != main_~p1~0;main_~lk1~0 := 1; 34#L86-2true assume 0 != main_~p2~0;main_~lk2~0 := 1; 51#L90-1true assume !(0 != main_~p3~0); 43#L94-1true assume 0 != main_~p4~0;main_~lk4~0 := 1; 12#L98-1true assume 0 != main_~p5~0;main_~lk5~0 := 1; 4#L102-1true assume 0 != main_~p6~0;main_~lk6~0 := 1; 7#L106-1true assume 0 != main_~p7~0;main_~lk7~0 := 1; 25#L110-1true assume 0 != main_~p8~0;main_~lk8~0 := 1; 19#L114-1true assume 0 != main_~p9~0;main_~lk9~0 := 1; 35#L118-1true assume 0 != main_~p10~0;main_~lk10~0 := 1; 38#L122-1true assume !(0 != main_~p11~0); 32#L126-1true assume 0 != main_~p12~0;main_~lk12~0 := 1; 49#L130-1true assume 0 != main_~p13~0;main_~lk13~0 := 1; 40#L134-1true assume 0 != main_~p14~0;main_~lk14~0 := 1; 45#L138-1true assume !(0 != main_~p1~0); 28#L144-1true assume 0 != main_~p2~0; 23#L150true assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 9#L149true assume !(0 != main_~p3~0); 27#L154-1true assume !(0 != main_~p4~0); 33#L159-1true assume !(0 != main_~p5~0); 16#L164-1true assume !(0 != main_~p6~0); 20#L169-1true assume !(0 != main_~p7~0); 50#L174-1true assume !(0 != main_~p8~0); 5#L179-1true assume !(0 != main_~p9~0); 36#L184-1true assume !(0 != main_~p10~0); 42#L189-1true assume !(0 != main_~p11~0); 24#L194-1true assume !(0 != main_~p12~0); 30#L199-1true assume !(0 != main_~p13~0); 11#L204-1true assume 0 != main_~p14~0; 31#L210true assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 18#L209true [2018-12-01 14:24:51,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:51,712 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-01 14:24:51,713 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:51,713 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:51,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:51,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:51,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:51,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:51,778 INFO L82 PathProgramCache]: Analyzing trace with hash -878582343, now seen corresponding path program 1 times [2018-12-01 14:24:51,778 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:51,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:51,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:51,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:51,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:51,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:51,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:51,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:51,839 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:51,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:51,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:51,850 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2018-12-01 14:24:51,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:51,878 INFO L93 Difference]: Finished difference Result 98 states and 177 transitions. [2018-12-01 14:24:51,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:51,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 177 transitions. [2018-12-01 14:24:51,883 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2018-12-01 14:24:51,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 88 states and 138 transitions. [2018-12-01 14:24:51,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 88 [2018-12-01 14:24:51,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2018-12-01 14:24:51,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 138 transitions. [2018-12-01 14:24:51,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:51,891 INFO L705 BuchiCegarLoop]: Abstraction has 88 states and 138 transitions. [2018-12-01 14:24:51,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 138 transitions. [2018-12-01 14:24:51,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-12-01 14:24:51,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-12-01 14:24:51,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 138 transitions. [2018-12-01 14:24:51,914 INFO L728 BuchiCegarLoop]: Abstraction has 88 states and 138 transitions. [2018-12-01 14:24:51,914 INFO L608 BuchiCegarLoop]: Abstraction has 88 states and 138 transitions. [2018-12-01 14:24:51,914 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 14:24:51,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 138 transitions. [2018-12-01 14:24:51,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2018-12-01 14:24:51,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:51,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:51,916 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:51,916 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:51,916 INFO L794 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY 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_#t~nondet13, main_#t~nondet14, 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_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, 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;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 169#L209 [2018-12-01 14:24:51,917 INFO L796 eck$LassoCheckResult]: Loop: 169#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 206#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 207#L86 assume !(0 != main_~p1~0); 210#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 244#L90-1 assume !(0 != main_~p3~0); 243#L94-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 242#L98-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 241#L102-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 240#L106-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 239#L110-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 238#L114-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 237#L118-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 236#L122-1 assume !(0 != main_~p11~0); 235#L126-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 234#L130-1 assume 0 != main_~p13~0;main_~lk13~0 := 1; 233#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 232#L138-1 assume !(0 != main_~p1~0); 231#L144-1 assume 0 != main_~p2~0; 230#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 229#L149 assume !(0 != main_~p3~0); 227#L154-1 assume !(0 != main_~p4~0); 225#L159-1 assume !(0 != main_~p5~0); 193#L164-1 assume !(0 != main_~p6~0); 194#L169-1 assume !(0 != main_~p7~0); 160#L174-1 assume !(0 != main_~p8~0); 170#L179-1 assume !(0 != main_~p9~0); 171#L184-1 assume !(0 != main_~p10~0); 202#L189-1 assume !(0 != main_~p11~0); 192#L194-1 assume !(0 != main_~p12~0); 165#L199-1 assume !(0 != main_~p13~0); 166#L204-1 assume 0 != main_~p14~0; 168#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 169#L209 [2018-12-01 14:24:51,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:51,917 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-12-01 14:24:51,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:51,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:51,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:51,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:51,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:51,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:51,927 INFO L82 PathProgramCache]: Analyzing trace with hash -855950089, now seen corresponding path program 1 times [2018-12-01 14:24:51,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:51,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:51,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:51,928 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:24:51,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:51,960 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:51,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:51,960 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:51,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:51,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:51,961 INFO L87 Difference]: Start difference. First operand 88 states and 138 transitions. cyclomatic complexity: 52 Second operand 3 states. [2018-12-01 14:24:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:51,977 INFO L93 Difference]: Finished difference Result 173 states and 269 transitions. [2018-12-01 14:24:51,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:51,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173 states and 269 transitions. [2018-12-01 14:24:51,980 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 172 [2018-12-01 14:24:51,982 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173 states to 173 states and 269 transitions. [2018-12-01 14:24:51,982 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2018-12-01 14:24:51,983 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2018-12-01 14:24:51,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 269 transitions. [2018-12-01 14:24:51,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:51,984 INFO L705 BuchiCegarLoop]: Abstraction has 173 states and 269 transitions. [2018-12-01 14:24:51,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 269 transitions. [2018-12-01 14:24:51,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-12-01 14:24:51,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-12-01 14:24:51,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 269 transitions. [2018-12-01 14:24:51,993 INFO L728 BuchiCegarLoop]: Abstraction has 173 states and 269 transitions. [2018-12-01 14:24:51,993 INFO L608 BuchiCegarLoop]: Abstraction has 173 states and 269 transitions. [2018-12-01 14:24:51,993 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 14:24:51,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 269 transitions. [2018-12-01 14:24:51,995 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 172 [2018-12-01 14:24:51,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:51,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:51,996 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:51,996 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:51,996 INFO L794 eck$LassoCheckResult]: Stem: 473#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 474#L209 [2018-12-01 14:24:51,996 INFO L796 eck$LassoCheckResult]: Loop: 474#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 489#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 490#L86 assume !(0 != main_~p1~0); 448#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 449#L90-1 assume !(0 != main_~p3~0); 481#L94-1 assume !(0 != main_~p4~0); 483#L98-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 585#L102-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 583#L106-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 581#L110-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 579#L114-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 577#L118-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 575#L122-1 assume !(0 != main_~p11~0); 573#L126-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 571#L130-1 assume 0 != main_~p13~0;main_~lk13~0 := 1; 569#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 567#L138-1 assume !(0 != main_~p1~0); 566#L144-1 assume 0 != main_~p2~0; 565#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 564#L149 assume !(0 != main_~p3~0); 562#L154-1 assume !(0 != main_~p4~0); 442#L159-1 assume !(0 != main_~p5~0); 444#L164-1 assume !(0 != main_~p6~0); 456#L169-1 assume !(0 != main_~p7~0); 549#L174-1 assume !(0 != main_~p8~0); 547#L179-1 assume !(0 != main_~p9~0); 544#L184-1 assume !(0 != main_~p10~0); 543#L189-1 assume !(0 != main_~p11~0); 541#L194-1 assume !(0 != main_~p12~0); 521#L199-1 assume !(0 != main_~p13~0); 522#L204-1 assume 0 != main_~p14~0; 518#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 474#L209 [2018-12-01 14:24:51,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:51,996 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 3 times [2018-12-01 14:24:51,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:51,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:51,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:51,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:51,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1067277945, now seen corresponding path program 1 times [2018-12-01 14:24:52,005 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,005 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:24:52,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:52,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:52,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:52,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:52,029 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:52,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:52,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:52,030 INFO L87 Difference]: Start difference. First operand 173 states and 269 transitions. cyclomatic complexity: 100 Second operand 3 states. [2018-12-01 14:24:52,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:52,045 INFO L93 Difference]: Finished difference Result 341 states and 525 transitions. [2018-12-01 14:24:52,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:52,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 341 states and 525 transitions. [2018-12-01 14:24:52,048 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 340 [2018-12-01 14:24:52,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 341 states to 341 states and 525 transitions. [2018-12-01 14:24:52,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 341 [2018-12-01 14:24:52,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 341 [2018-12-01 14:24:52,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 341 states and 525 transitions. [2018-12-01 14:24:52,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:52,053 INFO L705 BuchiCegarLoop]: Abstraction has 341 states and 525 transitions. [2018-12-01 14:24:52,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states and 525 transitions. [2018-12-01 14:24:52,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2018-12-01 14:24:52,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2018-12-01 14:24:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 525 transitions. [2018-12-01 14:24:52,067 INFO L728 BuchiCegarLoop]: Abstraction has 341 states and 525 transitions. [2018-12-01 14:24:52,067 INFO L608 BuchiCegarLoop]: Abstraction has 341 states and 525 transitions. [2018-12-01 14:24:52,067 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 14:24:52,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 341 states and 525 transitions. [2018-12-01 14:24:52,069 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 340 [2018-12-01 14:24:52,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:52,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:52,069 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:52,070 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:52,070 INFO L794 eck$LassoCheckResult]: Stem: 996#ULTIMATE.startENTRY 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_#t~nondet13, main_#t~nondet14, 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_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, 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;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 997#L209 [2018-12-01 14:24:52,070 INFO L796 eck$LassoCheckResult]: Loop: 997#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 1142#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 1141#L86 assume !(0 != main_~p1~0); 1007#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 1008#L90-1 assume !(0 != main_~p3~0); 1117#L94-1 assume !(0 != main_~p4~0); 1119#L98-1 assume !(0 != main_~p5~0); 1103#L102-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 1104#L106-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 1091#L110-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 1092#L114-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 1079#L118-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 1080#L122-1 assume !(0 != main_~p11~0); 1066#L126-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 1067#L130-1 assume 0 != main_~p13~0;main_~lk13~0 := 1; 1056#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 1057#L138-1 assume !(0 != main_~p1~0); 1134#L144-1 assume 0 != main_~p2~0; 1132#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 1129#L149 assume !(0 != main_~p3~0); 1124#L154-1 assume !(0 != main_~p4~0); 1122#L159-1 assume !(0 != main_~p5~0); 1116#L164-1 assume !(0 != main_~p6~0); 1115#L169-1 assume !(0 != main_~p7~0); 1102#L174-1 assume !(0 != main_~p8~0); 1096#L179-1 assume !(0 != main_~p9~0); 1089#L184-1 assume !(0 != main_~p10~0); 1084#L189-1 assume !(0 != main_~p11~0); 1078#L194-1 assume !(0 != main_~p12~0); 1077#L199-1 assume !(0 != main_~p13~0); 1144#L204-1 assume 0 != main_~p14~0; 1143#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 997#L209 [2018-12-01 14:24:52,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,070 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 4 times [2018-12-01 14:24:52,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:52,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1129317559, now seen corresponding path program 1 times [2018-12-01 14:24:52,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,078 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:24:52,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:52,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:52,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:52,098 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:52,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:52,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:52,099 INFO L87 Difference]: Start difference. First operand 341 states and 525 transitions. cyclomatic complexity: 192 Second operand 3 states. [2018-12-01 14:24:52,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:52,111 INFO L93 Difference]: Finished difference Result 673 states and 1025 transitions. [2018-12-01 14:24:52,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:52,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 673 states and 1025 transitions. [2018-12-01 14:24:52,114 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 672 [2018-12-01 14:24:52,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 673 states to 673 states and 1025 transitions. [2018-12-01 14:24:52,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 673 [2018-12-01 14:24:52,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 673 [2018-12-01 14:24:52,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 673 states and 1025 transitions. [2018-12-01 14:24:52,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:52,120 INFO L705 BuchiCegarLoop]: Abstraction has 673 states and 1025 transitions. [2018-12-01 14:24:52,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states and 1025 transitions. [2018-12-01 14:24:52,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2018-12-01 14:24:52,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2018-12-01 14:24:52,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1025 transitions. [2018-12-01 14:24:52,132 INFO L728 BuchiCegarLoop]: Abstraction has 673 states and 1025 transitions. [2018-12-01 14:24:52,132 INFO L608 BuchiCegarLoop]: Abstraction has 673 states and 1025 transitions. [2018-12-01 14:24:52,132 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-01 14:24:52,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 673 states and 1025 transitions. [2018-12-01 14:24:52,136 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 672 [2018-12-01 14:24:52,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:52,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:52,136 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:52,136 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:52,137 INFO L794 eck$LassoCheckResult]: Stem: 2014#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 2015#L209 [2018-12-01 14:24:52,137 INFO L796 eck$LassoCheckResult]: Loop: 2015#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 2092#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 2090#L86 assume !(0 != main_~p1~0); 2088#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 2086#L90-1 assume !(0 != main_~p3~0); 2082#L94-1 assume !(0 != main_~p4~0); 2078#L98-1 assume !(0 != main_~p5~0); 2074#L102-1 assume !(0 != main_~p6~0); 2072#L106-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 2070#L110-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 2068#L114-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 2066#L118-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 2064#L122-1 assume !(0 != main_~p11~0); 2062#L126-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 2060#L130-1 assume 0 != main_~p13~0;main_~lk13~0 := 1; 2058#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 2056#L138-1 assume !(0 != main_~p1~0); 2050#L144-1 assume 0 != main_~p2~0; 2051#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 2042#L149 assume !(0 != main_~p3~0); 2041#L154-1 assume !(0 != main_~p4~0); 2130#L159-1 assume !(0 != main_~p5~0); 2127#L164-1 assume !(0 != main_~p6~0); 2124#L169-1 assume !(0 != main_~p7~0); 2120#L174-1 assume !(0 != main_~p8~0); 2116#L179-1 assume !(0 != main_~p9~0); 2111#L184-1 assume !(0 != main_~p10~0); 2108#L189-1 assume !(0 != main_~p11~0); 2104#L194-1 assume !(0 != main_~p12~0); 2099#L199-1 assume !(0 != main_~p13~0); 2097#L204-1 assume 0 != main_~p14~0; 2095#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 2015#L209 [2018-12-01 14:24:52,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,137 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 5 times [2018-12-01 14:24:52,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:52,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1269866169, now seen corresponding path program 1 times [2018-12-01 14:24:52,145 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,146 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:24:52,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:52,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:52,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:52,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:52,168 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:52,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:52,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:52,168 INFO L87 Difference]: Start difference. First operand 673 states and 1025 transitions. cyclomatic complexity: 368 Second operand 3 states. [2018-12-01 14:24:52,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:52,187 INFO L93 Difference]: Finished difference Result 1329 states and 2001 transitions. [2018-12-01 14:24:52,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:52,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1329 states and 2001 transitions. [2018-12-01 14:24:52,193 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1328 [2018-12-01 14:24:52,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1329 states to 1329 states and 2001 transitions. [2018-12-01 14:24:52,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1329 [2018-12-01 14:24:52,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1329 [2018-12-01 14:24:52,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1329 states and 2001 transitions. [2018-12-01 14:24:52,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:52,198 INFO L705 BuchiCegarLoop]: Abstraction has 1329 states and 2001 transitions. [2018-12-01 14:24:52,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states and 2001 transitions. [2018-12-01 14:24:52,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1329. [2018-12-01 14:24:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1329 states. [2018-12-01 14:24:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 2001 transitions. [2018-12-01 14:24:52,210 INFO L728 BuchiCegarLoop]: Abstraction has 1329 states and 2001 transitions. [2018-12-01 14:24:52,211 INFO L608 BuchiCegarLoop]: Abstraction has 1329 states and 2001 transitions. [2018-12-01 14:24:52,211 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-01 14:24:52,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1329 states and 2001 transitions. [2018-12-01 14:24:52,214 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1328 [2018-12-01 14:24:52,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:52,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:52,214 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:52,214 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:52,214 INFO L794 eck$LassoCheckResult]: Stem: 4027#ULTIMATE.startENTRY 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_#t~nondet13, main_#t~nondet14, 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_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, 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;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 4028#L209 [2018-12-01 14:24:52,215 INFO L796 eck$LassoCheckResult]: Loop: 4028#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 4527#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 4526#L86 assume !(0 != main_~p1~0); 4524#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 4351#L90-1 assume !(0 != main_~p3~0); 4352#L94-1 assume !(0 != main_~p4~0); 4513#L98-1 assume !(0 != main_~p5~0); 4544#L102-1 assume !(0 != main_~p6~0); 4545#L106-1 assume !(0 != main_~p7~0); 4629#L110-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 4630#L114-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 4623#L118-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 4624#L122-1 assume !(0 != main_~p11~0); 4617#L126-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 4618#L130-1 assume 0 != main_~p13~0;main_~lk13~0 := 1; 4610#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 4611#L138-1 assume !(0 != main_~p1~0); 4712#L144-1 assume 0 != main_~p2~0; 4131#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 4132#L149 assume !(0 != main_~p3~0); 4362#L154-1 assume !(0 != main_~p4~0); 4363#L159-1 assume !(0 != main_~p5~0); 4425#L164-1 assume !(0 != main_~p6~0); 4547#L169-1 assume !(0 != main_~p7~0); 4543#L174-1 assume !(0 != main_~p8~0); 4541#L179-1 assume !(0 != main_~p9~0); 4537#L184-1 assume !(0 != main_~p10~0); 4535#L189-1 assume !(0 != main_~p11~0); 4533#L194-1 assume !(0 != main_~p12~0); 4530#L199-1 assume !(0 != main_~p13~0); 4529#L204-1 assume 0 != main_~p14~0; 4528#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 4028#L209 [2018-12-01 14:24:52,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,215 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 6 times [2018-12-01 14:24:52,215 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:52,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1135852663, now seen corresponding path program 1 times [2018-12-01 14:24:52,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,221 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:24:52,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:52,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:52,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:52,241 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:52,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:52,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:52,241 INFO L87 Difference]: Start difference. First operand 1329 states and 2001 transitions. cyclomatic complexity: 704 Second operand 3 states. [2018-12-01 14:24:52,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:52,253 INFO L93 Difference]: Finished difference Result 2625 states and 3905 transitions. [2018-12-01 14:24:52,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:52,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2625 states and 3905 transitions. [2018-12-01 14:24:52,266 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2624 [2018-12-01 14:24:52,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2625 states to 2625 states and 3905 transitions. [2018-12-01 14:24:52,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2625 [2018-12-01 14:24:52,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2625 [2018-12-01 14:24:52,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2625 states and 3905 transitions. [2018-12-01 14:24:52,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:52,277 INFO L705 BuchiCegarLoop]: Abstraction has 2625 states and 3905 transitions. [2018-12-01 14:24:52,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states and 3905 transitions. [2018-12-01 14:24:52,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2625. [2018-12-01 14:24:52,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2625 states. [2018-12-01 14:24:52,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 3905 transitions. [2018-12-01 14:24:52,307 INFO L728 BuchiCegarLoop]: Abstraction has 2625 states and 3905 transitions. [2018-12-01 14:24:52,307 INFO L608 BuchiCegarLoop]: Abstraction has 2625 states and 3905 transitions. [2018-12-01 14:24:52,308 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-01 14:24:52,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2625 states and 3905 transitions. [2018-12-01 14:24:52,315 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2624 [2018-12-01 14:24:52,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:52,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:52,315 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:52,315 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:52,316 INFO L794 eck$LassoCheckResult]: Stem: 7991#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 7992#L209 [2018-12-01 14:24:52,316 INFO L796 eck$LassoCheckResult]: Loop: 7992#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 8209#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 8205#L86 assume !(0 != main_~p1~0); 8202#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 8198#L90-1 assume !(0 != main_~p3~0); 8161#L94-1 assume !(0 != main_~p4~0); 8157#L98-1 assume !(0 != main_~p5~0); 8101#L102-1 assume !(0 != main_~p6~0); 8059#L106-1 assume !(0 != main_~p7~0); 8060#L110-1 assume !(0 != main_~p8~0); 8304#L114-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 8302#L118-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 8299#L122-1 assume !(0 != main_~p11~0); 8296#L126-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 8293#L130-1 assume 0 != main_~p13~0;main_~lk13~0 := 1; 8290#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 8286#L138-1 assume !(0 != main_~p1~0); 8283#L144-1 assume 0 != main_~p2~0; 8279#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 8277#L149 assume !(0 != main_~p3~0); 8273#L154-1 assume !(0 != main_~p4~0); 8270#L159-1 assume !(0 != main_~p5~0); 8266#L164-1 assume !(0 != main_~p6~0); 8263#L169-1 assume !(0 != main_~p7~0); 8260#L174-1 assume !(0 != main_~p8~0); 8257#L179-1 assume !(0 != main_~p9~0); 8251#L184-1 assume !(0 != main_~p10~0); 8250#L189-1 assume !(0 != main_~p11~0); 8246#L194-1 assume !(0 != main_~p12~0); 8225#L199-1 assume !(0 != main_~p13~0); 8221#L204-1 assume 0 != main_~p14~0; 8218#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 7992#L209 [2018-12-01 14:24:52,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,316 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 7 times [2018-12-01 14:24:52,316 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:52,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,322 INFO L82 PathProgramCache]: Analyzing trace with hash -669585671, now seen corresponding path program 1 times [2018-12-01 14:24:52,322 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:52,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:52,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:52,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:52,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:52,334 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:52,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:52,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:52,335 INFO L87 Difference]: Start difference. First operand 2625 states and 3905 transitions. cyclomatic complexity: 1344 Second operand 3 states. [2018-12-01 14:24:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:52,353 INFO L93 Difference]: Finished difference Result 5185 states and 7617 transitions. [2018-12-01 14:24:52,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:52,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5185 states and 7617 transitions. [2018-12-01 14:24:52,370 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 5184 [2018-12-01 14:24:52,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5185 states to 5185 states and 7617 transitions. [2018-12-01 14:24:52,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5185 [2018-12-01 14:24:52,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5185 [2018-12-01 14:24:52,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5185 states and 7617 transitions. [2018-12-01 14:24:52,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:52,390 INFO L705 BuchiCegarLoop]: Abstraction has 5185 states and 7617 transitions. [2018-12-01 14:24:52,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5185 states and 7617 transitions. [2018-12-01 14:24:52,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5185 to 5185. [2018-12-01 14:24:52,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5185 states. [2018-12-01 14:24:52,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 7617 transitions. [2018-12-01 14:24:52,450 INFO L728 BuchiCegarLoop]: Abstraction has 5185 states and 7617 transitions. [2018-12-01 14:24:52,450 INFO L608 BuchiCegarLoop]: Abstraction has 5185 states and 7617 transitions. [2018-12-01 14:24:52,450 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-12-01 14:24:52,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5185 states and 7617 transitions. [2018-12-01 14:24:52,463 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 5184 [2018-12-01 14:24:52,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:52,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:52,463 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:52,463 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:52,464 INFO L794 eck$LassoCheckResult]: Stem: 15798#ULTIMATE.startENTRY 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_#t~nondet13, main_#t~nondet14, 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_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, 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;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 15799#L209 [2018-12-01 14:24:52,464 INFO L796 eck$LassoCheckResult]: Loop: 15799#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 15885#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 15883#L86 assume !(0 != main_~p1~0); 15882#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 15881#L90-1 assume !(0 != main_~p3~0); 15879#L94-1 assume !(0 != main_~p4~0); 15877#L98-1 assume !(0 != main_~p5~0); 15875#L102-1 assume !(0 != main_~p6~0); 15869#L106-1 assume !(0 != main_~p7~0); 15870#L110-1 assume !(0 != main_~p8~0); 15954#L114-1 assume !(0 != main_~p9~0); 15951#L118-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 15948#L122-1 assume !(0 != main_~p11~0); 15945#L126-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 15942#L130-1 assume 0 != main_~p13~0;main_~lk13~0 := 1; 15940#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 15938#L138-1 assume !(0 != main_~p1~0); 15935#L144-1 assume 0 != main_~p2~0; 15932#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 15929#L149 assume !(0 != main_~p3~0); 15924#L154-1 assume !(0 != main_~p4~0); 15920#L159-1 assume !(0 != main_~p5~0); 15916#L164-1 assume !(0 != main_~p6~0); 15913#L169-1 assume !(0 != main_~p7~0); 15910#L174-1 assume !(0 != main_~p8~0); 15907#L179-1 assume !(0 != main_~p9~0); 15904#L184-1 assume !(0 != main_~p10~0); 15901#L189-1 assume !(0 != main_~p11~0); 15898#L194-1 assume !(0 != main_~p12~0); 15894#L199-1 assume !(0 != main_~p13~0); 15891#L204-1 assume 0 != main_~p14~0; 15888#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 15799#L209 [2018-12-01 14:24:52,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,464 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 8 times [2018-12-01 14:24:52,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:52,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,469 INFO L82 PathProgramCache]: Analyzing trace with hash -450730953, now seen corresponding path program 1 times [2018-12-01 14:24:52,469 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,470 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:24:52,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:52,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:52,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:52,485 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:52,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:52,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:52,485 INFO L87 Difference]: Start difference. First operand 5185 states and 7617 transitions. cyclomatic complexity: 2560 Second operand 3 states. [2018-12-01 14:24:52,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:52,518 INFO L93 Difference]: Finished difference Result 10241 states and 14849 transitions. [2018-12-01 14:24:52,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:52,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10241 states and 14849 transitions. [2018-12-01 14:24:52,573 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 10240 [2018-12-01 14:24:52,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10241 states to 10241 states and 14849 transitions. [2018-12-01 14:24:52,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10241 [2018-12-01 14:24:52,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10241 [2018-12-01 14:24:52,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10241 states and 14849 transitions. [2018-12-01 14:24:52,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:52,608 INFO L705 BuchiCegarLoop]: Abstraction has 10241 states and 14849 transitions. [2018-12-01 14:24:52,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10241 states and 14849 transitions. [2018-12-01 14:24:52,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10241 to 10241. [2018-12-01 14:24:52,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10241 states. [2018-12-01 14:24:52,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10241 states to 10241 states and 14849 transitions. [2018-12-01 14:24:52,699 INFO L728 BuchiCegarLoop]: Abstraction has 10241 states and 14849 transitions. [2018-12-01 14:24:52,700 INFO L608 BuchiCegarLoop]: Abstraction has 10241 states and 14849 transitions. [2018-12-01 14:24:52,700 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-12-01 14:24:52,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10241 states and 14849 transitions. [2018-12-01 14:24:52,719 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 10240 [2018-12-01 14:24:52,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:52,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:52,720 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:52,720 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:52,720 INFO L794 eck$LassoCheckResult]: Stem: 31236#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 31237#L209 [2018-12-01 14:24:52,720 INFO L796 eck$LassoCheckResult]: Loop: 31237#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 31804#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 31805#L86 assume !(0 != main_~p1~0); 31794#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 31795#L90-1 assume !(0 != main_~p3~0); 31786#L94-1 assume !(0 != main_~p4~0); 31781#L98-1 assume !(0 != main_~p5~0); 31775#L102-1 assume !(0 != main_~p6~0); 31777#L106-1 assume !(0 != main_~p7~0); 31855#L110-1 assume !(0 != main_~p8~0); 31304#L114-1 assume !(0 != main_~p9~0); 31305#L118-1 assume !(0 != main_~p10~0); 32118#L122-1 assume !(0 != main_~p11~0); 32108#L126-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 32109#L130-1 assume 0 != main_~p13~0;main_~lk13~0 := 1; 32098#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 32099#L138-1 assume !(0 != main_~p1~0); 32170#L144-1 assume 0 != main_~p2~0; 32169#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 32168#L149 assume !(0 != main_~p3~0); 32165#L154-1 assume !(0 != main_~p4~0); 31674#L159-1 assume !(0 != main_~p5~0); 31663#L164-1 assume !(0 != main_~p6~0); 31664#L169-1 assume !(0 != main_~p7~0); 32086#L174-1 assume !(0 != main_~p8~0); 32084#L179-1 assume !(0 != main_~p9~0); 32083#L184-1 assume !(0 != main_~p10~0); 31831#L189-1 assume !(0 != main_~p11~0); 31830#L194-1 assume !(0 != main_~p12~0); 31820#L199-1 assume !(0 != main_~p13~0); 31821#L204-1 assume 0 != main_~p14~0; 31812#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 31237#L209 [2018-12-01 14:24:52,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,720 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 9 times [2018-12-01 14:24:52,721 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,721 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:52,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:52,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:52,726 INFO L82 PathProgramCache]: Analyzing trace with hash -28029127, now seen corresponding path program 1 times [2018-12-01 14:24:52,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:52,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:52,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,727 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:24:52,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:52,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:52,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:52,736 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:52,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:52,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:52,737 INFO L87 Difference]: Start difference. First operand 10241 states and 14849 transitions. cyclomatic complexity: 4864 Second operand 3 states. [2018-12-01 14:24:52,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:52,786 INFO L93 Difference]: Finished difference Result 20225 states and 28929 transitions. [2018-12-01 14:24:52,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:52,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20225 states and 28929 transitions. [2018-12-01 14:24:52,841 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 20224 [2018-12-01 14:24:52,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20225 states to 20225 states and 28929 transitions. [2018-12-01 14:24:52,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20225 [2018-12-01 14:24:52,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20225 [2018-12-01 14:24:52,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20225 states and 28929 transitions. [2018-12-01 14:24:52,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:52,894 INFO L705 BuchiCegarLoop]: Abstraction has 20225 states and 28929 transitions. [2018-12-01 14:24:52,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20225 states and 28929 transitions. [2018-12-01 14:24:53,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20225 to 20225. [2018-12-01 14:24:53,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20225 states. [2018-12-01 14:24:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20225 states to 20225 states and 28929 transitions. [2018-12-01 14:24:53,082 INFO L728 BuchiCegarLoop]: Abstraction has 20225 states and 28929 transitions. [2018-12-01 14:24:53,082 INFO L608 BuchiCegarLoop]: Abstraction has 20225 states and 28929 transitions. [2018-12-01 14:24:53,082 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-12-01 14:24:53,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20225 states and 28929 transitions. [2018-12-01 14:24:53,111 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 20224 [2018-12-01 14:24:53,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:53,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:53,112 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:53,112 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:53,112 INFO L794 eck$LassoCheckResult]: Stem: 61713#ULTIMATE.startENTRY 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_#t~nondet13, main_#t~nondet14, 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_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, 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;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 61714#L209 [2018-12-01 14:24:53,112 INFO L796 eck$LassoCheckResult]: Loop: 61714#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 62136#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 62131#L86 assume !(0 != main_~p1~0); 62127#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 62124#L90-1 assume !(0 != main_~p3~0); 62119#L94-1 assume !(0 != main_~p4~0); 62113#L98-1 assume !(0 != main_~p5~0); 62107#L102-1 assume !(0 != main_~p6~0); 62095#L106-1 assume !(0 != main_~p7~0); 62097#L110-1 assume !(0 != main_~p8~0); 62100#L114-1 assume !(0 != main_~p9~0); 62217#L118-1 assume !(0 != main_~p10~0); 62215#L122-1 assume !(0 != main_~p11~0); 62212#L126-1 assume !(0 != main_~p12~0); 62213#L130-1 assume 0 != main_~p13~0;main_~lk13~0 := 1; 62230#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 62228#L138-1 assume !(0 != main_~p1~0); 62227#L144-1 assume 0 != main_~p2~0; 62226#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 62225#L149 assume !(0 != main_~p3~0); 62222#L154-1 assume !(0 != main_~p4~0); 62220#L159-1 assume !(0 != main_~p5~0); 62015#L164-1 assume !(0 != main_~p6~0); 62016#L169-1 assume !(0 != main_~p7~0); 62007#L174-1 assume !(0 != main_~p8~0); 62004#L179-1 assume !(0 != main_~p9~0); 61999#L184-1 assume !(0 != main_~p10~0); 61951#L189-1 assume !(0 != main_~p11~0); 61950#L194-1 assume !(0 != main_~p12~0); 62148#L199-1 assume !(0 != main_~p13~0); 62144#L204-1 assume 0 != main_~p14~0; 62141#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 61714#L209 [2018-12-01 14:24:53,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:53,113 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 10 times [2018-12-01 14:24:53,113 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:53,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:53,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:53,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:53,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:53,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1716972869, now seen corresponding path program 1 times [2018-12-01 14:24:53,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:53,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:53,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,118 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:24:53,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:24:53,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:24:53,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:24:53,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 14:24:53,131 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 14:24:53,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:24:53,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:24:53,131 INFO L87 Difference]: Start difference. First operand 20225 states and 28929 transitions. cyclomatic complexity: 9216 Second operand 3 states. [2018-12-01 14:24:53,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:24:53,197 INFO L93 Difference]: Finished difference Result 39937 states and 56321 transitions. [2018-12-01 14:24:53,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:24:53,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39937 states and 56321 transitions. [2018-12-01 14:24:53,289 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 39936 [2018-12-01 14:24:53,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39937 states to 39937 states and 56321 transitions. [2018-12-01 14:24:53,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39937 [2018-12-01 14:24:53,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39937 [2018-12-01 14:24:53,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39937 states and 56321 transitions. [2018-12-01 14:24:53,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:24:53,382 INFO L705 BuchiCegarLoop]: Abstraction has 39937 states and 56321 transitions. [2018-12-01 14:24:53,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39937 states and 56321 transitions. [2018-12-01 14:24:53,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39937 to 39937. [2018-12-01 14:24:53,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39937 states. [2018-12-01 14:24:53,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39937 states to 39937 states and 56321 transitions. [2018-12-01 14:24:53,709 INFO L728 BuchiCegarLoop]: Abstraction has 39937 states and 56321 transitions. [2018-12-01 14:24:53,709 INFO L608 BuchiCegarLoop]: Abstraction has 39937 states and 56321 transitions. [2018-12-01 14:24:53,709 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-12-01 14:24:53,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39937 states and 56321 transitions. [2018-12-01 14:24:53,772 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 39936 [2018-12-01 14:24:53,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:24:53,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:24:53,772 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 14:24:53,772 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, 1, 1, 1, 1, 1] [2018-12-01 14:24:53,772 INFO L794 eck$LassoCheckResult]: Stem: 121873#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~p13~0, main_~lk13~0, main_~p14~0, main_~lk14~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;main_~p13~0 := main_#t~nondet12;havoc main_#t~nondet12;havoc main_~lk13~0;main_~p14~0 := main_#t~nondet13;havoc main_#t~nondet13;havoc main_~lk14~0;havoc main_~cond~0; 121874#L209 [2018-12-01 14:24:53,773 INFO L796 eck$LassoCheckResult]: Loop: 121874#L209 assume !false;main_~cond~0 := main_#t~nondet14;havoc main_#t~nondet14; 122323#L53 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;main_~lk13~0 := 0;main_~lk14~0 := 0; 122324#L86 assume !(0 != main_~p1~0); 122309#L86-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 122310#L90-1 assume !(0 != main_~p3~0); 122295#L94-1 assume !(0 != main_~p4~0); 122297#L98-1 assume !(0 != main_~p5~0); 122530#L102-1 assume !(0 != main_~p6~0); 122527#L106-1 assume !(0 != main_~p7~0); 122525#L110-1 assume !(0 != main_~p8~0); 122523#L114-1 assume !(0 != main_~p9~0); 122466#L118-1 assume !(0 != main_~p10~0); 122464#L122-1 assume !(0 != main_~p11~0); 122460#L126-1 assume !(0 != main_~p12~0); 122457#L130-1 assume !(0 != main_~p13~0); 122456#L134-1 assume 0 != main_~p14~0;main_~lk14~0 := 1; 122454#L138-1 assume !(0 != main_~p1~0); 122453#L144-1 assume 0 != main_~p2~0; 122452#L150 assume !(1 != main_~lk2~0);main_~lk2~0 := 0; 122192#L149 assume !(0 != main_~p3~0); 122187#L154-1 assume !(0 != main_~p4~0); 122188#L159-1 assume !(0 != main_~p5~0); 122178#L164-1 assume !(0 != main_~p6~0); 122179#L169-1 assume !(0 != main_~p7~0); 122436#L174-1 assume !(0 != main_~p8~0); 122428#L179-1 assume !(0 != main_~p9~0); 122378#L184-1 assume !(0 != main_~p10~0); 122368#L189-1 assume !(0 != main_~p11~0); 122367#L194-1 assume !(0 != main_~p12~0); 122349#L199-1 assume !(0 != main_~p13~0); 122350#L204-1 assume 0 != main_~p14~0; 122335#L210 assume !(1 != main_~lk14~0);main_~lk14~0 := 0; 121874#L209 [2018-12-01 14:24:53,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:53,773 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 11 times [2018-12-01 14:24:53,773 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:53,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:53,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:53,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:53,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:53,777 INFO L82 PathProgramCache]: Analyzing trace with hash 583849721, now seen corresponding path program 1 times [2018-12-01 14:24:53,777 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:53,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:53,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,778 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:24:53,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:53,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:24:53,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1609341720, now seen corresponding path program 1 times [2018-12-01 14:24:53,790 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:24:53,790 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:24:53,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:24:53,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:24:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:24:53,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 02:24:53 BoogieIcfgContainer [2018-12-01 14:24:53,982 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 14:24:53,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 14:24:53,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 14:24:53,982 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 14:24:53,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:24:51" (3/4) ... [2018-12-01 14:24:53,985 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-01 14:24:54,018 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_02ed1b07-c296-4269-a94a-13c402126754/bin-2019/uautomizer/witness.graphml [2018-12-01 14:24:54,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 14:24:54,019 INFO L168 Benchmark]: Toolchain (without parser) took 2800.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 953.3 MB in the beginning and 834.6 MB in the end (delta: 118.7 MB). Peak memory consumption was 301.2 MB. Max. memory is 11.5 GB. [2018-12-01 14:24:54,020 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:24:54,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.83 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-12-01 14:24:54,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-12-01 14:24:54,021 INFO L168 Benchmark]: Boogie Preprocessor took 13.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 14:24:54,021 INFO L168 Benchmark]: RCFGBuilder took 196.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-12-01 14:24:54,021 INFO L168 Benchmark]: BuchiAutomizer took 2347.58 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 840.3 MB in the end (delta: 247.1 MB). Peak memory consumption was 317.4 MB. Max. memory is 11.5 GB. [2018-12-01 14:24:54,021 INFO L168 Benchmark]: Witness Printer took 36.68 ms. Allocated memory is still 1.2 GB. Free memory was 840.3 MB in the beginning and 834.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 11.5 GB. [2018-12-01 14:24:54,023 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.83 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 196.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2347.58 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 840.3 MB in the end (delta: 247.1 MB). Peak memory consumption was 317.4 MB. Max. memory is 11.5 GB. * Witness Printer took 36.68 ms. Allocated memory is still 1.2 GB. Free memory was 840.3 MB in the beginning and 834.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 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 10 terminating modules (10 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.10 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 39937 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 11 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 10. Minimization of nondet autom 0. Automata minimization 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had 39937 states and ocurred in iteration 10. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1073 SDtfs, 551 SDslu, 669 SDs, 0 SdLazy, 50 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI10 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: 51]: 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=3, p5=0, p10=0, p4=0, p7=0, p6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f3edec6=0, p9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34f1b903=0, p8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26f44a8b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32fcc1b0=0, lk12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@776398ea=0, lk13=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76c5e05e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@100042f4=0, lk14=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fa4d8ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b9b6f44=0, p13=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51f29510=0, p14=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4905c022=0, p11=0, lk10=0, p12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5938571f=0, lk11=0, cond=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66244bf8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6200e5a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b1e3eab=1, lk3=0, lk4=0, lk5=0, lk6=0, lk1=0, lk2=0, lk7=0, lk8=0, lk9=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 51]: 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; [L42] int p13 = __VERIFIER_nondet_int(); [L43] int lk13; [L45] int p14 = __VERIFIER_nondet_int(); [L46] int lk14; [L49] int cond; Loop: [L51] COND TRUE 1 [L52] cond = __VERIFIER_nondet_int() [L53] COND FALSE !(cond == 0) [L56] lk1 = 0 [L58] lk2 = 0 [L60] lk3 = 0 [L62] lk4 = 0 [L64] lk5 = 0 [L66] lk6 = 0 [L68] lk7 = 0 [L70] lk8 = 0 [L72] lk9 = 0 [L74] lk10 = 0 [L76] lk11 = 0 [L78] lk12 = 0 [L80] lk13 = 0 [L82] lk14 = 0 [L86] COND FALSE !(p1 != 0) [L90] COND TRUE p2 != 0 [L91] lk2 = 1 [L94] COND FALSE !(p3 != 0) [L98] COND FALSE !(p4 != 0) [L102] COND FALSE !(p5 != 0) [L106] COND FALSE !(p6 != 0) [L110] COND FALSE !(p7 != 0) [L114] COND FALSE !(p8 != 0) [L118] COND FALSE !(p9 != 0) [L122] COND FALSE !(p10 != 0) [L126] COND FALSE !(p11 != 0) [L130] COND FALSE !(p12 != 0) [L134] COND FALSE !(p13 != 0) [L138] COND TRUE p14 != 0 [L139] lk14 = 1 [L144] COND FALSE !(p1 != 0) [L149] COND TRUE p2 != 0 [L150] COND FALSE !(lk2 != 1) [L151] lk2 = 0 [L154] COND FALSE !(p3 != 0) [L159] COND FALSE !(p4 != 0) [L164] COND FALSE !(p5 != 0) [L169] COND FALSE !(p6 != 0) [L174] COND FALSE !(p7 != 0) [L179] COND FALSE !(p8 != 0) [L184] COND FALSE !(p9 != 0) [L189] COND FALSE !(p10 != 0) [L194] COND FALSE !(p11 != 0) [L199] COND FALSE !(p12 != 0) [L204] COND FALSE !(p13 != 0) [L209] COND TRUE p14 != 0 [L210] COND FALSE !(lk14 != 1) [L211] lk14 = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...