./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/locks/test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/locks/test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16b9ec98922e529d9b7488fe4b8a5dfd7426fa85 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:27:01,781 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:27:01,783 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:27:01,800 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:27:01,801 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:27:01,802 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:27:01,805 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:27:01,808 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:27:01,811 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:27:01,816 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:27:01,817 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:27:01,820 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:27:01,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:27:01,824 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:27:01,827 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:27:01,830 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:27:01,831 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:27:01,835 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:27:01,838 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:27:01,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:27:01,842 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:27:01,847 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:27:01,851 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:27:01,852 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:27:01,852 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:27:01,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:27:01,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:27:01,854 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:27:01,857 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:27:01,858 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:27:01,858 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:27:01,859 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:27:01,859 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:27:01,859 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:27:01,861 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:27:01,861 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:27:01,862 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:27:01,884 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:27:01,886 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:27:01,887 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:27:01,887 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:27:01,887 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:27:01,887 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:27:01,888 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:27:01,888 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:27:01,888 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:27:01,888 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:27:01,888 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:27:01,888 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:27:01,889 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:27:01,889 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:27:01,889 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:27:01,889 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:27:01,889 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:27:01,890 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:27:01,890 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:27:01,890 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:27:01,890 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:27:01,890 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:27:01,890 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:27:01,890 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:27:01,891 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:27:01,891 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:27:01,891 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:27:01,891 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:27:01,891 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:27:01,892 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:27:01,892 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:27:01,893 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:27:01,893 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b9ec98922e529d9b7488fe4b8a5dfd7426fa85 [2018-11-28 23:27:01,937 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:27:01,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:27:01,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:27:01,956 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:27:01,957 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:27:01,958 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/locks/test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-28 23:27:02,018 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17b3fc25c/84cfd3948dca4a7dac4353fb67c5be04/FLAG01b92ef4a [2018-11-28 23:27:02,476 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:27:02,477 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/locks/test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-28 23:27:02,484 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17b3fc25c/84cfd3948dca4a7dac4353fb67c5be04/FLAG01b92ef4a [2018-11-28 23:27:02,831 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17b3fc25c/84cfd3948dca4a7dac4353fb67c5be04 [2018-11-28 23:27:02,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:27:02,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:27:02,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:27:02,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:27:02,843 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:27:02,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:27:02" (1/1) ... [2018-11-28 23:27:02,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a47e369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:02, skipping insertion in model container [2018-11-28 23:27:02,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:27:02" (1/1) ... [2018-11-28 23:27:02,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:27:02,885 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:27:03,145 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:27:03,152 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:27:03,196 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:27:03,219 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:27:03,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03 WrapperNode [2018-11-28 23:27:03,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:27:03,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:27:03,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:27:03,221 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:27:03,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... [2018-11-28 23:27:03,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... [2018-11-28 23:27:03,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:27:03,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:27:03,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:27:03,275 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:27:03,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... [2018-11-28 23:27:03,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... [2018-11-28 23:27:03,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... [2018-11-28 23:27:03,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... [2018-11-28 23:27:03,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... [2018-11-28 23:27:03,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... [2018-11-28 23:27:03,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... [2018-11-28 23:27:03,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:27:03,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:27:03,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:27:03,326 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:27:03,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:27:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:27:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:27:04,085 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:27:04,085 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:27:04,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:27:04 BoogieIcfgContainer [2018-11-28 23:27:04,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:27:04,087 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:27:04,087 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:27:04,091 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:27:04,092 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:27:04,092 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:27:02" (1/3) ... [2018-11-28 23:27:04,093 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d81b32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:27:04, skipping insertion in model container [2018-11-28 23:27:04,093 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:27:04,094 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:03" (2/3) ... [2018-11-28 23:27:04,094 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d81b32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:27:04, skipping insertion in model container [2018-11-28 23:27:04,094 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:27:04,094 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:27:04" (3/3) ... [2018-11-28 23:27:04,096 INFO L375 chiAutomizerObserver]: Analyzing ICFG test_locks_12_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-28 23:27:04,157 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:27:04,158 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:27:04,158 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:27:04,158 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:27:04,159 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:27:04,159 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:27:04,159 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:27:04,159 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:27:04,159 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:27:04,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states. [2018-11-28 23:27:04,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2018-11-28 23:27:04,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:04,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:04,218 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:04,218 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] [2018-11-28 23:27:04,218 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:27:04,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states. [2018-11-28 23:27:04,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2018-11-28 23:27:04,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:04,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:04,224 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:04,225 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] [2018-11-28 23:27:04,233 INFO L794 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 14#L181-1true [2018-11-28 23:27:04,234 INFO L796 eck$LassoCheckResult]: Loop: 14#L181-1true assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 3#L47true assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 22#L76true assume 0 != main_~p1~0;main_~lk1~0 := 1; 17#L76-2true assume 0 != main_~p2~0;main_~lk2~0 := 1; 4#L80-1true assume !(0 != main_~p3~0); 11#L84-1true assume 0 != main_~p4~0;main_~lk4~0 := 1; 44#L88-1true assume 0 != main_~p5~0;main_~lk5~0 := 1; 33#L92-1true assume 0 != main_~p6~0;main_~lk6~0 := 1; 15#L96-1true assume 0 != main_~p7~0;main_~lk7~0 := 1; 28#L100-1true assume 0 != main_~p8~0;main_~lk8~0 := 1; 8#L104-1true assume 0 != main_~p9~0;main_~lk9~0 := 1; 41#L108-1true assume 0 != main_~p10~0;main_~lk10~0 := 1; 30#L112-1true assume !(0 != main_~p11~0); 37#L116-1true assume 0 != main_~p12~0;main_~lk12~0 := 1; 24#L120-1true assume !(0 != main_~p1~0); 9#L126-1true assume !(0 != main_~p2~0); 25#L131-1true assume !(0 != main_~p3~0); 35#L136-1true assume !(0 != main_~p4~0); 42#L141-1true assume !(0 != main_~p5~0); 6#L146-1true assume !(0 != main_~p6~0); 20#L151-1true assume !(0 != main_~p7~0); 34#L156-1true assume !(0 != main_~p8~0); 40#L161-1true assume !(0 != main_~p9~0); 5#L166-1true assume !(0 != main_~p10~0); 18#L171-1true assume !(0 != main_~p11~0); 31#L176-1true assume !(0 != main_~p12~0); 14#L181-1true [2018-11-28 23:27:04,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:04,242 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:27:04,243 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:04,244 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:04,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:04,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:04,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:04,346 INFO L82 PathProgramCache]: Analyzing trace with hash -708087768, now seen corresponding path program 1 times [2018-11-28 23:27:04,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:04,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:04,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:04,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:04,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:04,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:27:04,480 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:04,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:04,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:04,505 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2018-11-28 23:27:04,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:04,587 INFO L93 Difference]: Finished difference Result 86 states and 153 transitions. [2018-11-28 23:27:04,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:04,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 153 transitions. [2018-11-28 23:27:04,595 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2018-11-28 23:27:04,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 76 states and 122 transitions. [2018-11-28 23:27:04,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2018-11-28 23:27:04,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2018-11-28 23:27:04,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 122 transitions. [2018-11-28 23:27:04,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:04,606 INFO L705 BuchiCegarLoop]: Abstraction has 76 states and 122 transitions. [2018-11-28 23:27:04,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 122 transitions. [2018-11-28 23:27:04,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-11-28 23:27:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-28 23:27:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 122 transitions. [2018-11-28 23:27:04,645 INFO L728 BuchiCegarLoop]: Abstraction has 76 states and 122 transitions. [2018-11-28 23:27:04,645 INFO L608 BuchiCegarLoop]: Abstraction has 76 states and 122 transitions. [2018-11-28 23:27:04,645 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:27:04,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 122 transitions. [2018-11-28 23:27:04,648 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2018-11-28 23:27:04,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:04,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:04,649 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:04,649 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] [2018-11-28 23:27:04,649 INFO L794 eck$LassoCheckResult]: Stem: 182#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_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 161#L181-1 [2018-11-28 23:27:04,649 INFO L796 eck$LassoCheckResult]: Loop: 161#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 139#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 140#L76 assume !(0 != main_~p1~0); 184#L76-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 214#L80-1 assume !(0 != main_~p3~0); 213#L84-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 212#L88-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 211#L92-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 210#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 209#L100-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 208#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 207#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 206#L112-1 assume !(0 != main_~p11~0); 205#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 204#L120-1 assume !(0 != main_~p1~0); 153#L126-1 assume !(0 != main_~p2~0); 155#L131-1 assume !(0 != main_~p3~0); 201#L136-1 assume !(0 != main_~p4~0); 199#L141-1 assume !(0 != main_~p5~0); 197#L146-1 assume !(0 != main_~p6~0); 168#L151-1 assume !(0 != main_~p7~0); 157#L156-1 assume !(0 != main_~p8~0); 183#L161-1 assume !(0 != main_~p9~0); 143#L166-1 assume !(0 != main_~p10~0); 144#L171-1 assume !(0 != main_~p11~0); 147#L176-1 assume !(0 != main_~p12~0); 161#L181-1 [2018-11-28 23:27:04,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:04,650 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-28 23:27:04,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:04,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:04,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:04,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:04,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:04,663 INFO L82 PathProgramCache]: Analyzing trace with hash -842101274, now seen corresponding path program 1 times [2018-11-28 23:27:04,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:04,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:04,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,664 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:27:04,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:04,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:04,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:27:04,713 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:04,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:04,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:04,714 INFO L87 Difference]: Start difference. First operand 76 states and 122 transitions. cyclomatic complexity: 48 Second operand 3 states. [2018-11-28 23:27:04,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:04,792 INFO L93 Difference]: Finished difference Result 149 states and 237 transitions. [2018-11-28 23:27:04,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:04,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 237 transitions. [2018-11-28 23:27:04,798 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 148 [2018-11-28 23:27:04,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 237 transitions. [2018-11-28 23:27:04,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2018-11-28 23:27:04,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2018-11-28 23:27:04,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 237 transitions. [2018-11-28 23:27:04,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:04,803 INFO L705 BuchiCegarLoop]: Abstraction has 149 states and 237 transitions. [2018-11-28 23:27:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 237 transitions. [2018-11-28 23:27:04,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-11-28 23:27:04,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-28 23:27:04,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 237 transitions. [2018-11-28 23:27:04,818 INFO L728 BuchiCegarLoop]: Abstraction has 149 states and 237 transitions. [2018-11-28 23:27:04,818 INFO L608 BuchiCegarLoop]: Abstraction has 149 states and 237 transitions. [2018-11-28 23:27:04,818 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:27:04,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 237 transitions. [2018-11-28 23:27:04,821 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 148 [2018-11-28 23:27:04,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:04,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:04,822 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:04,823 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] [2018-11-28 23:27:04,823 INFO L794 eck$LassoCheckResult]: Stem: 412#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 413#L181-1 [2018-11-28 23:27:04,823 INFO L796 eck$LassoCheckResult]: Loop: 413#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 435#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 433#L76 assume !(0 != main_~p1~0); 431#L76-2 assume !(0 != main_~p2~0); 430#L80-1 assume !(0 != main_~p3~0); 429#L84-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 428#L88-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 427#L92-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 426#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 425#L100-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 424#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 423#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 422#L112-1 assume !(0 != main_~p11~0); 420#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 418#L120-1 assume !(0 != main_~p1~0); 419#L126-1 assume !(0 != main_~p2~0); 455#L131-1 assume !(0 != main_~p3~0); 453#L136-1 assume !(0 != main_~p4~0); 451#L141-1 assume !(0 != main_~p5~0); 449#L146-1 assume !(0 != main_~p6~0); 447#L151-1 assume !(0 != main_~p7~0); 445#L156-1 assume !(0 != main_~p8~0); 443#L161-1 assume !(0 != main_~p9~0); 441#L166-1 assume !(0 != main_~p10~0); 439#L171-1 assume !(0 != main_~p11~0); 437#L176-1 assume !(0 != main_~p12~0); 413#L181-1 [2018-11-28 23:27:04,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:04,823 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 3 times [2018-11-28 23:27:04,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:04,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:04,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:04,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:04,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:04,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1647427688, now seen corresponding path program 1 times [2018-11-28 23:27:04,839 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:04,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:04,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,844 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:27:04,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:04,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:04,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:04,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:27:04,925 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:04,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:04,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:04,926 INFO L87 Difference]: Start difference. First operand 149 states and 237 transitions. cyclomatic complexity: 92 Second operand 3 states. [2018-11-28 23:27:05,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:05,011 INFO L93 Difference]: Finished difference Result 293 states and 461 transitions. [2018-11-28 23:27:05,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:05,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 293 states and 461 transitions. [2018-11-28 23:27:05,017 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 292 [2018-11-28 23:27:05,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 293 states to 293 states and 461 transitions. [2018-11-28 23:27:05,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 293 [2018-11-28 23:27:05,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 293 [2018-11-28 23:27:05,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 293 states and 461 transitions. [2018-11-28 23:27:05,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:05,025 INFO L705 BuchiCegarLoop]: Abstraction has 293 states and 461 transitions. [2018-11-28 23:27:05,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states and 461 transitions. [2018-11-28 23:27:05,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2018-11-28 23:27:05,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2018-11-28 23:27:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 461 transitions. [2018-11-28 23:27:05,049 INFO L728 BuchiCegarLoop]: Abstraction has 293 states and 461 transitions. [2018-11-28 23:27:05,049 INFO L608 BuchiCegarLoop]: Abstraction has 293 states and 461 transitions. [2018-11-28 23:27:05,049 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:27:05,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 293 states and 461 transitions. [2018-11-28 23:27:05,052 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 292 [2018-11-28 23:27:05,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:05,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:05,053 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:05,053 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] [2018-11-28 23:27:05,053 INFO L794 eck$LassoCheckResult]: Stem: 863#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_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 864#L181-1 [2018-11-28 23:27:05,053 INFO L796 eck$LassoCheckResult]: Loop: 864#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 906#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 903#L76 assume !(0 != main_~p1~0); 900#L76-2 assume !(0 != main_~p2~0); 898#L80-1 assume !(0 != main_~p3~0); 895#L84-1 assume !(0 != main_~p4~0); 893#L88-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 891#L92-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 889#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 887#L100-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 885#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 883#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 881#L112-1 assume !(0 != main_~p11~0); 879#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 876#L120-1 assume !(0 != main_~p1~0); 877#L126-1 assume !(0 != main_~p2~0); 945#L131-1 assume !(0 != main_~p3~0); 940#L136-1 assume !(0 != main_~p4~0); 937#L141-1 assume !(0 != main_~p5~0); 933#L146-1 assume !(0 != main_~p6~0); 929#L151-1 assume !(0 != main_~p7~0); 925#L156-1 assume !(0 != main_~p8~0); 921#L161-1 assume !(0 != main_~p9~0); 917#L166-1 assume !(0 != main_~p10~0); 913#L171-1 assume !(0 != main_~p11~0); 910#L176-1 assume !(0 != main_~p12~0); 864#L181-1 [2018-11-28 23:27:05,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:05,054 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 4 times [2018-11-28 23:27:05,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:05,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:05,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:05,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:05,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:05,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2070129514, now seen corresponding path program 1 times [2018-11-28 23:27:05,064 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:05,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:05,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,065 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:27:05,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:05,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:05,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:27:05,107 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:05,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:05,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:05,108 INFO L87 Difference]: Start difference. First operand 293 states and 461 transitions. cyclomatic complexity: 176 Second operand 3 states. [2018-11-28 23:27:05,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:05,208 INFO L93 Difference]: Finished difference Result 577 states and 897 transitions. [2018-11-28 23:27:05,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:05,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 577 states and 897 transitions. [2018-11-28 23:27:05,215 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 576 [2018-11-28 23:27:05,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 577 states to 577 states and 897 transitions. [2018-11-28 23:27:05,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 577 [2018-11-28 23:27:05,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 577 [2018-11-28 23:27:05,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 577 states and 897 transitions. [2018-11-28 23:27:05,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:05,228 INFO L705 BuchiCegarLoop]: Abstraction has 577 states and 897 transitions. [2018-11-28 23:27:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states and 897 transitions. [2018-11-28 23:27:05,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2018-11-28 23:27:05,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2018-11-28 23:27:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 897 transitions. [2018-11-28 23:27:05,298 INFO L728 BuchiCegarLoop]: Abstraction has 577 states and 897 transitions. [2018-11-28 23:27:05,299 INFO L608 BuchiCegarLoop]: Abstraction has 577 states and 897 transitions. [2018-11-28 23:27:05,299 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:27:05,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 577 states and 897 transitions. [2018-11-28 23:27:05,311 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 576 [2018-11-28 23:27:05,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:05,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:05,312 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:05,312 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] [2018-11-28 23:27:05,314 INFO L794 eck$LassoCheckResult]: Stem: 1741#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 1742#L181-1 [2018-11-28 23:27:05,316 INFO L796 eck$LassoCheckResult]: Loop: 1742#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 1812#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 1809#L76 assume !(0 != main_~p1~0); 1805#L76-2 assume !(0 != main_~p2~0); 1802#L80-1 assume !(0 != main_~p3~0); 1799#L84-1 assume !(0 != main_~p4~0); 1794#L88-1 assume !(0 != main_~p5~0); 1788#L92-1 assume 0 != main_~p6~0;main_~lk6~0 := 1; 1789#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 1780#L100-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 1781#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 1772#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 1773#L112-1 assume !(0 != main_~p11~0); 1765#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 1766#L120-1 assume !(0 != main_~p1~0); 1853#L126-1 assume !(0 != main_~p2~0); 1850#L131-1 assume !(0 != main_~p3~0); 1845#L136-1 assume !(0 != main_~p4~0); 1843#L141-1 assume !(0 != main_~p5~0); 1841#L146-1 assume !(0 != main_~p6~0); 1837#L151-1 assume !(0 != main_~p7~0); 1833#L156-1 assume !(0 != main_~p8~0); 1829#L161-1 assume !(0 != main_~p9~0); 1825#L166-1 assume !(0 != main_~p10~0); 1821#L171-1 assume !(0 != main_~p11~0); 1817#L176-1 assume !(0 != main_~p12~0); 1742#L181-1 [2018-11-28 23:27:05,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:05,316 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 5 times [2018-11-28 23:27:05,316 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:05,317 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:05,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:05,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:05,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:05,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1252481064, now seen corresponding path program 1 times [2018-11-28 23:27:05,341 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:05,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:05,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,343 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:27:05,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:05,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:05,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:05,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:27:05,396 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:05,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:05,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:05,398 INFO L87 Difference]: Start difference. First operand 577 states and 897 transitions. cyclomatic complexity: 336 Second operand 3 states. [2018-11-28 23:27:05,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:05,465 INFO L93 Difference]: Finished difference Result 1137 states and 1745 transitions. [2018-11-28 23:27:05,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:05,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1137 states and 1745 transitions. [2018-11-28 23:27:05,481 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1136 [2018-11-28 23:27:05,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1137 states to 1137 states and 1745 transitions. [2018-11-28 23:27:05,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1137 [2018-11-28 23:27:05,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1137 [2018-11-28 23:27:05,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1137 states and 1745 transitions. [2018-11-28 23:27:05,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:05,501 INFO L705 BuchiCegarLoop]: Abstraction has 1137 states and 1745 transitions. [2018-11-28 23:27:05,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states and 1745 transitions. [2018-11-28 23:27:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2018-11-28 23:27:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1137 states. [2018-11-28 23:27:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1745 transitions. [2018-11-28 23:27:05,535 INFO L728 BuchiCegarLoop]: Abstraction has 1137 states and 1745 transitions. [2018-11-28 23:27:05,535 INFO L608 BuchiCegarLoop]: Abstraction has 1137 states and 1745 transitions. [2018-11-28 23:27:05,536 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 23:27:05,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1137 states and 1745 transitions. [2018-11-28 23:27:05,548 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1136 [2018-11-28 23:27:05,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:05,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:05,549 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:05,549 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] [2018-11-28 23:27:05,549 INFO L794 eck$LassoCheckResult]: Stem: 3455#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_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 3456#L181-1 [2018-11-28 23:27:05,550 INFO L796 eck$LassoCheckResult]: Loop: 3456#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 3520#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 3517#L76 assume !(0 != main_~p1~0); 3514#L76-2 assume !(0 != main_~p2~0); 3511#L80-1 assume !(0 != main_~p3~0); 3507#L84-1 assume !(0 != main_~p4~0); 3503#L88-1 assume !(0 != main_~p5~0); 3500#L92-1 assume !(0 != main_~p6~0); 3498#L96-1 assume 0 != main_~p7~0;main_~lk7~0 := 1; 3496#L100-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 3494#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 3492#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 3490#L112-1 assume !(0 != main_~p11~0); 3488#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 3485#L120-1 assume !(0 != main_~p1~0); 3486#L126-1 assume !(0 != main_~p2~0); 3559#L131-1 assume !(0 != main_~p3~0); 3554#L136-1 assume !(0 != main_~p4~0); 3550#L141-1 assume !(0 != main_~p5~0); 3546#L146-1 assume !(0 != main_~p6~0); 3543#L151-1 assume !(0 != main_~p7~0); 3539#L156-1 assume !(0 != main_~p8~0); 3535#L161-1 assume !(0 != main_~p9~0); 3531#L166-1 assume !(0 != main_~p10~0); 3527#L171-1 assume !(0 != main_~p11~0); 3524#L176-1 assume !(0 != main_~p12~0); 3456#L181-1 [2018-11-28 23:27:05,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:05,550 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 6 times [2018-11-28 23:27:05,550 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:05,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:05,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:05,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:05,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:05,566 INFO L82 PathProgramCache]: Analyzing trace with hash -436462678, now seen corresponding path program 1 times [2018-11-28 23:27:05,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:05,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:05,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,567 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:27:05,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:05,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:05,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:27:05,640 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:05,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:05,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:05,641 INFO L87 Difference]: Start difference. First operand 1137 states and 1745 transitions. cyclomatic complexity: 640 Second operand 3 states. [2018-11-28 23:27:05,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:05,741 INFO L93 Difference]: Finished difference Result 2241 states and 3393 transitions. [2018-11-28 23:27:05,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:05,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2241 states and 3393 transitions. [2018-11-28 23:27:05,773 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2240 [2018-11-28 23:27:05,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2241 states to 2241 states and 3393 transitions. [2018-11-28 23:27:05,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2241 [2018-11-28 23:27:05,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2241 [2018-11-28 23:27:05,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2241 states and 3393 transitions. [2018-11-28 23:27:05,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:05,799 INFO L705 BuchiCegarLoop]: Abstraction has 2241 states and 3393 transitions. [2018-11-28 23:27:05,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states and 3393 transitions. [2018-11-28 23:27:05,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2241. [2018-11-28 23:27:05,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2241 states. [2018-11-28 23:27:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3393 transitions. [2018-11-28 23:27:05,858 INFO L728 BuchiCegarLoop]: Abstraction has 2241 states and 3393 transitions. [2018-11-28 23:27:05,858 INFO L608 BuchiCegarLoop]: Abstraction has 2241 states and 3393 transitions. [2018-11-28 23:27:05,858 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-28 23:27:05,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2241 states and 3393 transitions. [2018-11-28 23:27:05,876 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2240 [2018-11-28 23:27:05,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:05,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:05,877 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:05,878 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] [2018-11-28 23:27:05,878 INFO L794 eck$LassoCheckResult]: Stem: 6841#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 6842#L181-1 [2018-11-28 23:27:05,879 INFO L796 eck$LassoCheckResult]: Loop: 6842#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 6923#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 6920#L76 assume !(0 != main_~p1~0); 6916#L76-2 assume !(0 != main_~p2~0); 6913#L80-1 assume !(0 != main_~p3~0); 6910#L84-1 assume !(0 != main_~p4~0); 6906#L88-1 assume !(0 != main_~p5~0); 6902#L92-1 assume !(0 != main_~p6~0); 6897#L96-1 assume !(0 != main_~p7~0); 6891#L100-1 assume 0 != main_~p8~0;main_~lk8~0 := 1; 6892#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 6883#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 6884#L112-1 assume !(0 != main_~p11~0); 6876#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 6877#L120-1 assume !(0 != main_~p1~0); 6964#L126-1 assume !(0 != main_~p2~0); 6961#L131-1 assume !(0 != main_~p3~0); 6956#L136-1 assume !(0 != main_~p4~0); 6952#L141-1 assume !(0 != main_~p5~0); 6948#L146-1 assume !(0 != main_~p6~0); 6946#L151-1 assume !(0 != main_~p7~0); 6944#L156-1 assume !(0 != main_~p8~0); 6940#L161-1 assume !(0 != main_~p9~0); 6936#L166-1 assume !(0 != main_~p10~0); 6932#L171-1 assume !(0 != main_~p11~0); 6928#L176-1 assume !(0 != main_~p12~0); 6842#L181-1 [2018-11-28 23:27:05,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:05,879 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 7 times [2018-11-28 23:27:05,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:05,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:05,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:05,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:05,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:05,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1864359912, now seen corresponding path program 1 times [2018-11-28 23:27:05,894 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:05,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:05,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:05,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:05,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:05,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:05,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:27:05,966 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:05,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:05,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:05,967 INFO L87 Difference]: Start difference. First operand 2241 states and 3393 transitions. cyclomatic complexity: 1216 Second operand 3 states. [2018-11-28 23:27:06,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:06,075 INFO L93 Difference]: Finished difference Result 4417 states and 6593 transitions. [2018-11-28 23:27:06,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:06,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4417 states and 6593 transitions. [2018-11-28 23:27:06,119 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 4416 [2018-11-28 23:27:06,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4417 states to 4417 states and 6593 transitions. [2018-11-28 23:27:06,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4417 [2018-11-28 23:27:06,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4417 [2018-11-28 23:27:06,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4417 states and 6593 transitions. [2018-11-28 23:27:06,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:06,170 INFO L705 BuchiCegarLoop]: Abstraction has 4417 states and 6593 transitions. [2018-11-28 23:27:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4417 states and 6593 transitions. [2018-11-28 23:27:06,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4417 to 4417. [2018-11-28 23:27:06,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4417 states. [2018-11-28 23:27:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6593 transitions. [2018-11-28 23:27:06,268 INFO L728 BuchiCegarLoop]: Abstraction has 4417 states and 6593 transitions. [2018-11-28 23:27:06,268 INFO L608 BuchiCegarLoop]: Abstraction has 4417 states and 6593 transitions. [2018-11-28 23:27:06,269 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-28 23:27:06,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4417 states and 6593 transitions. [2018-11-28 23:27:06,300 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 4416 [2018-11-28 23:27:06,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:06,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:06,302 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:06,303 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] [2018-11-28 23:27:06,304 INFO L794 eck$LassoCheckResult]: Stem: 13513#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_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 13514#L181-1 [2018-11-28 23:27:06,305 INFO L796 eck$LassoCheckResult]: Loop: 13514#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 13625#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 13620#L76 assume !(0 != main_~p1~0); 13612#L76-2 assume !(0 != main_~p2~0); 13605#L80-1 assume !(0 != main_~p3~0); 13600#L84-1 assume !(0 != main_~p4~0); 13592#L88-1 assume !(0 != main_~p5~0); 13584#L92-1 assume !(0 != main_~p6~0); 13577#L96-1 assume !(0 != main_~p7~0); 13568#L100-1 assume !(0 != main_~p8~0); 13569#L104-1 assume 0 != main_~p9~0;main_~lk9~0 := 1; 13706#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 13700#L112-1 assume !(0 != main_~p11~0); 13686#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 13684#L120-1 assume !(0 != main_~p1~0); 13682#L126-1 assume !(0 != main_~p2~0); 13679#L131-1 assume !(0 != main_~p3~0); 13674#L136-1 assume !(0 != main_~p4~0); 13670#L141-1 assume !(0 != main_~p5~0); 13666#L146-1 assume !(0 != main_~p6~0); 13663#L151-1 assume !(0 != main_~p7~0); 13661#L156-1 assume !(0 != main_~p8~0); 13660#L161-1 assume !(0 != main_~p9~0); 13658#L166-1 assume !(0 != main_~p10~0); 13656#L171-1 assume !(0 != main_~p11~0); 13636#L176-1 assume !(0 != main_~p12~0); 13514#L181-1 [2018-11-28 23:27:06,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:06,306 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 8 times [2018-11-28 23:27:06,306 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:06,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:06,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:06,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:06,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:06,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:06,328 INFO L82 PathProgramCache]: Analyzing trace with hash 276012010, now seen corresponding path program 1 times [2018-11-28 23:27:06,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:06,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:06,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:06,330 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:27:06,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:06,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:06,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:06,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:27:06,423 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:06,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:06,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:06,423 INFO L87 Difference]: Start difference. First operand 4417 states and 6593 transitions. cyclomatic complexity: 2304 Second operand 3 states. [2018-11-28 23:27:06,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:06,519 INFO L93 Difference]: Finished difference Result 8705 states and 12801 transitions. [2018-11-28 23:27:06,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:06,520 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8705 states and 12801 transitions. [2018-11-28 23:27:06,571 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 8704 [2018-11-28 23:27:06,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8705 states to 8705 states and 12801 transitions. [2018-11-28 23:27:06,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8705 [2018-11-28 23:27:06,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8705 [2018-11-28 23:27:06,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8705 states and 12801 transitions. [2018-11-28 23:27:06,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:06,657 INFO L705 BuchiCegarLoop]: Abstraction has 8705 states and 12801 transitions. [2018-11-28 23:27:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8705 states and 12801 transitions. [2018-11-28 23:27:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8705 to 8705. [2018-11-28 23:27:06,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8705 states. [2018-11-28 23:27:06,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8705 states to 8705 states and 12801 transitions. [2018-11-28 23:27:06,832 INFO L728 BuchiCegarLoop]: Abstraction has 8705 states and 12801 transitions. [2018-11-28 23:27:06,832 INFO L608 BuchiCegarLoop]: Abstraction has 8705 states and 12801 transitions. [2018-11-28 23:27:06,832 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-28 23:27:06,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8705 states and 12801 transitions. [2018-11-28 23:27:06,867 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 8704 [2018-11-28 23:27:06,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:06,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:06,868 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:06,868 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] [2018-11-28 23:27:06,869 INFO L794 eck$LassoCheckResult]: Stem: 26637#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 26638#L181-1 [2018-11-28 23:27:06,869 INFO L796 eck$LassoCheckResult]: Loop: 26638#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 26741#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 26737#L76 assume !(0 != main_~p1~0); 26735#L76-2 assume !(0 != main_~p2~0); 26733#L80-1 assume !(0 != main_~p3~0); 26729#L84-1 assume !(0 != main_~p4~0); 26725#L88-1 assume !(0 != main_~p5~0); 26721#L92-1 assume !(0 != main_~p6~0); 26717#L96-1 assume !(0 != main_~p7~0); 26713#L100-1 assume !(0 != main_~p8~0); 26709#L104-1 assume !(0 != main_~p9~0); 26707#L108-1 assume 0 != main_~p10~0;main_~lk10~0 := 1; 26705#L112-1 assume !(0 != main_~p11~0); 26703#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 26699#L120-1 assume !(0 != main_~p1~0); 26697#L126-1 assume !(0 != main_~p2~0); 26691#L131-1 assume !(0 != main_~p3~0); 26690#L136-1 assume !(0 != main_~p4~0); 26772#L141-1 assume !(0 != main_~p5~0); 26768#L146-1 assume !(0 != main_~p6~0); 26764#L151-1 assume !(0 != main_~p7~0); 26760#L156-1 assume !(0 != main_~p8~0); 26756#L161-1 assume !(0 != main_~p9~0); 26753#L166-1 assume !(0 != main_~p10~0); 26749#L171-1 assume !(0 != main_~p11~0); 26745#L176-1 assume !(0 != main_~p12~0); 26638#L181-1 [2018-11-28 23:27:06,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:06,869 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 9 times [2018-11-28 23:27:06,870 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:06,870 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:06,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:06,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:06,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:06,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:06,884 INFO L82 PathProgramCache]: Analyzing trace with hash -745056344, now seen corresponding path program 1 times [2018-11-28 23:27:06,884 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:06,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:06,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:06,886 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:27:06,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:06,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:06,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:06,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:27:06,977 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:06,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:06,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:06,978 INFO L87 Difference]: Start difference. First operand 8705 states and 12801 transitions. cyclomatic complexity: 4352 Second operand 3 states. [2018-11-28 23:27:07,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:07,132 INFO L93 Difference]: Finished difference Result 17153 states and 24833 transitions. [2018-11-28 23:27:07,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:07,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17153 states and 24833 transitions. [2018-11-28 23:27:07,250 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 17152 [2018-11-28 23:27:07,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17153 states to 17153 states and 24833 transitions. [2018-11-28 23:27:07,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17153 [2018-11-28 23:27:07,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17153 [2018-11-28 23:27:07,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17153 states and 24833 transitions. [2018-11-28 23:27:07,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:07,488 INFO L705 BuchiCegarLoop]: Abstraction has 17153 states and 24833 transitions. [2018-11-28 23:27:07,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17153 states and 24833 transitions. [2018-11-28 23:27:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17153 to 17153. [2018-11-28 23:27:07,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17153 states. [2018-11-28 23:27:07,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17153 states to 17153 states and 24833 transitions. [2018-11-28 23:27:07,753 INFO L728 BuchiCegarLoop]: Abstraction has 17153 states and 24833 transitions. [2018-11-28 23:27:07,753 INFO L608 BuchiCegarLoop]: Abstraction has 17153 states and 24833 transitions. [2018-11-28 23:27:07,753 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-28 23:27:07,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17153 states and 24833 transitions. [2018-11-28 23:27:07,819 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 17152 [2018-11-28 23:27:07,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:07,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:07,820 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:07,820 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] [2018-11-28 23:27:07,820 INFO L794 eck$LassoCheckResult]: Stem: 52502#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_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 52503#L181-1 [2018-11-28 23:27:07,820 INFO L796 eck$LassoCheckResult]: Loop: 52503#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 52618#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 52614#L76 assume !(0 != main_~p1~0); 52612#L76-2 assume !(0 != main_~p2~0); 52610#L80-1 assume !(0 != main_~p3~0); 52606#L84-1 assume !(0 != main_~p4~0); 52602#L88-1 assume !(0 != main_~p5~0); 52598#L92-1 assume !(0 != main_~p6~0); 52594#L96-1 assume !(0 != main_~p7~0); 52590#L100-1 assume !(0 != main_~p8~0); 52586#L104-1 assume !(0 != main_~p9~0); 52582#L108-1 assume !(0 != main_~p10~0); 52580#L112-1 assume !(0 != main_~p11~0); 52578#L116-1 assume 0 != main_~p12~0;main_~lk12~0 := 1; 52574#L120-1 assume !(0 != main_~p1~0); 52572#L126-1 assume !(0 != main_~p2~0); 52566#L131-1 assume !(0 != main_~p3~0); 52565#L136-1 assume !(0 != main_~p4~0); 52649#L141-1 assume !(0 != main_~p5~0); 52645#L146-1 assume !(0 != main_~p6~0); 52641#L151-1 assume !(0 != main_~p7~0); 52637#L156-1 assume !(0 != main_~p8~0); 52633#L161-1 assume !(0 != main_~p9~0); 52629#L166-1 assume !(0 != main_~p10~0); 52626#L171-1 assume !(0 != main_~p11~0); 52622#L176-1 assume !(0 != main_~p12~0); 52503#L181-1 [2018-11-28 23:27:07,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:07,821 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 10 times [2018-11-28 23:27:07,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:07,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:07,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:07,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:07,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:07,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:07,831 INFO L82 PathProgramCache]: Analyzing trace with hash -2024920022, now seen corresponding path program 1 times [2018-11-28 23:27:07,831 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:07,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:07,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:07,833 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:27:07,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:27:07,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:27:07,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:27:07,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:27:07,901 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:27:07,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:27:07,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:27:07,903 INFO L87 Difference]: Start difference. First operand 17153 states and 24833 transitions. cyclomatic complexity: 8192 Second operand 3 states. [2018-11-28 23:27:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:27:08,089 INFO L93 Difference]: Finished difference Result 33793 states and 48129 transitions. [2018-11-28 23:27:08,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:27:08,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33793 states and 48129 transitions. [2018-11-28 23:27:08,242 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 33792 [2018-11-28 23:27:08,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33793 states to 33793 states and 48129 transitions. [2018-11-28 23:27:08,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33793 [2018-11-28 23:27:08,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33793 [2018-11-28 23:27:08,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33793 states and 48129 transitions. [2018-11-28 23:27:08,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:27:08,435 INFO L705 BuchiCegarLoop]: Abstraction has 33793 states and 48129 transitions. [2018-11-28 23:27:08,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33793 states and 48129 transitions. [2018-11-28 23:27:08,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33793 to 33793. [2018-11-28 23:27:08,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33793 states. [2018-11-28 23:27:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33793 states to 33793 states and 48129 transitions. [2018-11-28 23:27:08,977 INFO L728 BuchiCegarLoop]: Abstraction has 33793 states and 48129 transitions. [2018-11-28 23:27:08,977 INFO L608 BuchiCegarLoop]: Abstraction has 33793 states and 48129 transitions. [2018-11-28 23:27:08,977 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-28 23:27:08,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33793 states and 48129 transitions. [2018-11-28 23:27:09,213 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 33792 [2018-11-28 23:27:09,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:27:09,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:27:09,214 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:27:09,214 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] [2018-11-28 23:27:09,215 INFO L794 eck$LassoCheckResult]: Stem: 103453#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~p6~0, main_~lk6~0, main_~p7~0, main_~lk7~0, main_~p8~0, main_~lk8~0, main_~p9~0, main_~lk9~0, main_~p10~0, main_~lk10~0, main_~p11~0, main_~lk11~0, main_~p12~0, main_~lk12~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;main_~p6~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~lk6~0;main_~p7~0 := main_#t~nondet6;havoc main_#t~nondet6;havoc main_~lk7~0;main_~p8~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk8~0;main_~p9~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk9~0;main_~p10~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk10~0;main_~p11~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk11~0;main_~p12~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk12~0;havoc main_~cond~0; 103454#L181-1 [2018-11-28 23:27:09,215 INFO L796 eck$LassoCheckResult]: Loop: 103454#L181-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 103573#L47 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0;main_~lk6~0 := 0;main_~lk7~0 := 0;main_~lk8~0 := 0;main_~lk9~0 := 0;main_~lk10~0 := 0;main_~lk11~0 := 0;main_~lk12~0 := 0; 103569#L76 assume !(0 != main_~p1~0); 103567#L76-2 assume !(0 != main_~p2~0); 103565#L80-1 assume !(0 != main_~p3~0); 103561#L84-1 assume !(0 != main_~p4~0); 103557#L88-1 assume !(0 != main_~p5~0); 103553#L92-1 assume !(0 != main_~p6~0); 103549#L96-1 assume !(0 != main_~p7~0); 103545#L100-1 assume !(0 != main_~p8~0); 103541#L104-1 assume !(0 != main_~p9~0); 103537#L108-1 assume !(0 != main_~p10~0); 103535#L112-1 assume !(0 != main_~p11~0); 103531#L116-1 assume !(0 != main_~p12~0); 103527#L120-1 assume !(0 != main_~p1~0); 103525#L126-1 assume !(0 != main_~p2~0); 103519#L131-1 assume !(0 != main_~p3~0); 103518#L136-1 assume !(0 != main_~p4~0); 103604#L141-1 assume !(0 != main_~p5~0); 103600#L146-1 assume !(0 != main_~p6~0); 103596#L151-1 assume !(0 != main_~p7~0); 103592#L156-1 assume !(0 != main_~p8~0); 103588#L161-1 assume !(0 != main_~p9~0); 103584#L166-1 assume !(0 != main_~p10~0); 103581#L171-1 assume !(0 != main_~p11~0); 103576#L176-1 assume !(0 != main_~p12~0); 103454#L181-1 [2018-11-28 23:27:09,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:09,215 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 11 times [2018-11-28 23:27:09,215 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:09,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:09,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:09,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:09,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:09,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:09,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1683241260, now seen corresponding path program 1 times [2018-11-28 23:27:09,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:09,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:09,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:09,230 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:27:09,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:09,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:27:09,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1428504715, now seen corresponding path program 1 times [2018-11-28 23:27:09,249 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:27:09,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:27:09,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:09,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:27:09,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:27:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:27:09,711 WARN L180 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-11-28 23:27:10,033 WARN L180 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-11-28 23:27:10,291 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-11-28 23:27:10,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:27:10 BoogieIcfgContainer [2018-11-28 23:27:10,388 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:27:10,389 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:27:10,389 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:27:10,389 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:27:10,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:27:04" (3/4) ... [2018-11-28 23:27:10,397 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:27:10,504 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:27:10,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:27:10,507 INFO L168 Benchmark]: Toolchain (without parser) took 7670.60 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 256.4 MB). Free memory was 951.3 MB in the beginning and 1.2 GB in the end (delta: -200.0 MB). Peak memory consumption was 56.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:27:10,508 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:27:10,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:27:10,510 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.84 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:27:10,510 INFO L168 Benchmark]: Boogie Preprocessor took 50.95 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:27:10,510 INFO L168 Benchmark]: RCFGBuilder took 760.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -122.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:27:10,511 INFO L168 Benchmark]: BuchiAutomizer took 6301.22 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -94.0 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:27:10,511 INFO L168 Benchmark]: Witness Printer took 115.86 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:27:10,517 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 381.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.84 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.95 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 760.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -122.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6301.22 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -94.0 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. * Witness Printer took 115.86 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. 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 33793 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.1s and 11 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.7s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 10. Minimization of nondet autom 0. Automata minimization 1.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.8s Buchi closure took 0.0s. Biggest automaton had 33793 states and ocurred in iteration 10. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 947 SDtfs, 496 SDslu, 585 SDs, 0 SdLazy, 50 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s 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: 45]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {p1=0, \result=0, p3=0, p2=0, p5=0, p10=0, p4=0, p7=0, p6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35d0dc2=0, p9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b6f55a5=0, p8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@233e136a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cd6f458=0, lk12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f5ef28e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9536a1b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e0ad062=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@620b45ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38924abc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fed8cc0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12227ef1=0, p11=0, lk10=0, p12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d8375ba=0, lk11=0, cond=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63c8f677=1, lk3=0, lk4=0, lk5=0, lk6=0, lk1=0, lk2=0, lk7=0, lk8=0, lk9=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 45]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L43] int cond; Loop: [L45] COND TRUE 1 [L46] cond = __VERIFIER_nondet_int() [L47] COND FALSE !(cond == 0) [L50] lk1 = 0 [L52] lk2 = 0 [L54] lk3 = 0 [L56] lk4 = 0 [L58] lk5 = 0 [L60] lk6 = 0 [L62] lk7 = 0 [L64] lk8 = 0 [L66] lk9 = 0 [L68] lk10 = 0 [L70] lk11 = 0 [L72] lk12 = 0 [L76] COND FALSE !(p1 != 0) [L80] COND FALSE !(p2 != 0) [L84] COND FALSE !(p3 != 0) [L88] COND FALSE !(p4 != 0) [L92] COND FALSE !(p5 != 0) [L96] COND FALSE !(p6 != 0) [L100] COND FALSE !(p7 != 0) [L104] COND FALSE !(p8 != 0) [L108] COND FALSE !(p9 != 0) [L112] COND FALSE !(p10 != 0) [L116] COND FALSE !(p11 != 0) [L120] COND FALSE !(p12 != 0) [L126] COND FALSE !(p1 != 0) [L131] COND FALSE !(p2 != 0) [L136] COND FALSE !(p3 != 0) [L141] COND FALSE !(p4 != 0) [L146] COND FALSE !(p5 != 0) [L151] COND FALSE !(p6 != 0) [L156] COND FALSE !(p7 != 0) [L161] COND FALSE !(p8 != 0) [L166] COND FALSE !(p9 != 0) [L171] COND FALSE !(p10 != 0) [L176] COND FALSE !(p11 != 0) [L181] COND FALSE !(p12 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...