./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaC3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/termination-restricted-15/PastaC3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash d74da2e3412ebf25201dbb4db5374c4c67ab19bd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:31:24,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:31:24,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:31:24,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:31:24,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:31:24,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:31:24,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:31:24,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:31:24,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:31:24,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:31:24,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:31:24,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:31:24,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:31:24,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:31:24,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:31:24,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:31:24,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:31:24,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:31:24,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:31:24,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:31:24,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:31:24,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:31:24,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:31:24,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:31:24,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:31:24,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:31:24,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:31:24,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:31:24,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:31:24,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:31:24,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:31:24,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:31:24,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:31:24,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:31:24,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:31:24,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:31:24,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:31:24,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:31:24,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:31:24,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:31:24,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:31:24,137 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:31:24,174 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:31:24,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:31:24,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:31:24,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:31:24,180 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:31:24,181 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:31:24,181 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:31:24,181 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:31:24,181 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:31:24,182 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:31:24,183 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:31:24,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:31:24,184 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:31:24,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:31:24,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:31:24,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:31:24,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:31:24,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:31:24,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:31:24,186 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:31:24,186 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:31:24,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:31:24,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:31:24,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:31:24,188 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:31:24,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:31:24,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:31:24,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:31:24,189 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:31:24,190 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:31:24,191 INFO L138 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d74da2e3412ebf25201dbb4db5374c4c67ab19bd [2019-11-28 20:31:24,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:31:24,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:31:24,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:31:24,537 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:31:24,538 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:31:24,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaC3.c [2019-11-28 20:31:24,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1f35a41/b2adc33165704c899356fa2aacd922b4/FLAG8b753a2cc [2019-11-28 20:31:25,115 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:31:25,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaC3.c [2019-11-28 20:31:25,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1f35a41/b2adc33165704c899356fa2aacd922b4/FLAG8b753a2cc [2019-11-28 20:31:25,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1f35a41/b2adc33165704c899356fa2aacd922b4 [2019-11-28 20:31:25,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:31:25,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:31:25,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:31:25,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:31:25,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:31:25,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d39d2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25, skipping insertion in model container [2019-11-28 20:31:25,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:31:25,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:31:25,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:31:25,757 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:31:25,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:31:25,793 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:31:25,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25 WrapperNode [2019-11-28 20:31:25,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:31:25,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:31:25,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:31:25,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:31:25,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:31:25,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:31:25,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:31:25,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:31:25,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (1/1) ... [2019-11-28 20:31:25,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:31:25,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:31:25,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:31:25,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:31:25,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (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 [2019-11-28 20:31:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:31:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:31:26,092 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:31:26,092 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:31:26,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:26 BoogieIcfgContainer [2019-11-28 20:31:26,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:31:26,094 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:31:26,094 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:31:26,097 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:31:26,098 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:26,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:31:25" (1/3) ... [2019-11-28 20:31:26,099 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b5d5e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:31:26, skipping insertion in model container [2019-11-28 20:31:26,099 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:26,099 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:25" (2/3) ... [2019-11-28 20:31:26,100 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b5d5e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:31:26, skipping insertion in model container [2019-11-28 20:31:26,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:26,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:26" (3/3) ... [2019-11-28 20:31:26,101 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaC3.c [2019-11-28 20:31:26,149 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:31:26,150 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:31:26,150 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:31:26,150 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:31:26,150 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:31:26,150 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:31:26,150 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:31:26,150 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:31:26,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 20:31:26,182 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:26,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:26,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:26,188 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:31:26,189 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:31:26,189 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:31:26,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 20:31:26,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:26,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:26,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:26,190 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:31:26,191 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:31:26,198 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L14-2true [2019-11-28 20:31:26,198 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~x~0 < main_~y~0); 9#L14true assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 6#L14-2true [2019-11-28 20:31:26,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:26,204 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 20:31:26,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:26,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798906366] [2019-11-28 20:31:26,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:26,297 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:26,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:26,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-28 20:31:26,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:26,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540635658] [2019-11-28 20:31:26,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:26,315 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:26,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:26,317 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-28 20:31:26,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:26,318 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118299279] [2019-11-28 20:31:26,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:26,336 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:26,487 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:26,488 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:26,488 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:26,488 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:26,489 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:31:26,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:26,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:26,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:26,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2019-11-28 20:31:26,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:26,490 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:26,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:26,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:26,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:26,759 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:26,760 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:26,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:26,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:26,775 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:26,776 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:26,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:26,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:26,795 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:26,795 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:26,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:26,810 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:26,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:26,826 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:26,965 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:31:26,968 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:26,968 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:26,968 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:26,968 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:26,968 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:31:26,968 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:26,969 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:26,969 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:26,969 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2019-11-28 20:31:26,969 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:26,969 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:26,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:26,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:26,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:27,085 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:27,091 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:27,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:31:27,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:27,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:27,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:27,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:27,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:27,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,138 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:27,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:31:27,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:27,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:27,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:27,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:27,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:31:27,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:27,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:31:27,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:27,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:27,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:27,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:27,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:27,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:27,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,217 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:31:27,226 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-28 20:31:27,228 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:27,235 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:31:27,236 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:31:27,236 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:31:27,237 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,243 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 20:31:27,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:27,301 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:31:27,303 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:27,314 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:31:27,317 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:27,360 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:31:27,362 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-28 20:31:27,423 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2019-11-28 20:31:27,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 20:31:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:31:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2019-11-28 20:31:27,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-28 20:31:27,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:27,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-28 20:31:27,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:27,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-28 20:31:27,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:27,430 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2019-11-28 20:31:27,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:27,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2019-11-28 20:31:27,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-28 20:31:27,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-28 20:31:27,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-28 20:31:27,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:31:27,440 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-28 20:31:27,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-28 20:31:27,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-28 20:31:27,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 20:31:27,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-28 20:31:27,470 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 20:31:27,470 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 20:31:27,471 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:31:27,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-28 20:31:27,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:27,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:27,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:27,472 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:31:27,472 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:31:27,473 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 64#L14-2 assume !!(main_~x~0 < main_~y~0); 66#L14 [2019-11-28 20:31:27,473 INFO L796 eck$LassoCheckResult]: Loop: 66#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 65#L14-2 assume !!(main_~x~0 < main_~y~0); 66#L14 [2019-11-28 20:31:27,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:27,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-28 20:31:27,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:27,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564439102] [2019-11-28 20:31:27,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:27,483 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:27,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:27,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-11-28 20:31:27,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:27,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176781058] [2019-11-28 20:31:27,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:27,494 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:27,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:27,494 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2019-11-28 20:31:27,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:27,495 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583942657] [2019-11-28 20:31:27,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:27,506 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:27,530 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:27,530 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:27,530 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:27,530 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:27,531 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:31:27,531 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,531 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:27,531 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:27,531 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2019-11-28 20:31:27,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:27,532 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:27,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:27,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:27,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:27,599 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:27,599 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:27,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:27,613 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:27,613 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:27,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:27,635 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:27,636 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:27,649 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:27,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:27,934 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:31:27,936 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:27,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:27,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:27,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:27,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:31:27,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:27,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:27,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:27,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2019-11-28 20:31:27,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:27,937 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:27,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:27,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:27,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:28,013 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:28,013 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:28,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:28,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:28,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:28,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:28,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:28,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:28,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:31:28,040 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:28,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:31:28,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:28,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:28,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:28,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:28,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:28,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:28,069 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:28,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:31:28,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:28,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:28,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:28,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:28,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:28,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:28,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:31:28,096 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:31:28,115 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 20:31:28,115 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:28,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:31:28,120 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:31:28,120 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:31:28,121 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2019-11-28 20:31:28,123 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 20:31:28,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:28,148 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:31:28,149 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:28,154 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:31:28,154 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:28,189 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:31:28,189 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-28 20:31:28,205 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2019-11-28 20:31:28,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:31:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:31:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-28 20:31:28,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-28 20:31:28,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:28,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 20:31:28,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:28,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-28 20:31:28,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:28,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2019-11-28 20:31:28,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:28,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2019-11-28 20:31:28,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-28 20:31:28,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-28 20:31:28,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2019-11-28 20:31:28,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:31:28,212 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-28 20:31:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2019-11-28 20:31:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-28 20:31:28,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 20:31:28,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2019-11-28 20:31:28,214 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-28 20:31:28,214 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-28 20:31:28,214 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:31:28,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2019-11-28 20:31:28,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:28,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:28,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:28,216 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2019-11-28 20:31:28,216 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:31:28,216 INFO L794 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 119#L14-2 assume !!(main_~x~0 < main_~y~0); 120#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 127#L14-2 assume !!(main_~x~0 < main_~y~0); 123#L14 [2019-11-28 20:31:28,216 INFO L796 eck$LassoCheckResult]: Loop: 123#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 124#L14-2 assume !!(main_~x~0 < main_~y~0); 123#L14 [2019-11-28 20:31:28,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:28,216 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2019-11-28 20:31:28,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:28,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613009675] [2019-11-28 20:31:28,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:28,229 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:28,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:28,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2019-11-28 20:31:28,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:28,230 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013251544] [2019-11-28 20:31:28,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:28,238 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:28,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:28,239 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 1 times [2019-11-28 20:31:28,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:28,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955860504] [2019-11-28 20:31:28,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:28,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:28,276 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:28,276 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:28,276 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:28,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:28,276 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:31:28,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:28,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:28,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:28,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2019-11-28 20:31:28,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:28,277 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:28,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:28,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:28,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:28,347 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:28,347 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:28,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:28,356 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:28,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:28,380 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:28,730 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:31:28,732 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:28,732 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:28,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:28,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:28,733 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:31:28,733 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:28,733 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:28,733 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:28,733 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2019-11-28 20:31:28,733 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:28,734 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:28,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:28,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:28,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:28,796 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:28,796 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:28,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:28,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:28,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:28,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:28,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:28,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:28,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:28,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:31:28,831 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:31:28,836 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 20:31:28,836 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:28,860 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:31:28,860 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:31:28,861 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:31:28,861 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2019-11-28 20:31:28,865 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:28,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:28,892 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:31:28,893 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:28,899 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:31:28,900 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:28,923 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:31:28,923 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-28 20:31:28,939 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2019-11-28 20:31:28,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:31:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:31:28,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-28 20:31:28,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 20:31:28,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:28,941 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:31:28,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:28,971 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:31:28,971 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:28,978 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:31:28,978 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:28,998 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:31:28,998 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-28 20:31:29,026 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2019-11-28 20:31:29,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:31:29,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:31:29,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2019-11-28 20:31:29,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 20:31:29,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:29,028 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:31:29,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:29,047 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:31:29,047 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:29,052 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:31:29,053 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:29,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:29,072 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:31:29,072 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-28 20:31:29,085 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 17 states and 22 transitions. Complement of second has 4 states. [2019-11-28 20:31:29,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:31:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:31:29,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-28 20:31:29,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 20:31:29,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:29,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-28 20:31:29,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:29,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-28 20:31:29,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:29,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2019-11-28 20:31:29,089 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:31:29,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2019-11-28 20:31:29,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:31:29,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:31:29,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:31:29,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:31:29,090 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:31:29,090 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:31:29,090 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:31:29,091 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:31:29,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:31:29,091 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:31:29,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:31:29,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:31:29 BoogieIcfgContainer [2019-11-28 20:31:29,098 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:31:29,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:31:29,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:31:29,099 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:31:29,101 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:26" (3/4) ... [2019-11-28 20:31:29,107 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:31:29,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:31:29,111 INFO L168 Benchmark]: Toolchain (without parser) took 3572.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 961.7 MB in the beginning and 859.3 MB in the end (delta: 102.4 MB). Peak memory consumption was 231.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:29,112 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:29,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.20 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 949.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:29,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:29,121 INFO L168 Benchmark]: Boogie Preprocessor took 15.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:29,122 INFO L168 Benchmark]: RCFGBuilder took 194.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:29,123 INFO L168 Benchmark]: BuchiAutomizer took 3004.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 859.3 MB in the end (delta: 248.7 MB). Peak memory consumption was 248.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:29,123 INFO L168 Benchmark]: Witness Printer took 8.41 ms. Allocated memory is still 1.2 GB. Free memory is still 859.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:29,139 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.20 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 949.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 194.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3004.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 859.3 MB in the end (delta: 248.7 MB). Peak memory consumption was 248.7 MB. Max. memory is 11.5 GB. * Witness Printer took 8.41 ms. Allocated memory is still 1.2 GB. Free memory is still 859.3 MB. 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * x + y and consists of 5 locations. One deterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 18 SDslu, 6 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax187 hnf97 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...