./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab 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-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:57:14,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:57:14,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:57:14,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:57:14,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:57:14,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:57:14,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:57:14,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:57:14,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:57:14,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:57:14,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:57:14,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:57:14,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:57:14,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:57:14,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:57:14,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:57:14,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:57:14,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:57:14,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:57:14,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:57:14,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:57:14,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:57:14,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:57:14,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:57:14,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:57:14,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:57:14,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:57:14,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:57:14,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:57:14,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:57:14,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:57:14,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:57:14,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:57:14,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:57:14,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:57:14,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:57:14,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:57:14,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:57:14,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:57:14,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:57:14,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:57:14,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 02:57:14,187 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:57:14,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:57:14,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:57:14,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:57:14,193 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:57:14,193 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 02:57:14,193 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 02:57:14,193 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 02:57:14,194 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 02:57:14,194 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 02:57:14,194 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 02:57:14,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:57:14,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:57:14,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:57:14,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:57:14,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 02:57:14,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 02:57:14,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 02:57:14,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:57:14,198 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 02:57:14,198 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:57:14,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 02:57:14,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:57:14,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:57:14,199 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 02:57:14,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:57:14,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:57:14,203 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 02:57:14,205 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 02:57:14,205 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 -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2019-11-28 02:57:14,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:57:14,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:57:14,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:57:14,557 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:57:14,559 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:57:14,560 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-28 02:57:14,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93eacaa08/b6295521ea47486ca8b7acebe61e4827/FLAG01d943243 [2019-11-28 02:57:15,059 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:57:15,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-28 02:57:15,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93eacaa08/b6295521ea47486ca8b7acebe61e4827/FLAG01d943243 [2019-11-28 02:57:15,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93eacaa08/b6295521ea47486ca8b7acebe61e4827 [2019-11-28 02:57:15,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:57:15,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:57:15,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:57:15,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:57:15,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:57:15,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57cbf806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15, skipping insertion in model container [2019-11-28 02:57:15,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:57:15,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:57:15,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:57:15,762 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:57:15,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:57:15,799 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:57:15,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15 WrapperNode [2019-11-28 02:57:15,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:57:15,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:57:15,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:57:15,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:57:15,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:57:15,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:57:15,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:57:15,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:57:15,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2019-11-28 02:57:15,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:57:15,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:57:15,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:57:15,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:57:15,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (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 02:57:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:57:15,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:57:16,122 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:57:16,123 INFO L297 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 02:57:16,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:16 BoogieIcfgContainer [2019-11-28 02:57:16,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:57:16,124 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 02:57:16,125 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 02:57:16,127 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 02:57:16,128 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:57:16,128 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:57:15" (1/3) ... [2019-11-28 02:57:16,130 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f9894d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:16, skipping insertion in model container [2019-11-28 02:57:16,130 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:57:16,130 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (2/3) ... [2019-11-28 02:57:16,130 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f9894d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:16, skipping insertion in model container [2019-11-28 02:57:16,131 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:57:16,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:16" (3/3) ... [2019-11-28 02:57:16,133 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-28 02:57:16,184 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 02:57:16,184 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 02:57:16,184 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 02:57:16,184 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:57:16,185 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:57:16,185 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 02:57:16,185 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:57:16,185 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 02:57:16,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-28 02:57:16,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 02:57:16,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:57:16,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:57:16,226 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 02:57:16,226 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 02:57:16,226 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 02:57:16,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-28 02:57:16,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 02:57:16,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:57:16,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:57:16,228 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 02:57:16,228 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 02:57:16,235 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 3#L17-2true [2019-11-28 02:57:16,235 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 6#L19-2true assume !(main_~j~0 > 0); 5#L19-3true main_~i~0 := main_~i~0 - 1; 3#L17-2true [2019-11-28 02:57:16,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:16,242 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 02:57:16,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:57:16,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200132489] [2019-11-28 02:57:16,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:57:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:16,361 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:57:16,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:16,363 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-11-28 02:57:16,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:57:16,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477991015] [2019-11-28 02:57:16,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:57:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:16,378 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:57:16,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:16,381 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-11-28 02:57:16,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:57:16,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124084758] [2019-11-28 02:57:16,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:57:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:16,529 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 02:57:16,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124084758] [2019-11-28 02:57:16,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:57:16,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:57:16,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276948083] [2019-11-28 02:57:16,638 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:57:16,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:57:16,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:57:16,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:57:16,640 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:57:16,640 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:16,640 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:57:16,640 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:57:16,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2019-11-28 02:57:16,641 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:57:16,641 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:57:16,660 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 02:57:16,671 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 02:57:16,680 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 02:57:16,696 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 02:57:16,807 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:57:16,808 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 02:57:16,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:57:16,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:57:16,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:57:16,831 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) [2019-11-28 02:57:16,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:57:16,855 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:16,861 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:57:16,862 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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:16,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:57:16,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:57:16,890 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:57:16,890 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=-3, ULTIMATE.start_main_~N~0=-3} Honda state: {ULTIMATE.start_main_~j~0=-3, ULTIMATE.start_main_~N~0=-3} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:16,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:57:16,898 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:16,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:57:16,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:57:16,923 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:57:16,924 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:57:16,925 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:57:16,925 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:57:16,925 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:57:16,925 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:57:16,925 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:16,925 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:57:16,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:57:16,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2019-11-28 02:57:16,926 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:57:16,926 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:57:16,928 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 02:57:16,944 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 02:57:16,954 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 02:57:16,960 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 02:57:17,052 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:57:17,060 INFO L489 LassoAnalysis]: Using template 'affine'. 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 02:57:17,076 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 02:57:17,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:57:17,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:57:17,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:57:17,082 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 02:57:17,097 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:57:17,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:57:17,111 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 02:57:17,131 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 02:57:17,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:57:17,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:57:17,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:57:17,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:57:17,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:57:17,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:57:17,138 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 02:57:17,143 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:57:17,162 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 02:57:17,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:57:17,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:57:17,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:57:17,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:57:17,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:57:17,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:17,184 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:57:17,201 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 02:57:17,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:57:17,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:57:17,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:57:17,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:57:17,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:57:17,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:57:17,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:17,212 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:57:17,216 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 02:57:17,217 INFO L444 ModelExtractionUtils]: 0 out of 3 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:57:17,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:57:17,233 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:57:17,233 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:57:17,234 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-28 02:57:17,242 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:17,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:17,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:57:17,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:17,299 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:57:17,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:17,314 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 02:57:17,333 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 02:57:17,335 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-28 02:57:17,379 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2019-11-28 02:57:17,380 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 02:57:17,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:57:17,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-11-28 02:57:17,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-28 02:57:17,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:17,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-28 02:57:17,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:17,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-28 02:57:17,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:17,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2019-11-28 02:57:17,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 02:57:17,395 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-28 02:57:17,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-28 02:57:17,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-28 02:57:17,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-28 02:57:17,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:57:17,398 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 02:57:17,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-28 02:57:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-11-28 02:57:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-28 02:57:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-11-28 02:57:17,427 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-28 02:57:17,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:57:17,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:57:17,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:57:17,433 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. Second operand 4 states. [2019-11-28 02:57:17,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:57:17,465 INFO L93 Difference]: Finished difference Result 11 states and 15 transitions. [2019-11-28 02:57:17,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:57:17,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2019-11-28 02:57:17,467 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-28 02:57:17,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 15 transitions. [2019-11-28 02:57:17,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-28 02:57:17,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-28 02:57:17,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2019-11-28 02:57:17,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:57:17,469 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-28 02:57:17,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2019-11-28 02:57:17,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2019-11-28 02:57:17,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 02:57:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-28 02:57:17,471 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 02:57:17,471 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 02:57:17,472 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 02:57:17,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-28 02:57:17,472 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 02:57:17,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:57:17,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:57:17,473 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 02:57:17,473 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 02:57:17,474 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 91#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 93#L19-2 [2019-11-28 02:57:17,474 INFO L796 eck$LassoCheckResult]: Loop: 93#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 93#L19-2 [2019-11-28 02:57:17,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:17,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-28 02:57:17,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:57:17,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621445193] [2019-11-28 02:57:17,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:57:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:17,483 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:57:17,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:17,484 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-28 02:57:17,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:57:17,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010447394] [2019-11-28 02:57:17,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:57:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:17,492 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:57:17,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:17,493 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-28 02:57:17,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:57:17,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593491121] [2019-11-28 02:57:17,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:57:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:17,504 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:57:17,515 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:57:17,516 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:57:17,516 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:57:17,516 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:57:17,516 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:57:17,516 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:17,517 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:57:17,517 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:57:17,517 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2019-11-28 02:57:17,517 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:57:17,517 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:57:17,519 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 02:57:17,523 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 02:57:17,530 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 02:57:17,582 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:57:17,582 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2019-11-28 02:57:17,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:57:17,595 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:17,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:57:17,609 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 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 02:57:17,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:57:17,626 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 02:57:17,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:57:17,647 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:17,657 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:57:17,660 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:57:17,660 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:57:17,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:57:17,661 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:57:17,661 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:57:17,661 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:17,661 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:57:17,661 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:57:17,661 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2019-11-28 02:57:17,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:57:17,662 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:57:17,664 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 02:57:17,668 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 02:57:17,677 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 02:57:17,721 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:57:17,721 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:17,732 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 02:57:17,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:57:17,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:57:17,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:57:17,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:57:17,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:57:17,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:57:17,742 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 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 02:57:17,755 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 02:57:17,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:57:17,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:57:17,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:57:17,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:57:17,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:57:17,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:57:17,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:57:17,762 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:57:17,779 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-28 02:57:17,780 INFO L444 ModelExtractionUtils]: 1 out of 3 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) [2019-11-28 02:57:17,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:57:17,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:57:17,786 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:57:17,787 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-28 02:57:17,789 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:17,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:17,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:57:17,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:17,842 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:57:17,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:17,842 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 02:57:17,843 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 02:57:17,843 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-28 02:57:17,859 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 14 states and 19 transitions. Complement of second has 5 states. [2019-11-28 02:57:17,859 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 02:57:17,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 02:57:17,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-28 02:57:17,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-28 02:57:17,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:17,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-28 02:57:17,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:17,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-28 02:57:17,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:17,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2019-11-28 02:57:17,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 02:57:17,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2019-11-28 02:57:17,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-28 02:57:17,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2019-11-28 02:57:17,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2019-11-28 02:57:17,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:57:17,864 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2019-11-28 02:57:17,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2019-11-28 02:57:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2019-11-28 02:57:17,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 02:57:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-11-28 02:57:17,866 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-28 02:57:17,867 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-28 02:57:17,867 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 02:57:17,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2019-11-28 02:57:17,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 02:57:17,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:57:17,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:57:17,868 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2019-11-28 02:57:17,869 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 02:57:17,869 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 141#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 142#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 145#L19-2 assume !(main_~j~0 > 0); 146#L19-3 main_~i~0 := main_~i~0 - 1; 143#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 144#L19-2 [2019-11-28 02:57:17,869 INFO L796 eck$LassoCheckResult]: Loop: 144#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 144#L19-2 [2019-11-28 02:57:17,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:17,870 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2019-11-28 02:57:17,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:57:17,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269648527] [2019-11-28 02:57:17,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:57:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:57:17,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269648527] [2019-11-28 02:57:17,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405990208] [2019-11-28 02:57:17,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-28 02:57:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:17,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 02:57:17,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:57:18,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:57:18,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:57:18,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-11-28 02:57:18,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035505110] [2019-11-28 02:57:18,032 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 02:57:18,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:18,033 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2019-11-28 02:57:18,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:57:18,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479500277] [2019-11-28 02:57:18,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:57:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:57:18,053 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:57:18,068 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:57:18,069 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:57:18,069 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:57:18,069 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:57:18,069 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:57:18,069 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:18,069 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:57:18,069 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:57:18,070 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2019-11-28 02:57:18,070 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:57:18,070 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:57:18,072 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 02:57:18,078 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 02:57:18,086 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 02:57:18,130 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:57:18,131 INFO L404 LassoAnalysis]: Checking for nontermination... 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 02:57:18,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:57:18,141 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 02:57:18,146 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:57:18,146 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 02:57:18,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:57:18,158 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:57:18,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:57:18,173 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:18,182 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:57:18,184 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:57:18,185 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:57:18,185 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:57:18,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:57:18,185 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:57:18,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:18,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:57:18,186 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:57:18,186 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2019-11-28 02:57:18,186 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:57:18,186 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:57:18,187 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 02:57:18,193 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 02:57:18,203 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 02:57:18,264 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:57:18,264 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:57:18,278 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 02:57:18,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:57:18,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:57:18,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:57:18,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:57:18,285 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:57:18,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:18,292 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:57:18,311 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 02:57:18,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:57:18,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:18,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:57:18,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:57:18,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:57:18,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:57:18,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:57:18,323 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:57:18,326 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 02:57:18,327 INFO L444 ModelExtractionUtils]: 0 out of 3 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:57:18,341 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:57:18,341 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:57:18,341 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:57:18,341 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-28 02:57:18,344 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:57:18,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:18,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:57:18,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:18,377 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:57:18,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:18,378 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 02:57:18,378 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 02:57:18,378 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-28 02:57:18,395 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2019-11-28 02:57:18,396 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 02:57:18,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 02:57:18,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-28 02:57:18,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-28 02:57:18,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:18,397 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 02:57:18,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:18,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:57:18,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:18,426 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:57:18,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:18,427 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 02:57:18,427 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 02:57:18,427 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-28 02:57:18,437 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2019-11-28 02:57:18,438 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 02:57:18,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 02:57:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-28 02:57:18,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-28 02:57:18,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:18,439 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 02:57:18,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:57:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:18,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:57:18,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:57:18,470 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:57:18,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:57:18,471 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 02:57:18,471 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 1 loop predicates [2019-11-28 02:57:18,472 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-28 02:57:18,486 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2019-11-28 02:57:18,487 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 02:57:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 02:57:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-11-28 02:57:18,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-28 02:57:18,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:18,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-28 02:57:18,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:18,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-28 02:57:18,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:57:18,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2019-11-28 02:57:18,490 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 02:57:18,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2019-11-28 02:57:18,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 02:57:18,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 02:57:18,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 02:57:18,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 02:57:18,493 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:57:18,493 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:57:18,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:57:18,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 02:57:18,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:57:18,496 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2019-11-28 02:57:18,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:57:18,496 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-28 02:57:18,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 02:57:18,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-28 02:57:18,497 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 02:57:18,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:57:18,497 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 02:57:18,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 02:57:18,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 02:57:18,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 02:57:18,500 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:57:18,500 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:57:18,500 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:57:18,501 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 02:57:18,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:57:18,501 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 02:57:18,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 02:57:18,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:57:18 BoogieIcfgContainer [2019-11-28 02:57:18,516 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 02:57:18,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:57:18,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:57:18,518 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:57:18,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:16" (3/4) ... [2019-11-28 02:57:18,524 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 02:57:18,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:57:18,532 INFO L168 Benchmark]: Toolchain (without parser) took 3059.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 957.7 MB in the beginning and 793.8 MB in the end (delta: 163.9 MB). Peak memory consumption was 256.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:57:18,533 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 02:57:18,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.39 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:57:18,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:57:18,535 INFO L168 Benchmark]: Boogie Preprocessor took 15.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:57:18,538 INFO L168 Benchmark]: RCFGBuilder took 214.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:57:18,539 INFO L168 Benchmark]: BuchiAutomizer took 2391.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 793.8 MB in the end (delta: 269.1 MB). Peak memory consumption was 269.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:57:18,540 INFO L168 Benchmark]: Witness Printer took 7.07 ms. Allocated memory is still 1.1 GB. Free memory is still 793.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:57:18,552 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 332.39 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 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 92.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 214.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2391.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 793.8 MB in the end (delta: 269.1 MB). Peak memory consumption was 269.1 MB. Max. memory is 11.5 GB. * Witness Printer took 7.07 ms. Allocated memory is still 1.1 GB. Free memory is still 793.8 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 27 SDtfs, 25 SDslu, 13 SDs, 0 SdLazy, 34 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax203 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...