./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/LogAG.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/LogAG.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 81a46fe8790e1f522cb67a9c253c8a7e6828f982 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:42:24,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:42:24,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:42:24,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:42:24,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:42:24,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:42:24,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:42:24,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:42:24,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:42:24,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:42:24,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:42:24,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:42:24,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:42:24,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:42:24,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:42:24,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:42:24,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:42:24,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:42:24,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:42:24,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:42:24,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:42:24,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:42:24,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:42:24,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:42:24,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:42:24,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:42:24,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:42:24,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:42:24,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:42:24,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:42:24,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:42:24,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:42:24,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:42:24,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:42:24,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:42:24,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:42:24,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:42:24,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:42:24,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:42:24,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:42:24,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:42:24,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:42:24,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:42:24,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:42:24,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:42:24,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:42:24,235 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:42:24,235 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:42:24,235 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:42:24,235 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:42:24,236 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:42:24,236 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:42:24,237 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:42:24,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:42:24,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:42:24,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:42:24,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:42:24,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:42:24,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:42:24,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:42:24,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:42:24,239 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:42:24,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:42:24,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:42:24,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:42:24,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:42:24,240 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:42:24,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:42:24,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:42:24,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:42:24,241 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:42:24,242 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:42:24,242 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 -> 81a46fe8790e1f522cb67a9c253c8a7e6828f982 [2020-10-19 18:42:24,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:42:24,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:42:24,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:42:24,565 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:42:24,565 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:42:24,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/LogAG.c [2020-10-19 18:42:24,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa01a2de/1dd0bcef63e148e593a0f1ff94184783/FLAG018bf664a [2020-10-19 18:42:25,032 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:42:25,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/LogAG.c [2020-10-19 18:42:25,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa01a2de/1dd0bcef63e148e593a0f1ff94184783/FLAG018bf664a [2020-10-19 18:42:25,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa01a2de/1dd0bcef63e148e593a0f1ff94184783 [2020-10-19 18:42:25,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:42:25,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:42:25,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:42:25,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:42:25,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:42:25,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2f5b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25, skipping insertion in model container [2020-10-19 18:42:25,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:42:25,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:42:25,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:42:25,656 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:42:25,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:42:25,686 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:42:25,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25 WrapperNode [2020-10-19 18:42:25,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:42:25,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:42:25,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:42:25,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:42:25,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:42:25,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:42:25,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:42:25,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:42:25,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... [2020-10-19 18:42:25,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:42:25,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:42:25,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:42:25,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:42:25,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:42:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:42:26,035 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:42:26,035 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-19 18:42:26,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:42:26 BoogieIcfgContainer [2020-10-19 18:42:26,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:42:26,038 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:42:26,038 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:42:26,042 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:42:26,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:42:26,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:42:25" (1/3) ... [2020-10-19 18:42:26,045 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74f856ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:42:26, skipping insertion in model container [2020-10-19 18:42:26,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:42:26,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:25" (2/3) ... [2020-10-19 18:42:26,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74f856ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:42:26, skipping insertion in model container [2020-10-19 18:42:26,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:42:26,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:42:26" (3/3) ... [2020-10-19 18:42:26,048 INFO L373 chiAutomizerObserver]: Analyzing ICFG LogAG.c [2020-10-19 18:42:26,104 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:42:26,104 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:42:26,104 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:42:26,105 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:42:26,105 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:42:26,105 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:42:26,105 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:42:26,106 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:42:26,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-19 18:42:26,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:42:26,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:26,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:26,150 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:42:26,151 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:42:26,151 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:42:26,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-19 18:42:26,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:42:26,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:26,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:26,153 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:42:26,153 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:42:26,162 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 6#L13-2true [2020-10-19 18:42:26,162 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 3#L17-2true assume !(main_~xtmp~0 > 1); 10#L17-3true main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 6#L13-2true [2020-10-19 18:42:26,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:26,169 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-19 18:42:26,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:26,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46041102] [2020-10-19 18:42:26,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:26,257 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:26,261 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:26,277 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:26,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:26,279 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-10-19 18:42:26,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:26,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787745727] [2020-10-19 18:42:26,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:26,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:26,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:26,300 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:26,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:26,302 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2020-10-19 18:42:26,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:26,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344659084] [2020-10-19 18:42:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:26,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:26,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:26,319 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:26,399 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:26,400 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:26,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:26,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:26,400 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:42:26,401 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:26,401 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:26,401 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:26,401 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration1_Loop [2020-10-19 18:42:26,401 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:26,402 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:26,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:26,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:26,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:26,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:26,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:26,640 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:26,640 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) [2020-10-19 18:42:26,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:26,661 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:26,671 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:26,671 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:26,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:26,708 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 [2020-10-19 18:42:26,712 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:26,713 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: [] 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 [2020-10-19 18:42:26,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:26,741 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2020-10-19 18:42:26,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:42:26,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:42:27,148 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:42:27,150 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:27,150 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:27,150 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:27,151 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:27,151 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:42:27,151 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:27,151 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:27,151 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:27,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration1_Loop [2020-10-19 18:42:27,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:27,152 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:27,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:27,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:27,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:27,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:27,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:27,274 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:27,279 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:27,289 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 [2020-10-19 18:42:27,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:27,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:27,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:27,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:27,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:27,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:42:27,305 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:27,331 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 [2020-10-19 18:42:27,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:27,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:42:27,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:27,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:27,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:27,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:42:27,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:42:27,339 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:27,363 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 [2020-10-19 18:42:27,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:27,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:27,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:27,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:27,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:27,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:42:27,374 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:27,401 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 [2020-10-19 18:42:27,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:27,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:42:27,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:27,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:27,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:27,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:42:27,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:42:27,414 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) [2020-10-19 18:42:27,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:27,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:27,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:42:27,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:27,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:27,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:27,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:42:27,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:42:27,465 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:42:27,469 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-10-19 18:42:27,470 INFO L444 ModelExtractionUtils]: 2 out of 4 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:27,474 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:42:27,474 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:42:27,474 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:42:27,475 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-10-19 18:42:27,510 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:42:27,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:27,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:27,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:27,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:42:27,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:42:27,629 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 [2020-10-19 18:42:27,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-10-19 18:42:27,701 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2020-10-19 18:42:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:42:27,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-10-19 18:42:27,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2020-10-19 18:42:27,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:27,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-19 18:42:27,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:27,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2020-10-19 18:42:27,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:27,709 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2020-10-19 18:42:27,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:27,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-10-19 18:42:27,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-19 18:42:27,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-19 18:42:27,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-10-19 18:42:27,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:42:27,719 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-19 18:42:27,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-10-19 18:42:27,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-10-19 18:42:27,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-19 18:42:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-10-19 18:42:27,748 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-19 18:42:27,749 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-19 18:42:27,749 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:42:27,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-10-19 18:42:27,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:27,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:27,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:27,750 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:42:27,750 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:42:27,751 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 75#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 71#L17-2 [2020-10-19 18:42:27,751 INFO L796 eck$LassoCheckResult]: Loop: 71#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 71#L17-2 [2020-10-19 18:42:27,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:27,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-19 18:42:27,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:27,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463037110] [2020-10-19 18:42:27,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:27,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:27,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:27,762 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:27,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:27,763 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-19 18:42:27,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:27,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974681232] [2020-10-19 18:42:27,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:27,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:27,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:27,772 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:27,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:27,773 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-10-19 18:42:27,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:27,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820052105] [2020-10-19 18:42:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:27,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:27,785 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:27,786 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:27,802 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:27,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:27,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:27,802 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:27,802 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:42:27,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:27,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:27,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:27,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration2_Loop [2020-10-19 18:42:27,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:27,803 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:27,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:27,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:27,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:27,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:27,873 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:27,873 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:27,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:27,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:42:27,892 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:27,892 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) [2020-10-19 18:42:27,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:27,946 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:27,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:42:27,997 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 [2020-10-19 18:42:28,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:28,017 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=-3}, {ULTIMATE.start_main_~restmp~0=-1}, {ULTIMATE.start_main_~restmp~0=5}] Lambdas: [1, 6, 1] Nus: [0, 1] 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 [2020-10-19 18:42:28,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:28,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:42:28,053 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:28,054 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 18:42:28,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:28,086 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:42:28,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:42:28,139 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:42:28,141 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:28,141 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:28,141 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:28,141 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:28,142 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:42:28,142 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,144 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:28,144 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:28,144 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration2_Loop [2020-10-19 18:42:28,144 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:28,145 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:28,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,215 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:28,216 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,225 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 [2020-10-19 18:42:28,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:28,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:28,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:28,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:28,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:28,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:42:28,235 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:28,277 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 [2020-10-19 18:42:28,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:28,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:42:28,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:28,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:28,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:28,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:42:28,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,284 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 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,319 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 [2020-10-19 18:42:28,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:28,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:28,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:28,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:28,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:28,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:42:28,328 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 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,359 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 [2020-10-19 18:42:28,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:28,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:42:28,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:28,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:28,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:28,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:42:28,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:42:28,366 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:42:28,368 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-10-19 18:42:28,368 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,372 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:42:28,372 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:42:28,372 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:42:28,373 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2020-10-19 18:42:28,394 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:42:28,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:28,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:28,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:28,420 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:42:28,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:42:28,421 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 [2020-10-19 18:42:28,421 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-10-19 18:42:28,444 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2020-10-19 18:42:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:28,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:42:28,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-19 18:42:28,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-19 18:42:28,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:28,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-19 18:42:28,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:28,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-19 18:42:28,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:28,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2020-10-19 18:42:28,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:28,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2020-10-19 18:42:28,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-19 18:42:28,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-10-19 18:42:28,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-10-19 18:42:28,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:42:28,453 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-10-19 18:42:28,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-10-19 18:42:28,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2020-10-19 18:42:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-19 18:42:28,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-10-19 18:42:28,457 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-10-19 18:42:28,457 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-10-19 18:42:28,457 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:42:28,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-10-19 18:42:28,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:28,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:28,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:28,460 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-10-19 18:42:28,460 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:42:28,462 INFO L794 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 123#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 120#L17-2 assume !(main_~xtmp~0 > 1); 121#L17-3 main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 124#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 119#L17-2 [2020-10-19 18:42:28,462 INFO L796 eck$LassoCheckResult]: Loop: 119#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 119#L17-2 [2020-10-19 18:42:28,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:28,464 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2020-10-19 18:42:28,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:28,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630678134] [2020-10-19 18:42:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:28,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:28,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:28,501 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:28,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:28,503 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2020-10-19 18:42:28,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:28,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717963366] [2020-10-19 18:42:28,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:28,513 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:28,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:28,522 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:28,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:28,523 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2020-10-19 18:42:28,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:28,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844446665] [2020-10-19 18:42:28,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:42:28,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844446665] [2020-10-19 18:42:28,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:42:28,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:42:28,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050914419] [2020-10-19 18:42:28,655 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:28,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:28,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:28,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:28,656 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:42:28,656 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:28,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:28,657 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration3_Loop [2020-10-19 18:42:28,657 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:28,657 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:28,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,726 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:28,727 INFO L404 LassoAnalysis]: Checking for nontermination... 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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:28,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:42:28,739 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:28,739 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:28,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:28,782 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,787 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:28,787 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:28,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:28,825 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:28,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:42:28,867 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,894 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:42:28,896 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:28,896 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:28,896 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:28,896 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:28,896 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:42:28,896 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,896 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:28,897 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:28,897 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration3_Loop [2020-10-19 18:42:28,897 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:28,897 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:28,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:28,968 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:28,968 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:28,977 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 [2020-10-19 18:42:28,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:28,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:28,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:28,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:28,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:28,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:28,987 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 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:29,032 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 [2020-10-19 18:42:29,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:29,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:42:29,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:29,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:29,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:29,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:42:29,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:42:29,045 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:42:29,049 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:42:29,049 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:29,052 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:42:29,052 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:42:29,052 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:42:29,053 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:29,084 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:42:29,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:29,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:29,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:29,124 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:42:29,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:29,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:42:29,125 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 [2020-10-19 18:42:29,125 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-19 18:42:29,137 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2020-10-19 18:42:29,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:29,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:42:29,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-19 18:42:29,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-19 18:42:29,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:29,138 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:42:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:29,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:29,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:29,162 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:42:29,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:42:29,162 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 [2020-10-19 18:42:29,163 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-19 18:42:29,173 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2020-10-19 18:42:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:29,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:42:29,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-19 18:42:29,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-19 18:42:29,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:29,174 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:42:29,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:29,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:29,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:29,202 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:42:29,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:29,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:42:29,202 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 [2020-10-19 18:42:29,203 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-19 18:42:29,218 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 9 states and 11 transitions. Complement of second has 4 states. [2020-10-19 18:42:29,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:29,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:42:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-10-19 18:42:29,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-19 18:42:29,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:29,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2020-10-19 18:42:29,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:29,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 18:42:29,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:29,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2020-10-19 18:42:29,222 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:42:29,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2020-10-19 18:42:29,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:42:29,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:42:29,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:42:29,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:42:29,222 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:29,222 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:29,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:42:29,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:42:29,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:42:29,227 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-10-19 18:42:29,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:42:29,230 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-19 18:42:29,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:42:29,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-19 18:42:29,231 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:42:29,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:42:29,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:42:29,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:42:29,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:42:29,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:42:29,232 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:29,232 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:29,232 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:29,232 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:42:29,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:42:29,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:42:29,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:42:29,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:42:29 BoogieIcfgContainer [2020-10-19 18:42:29,240 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:42:29,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:42:29,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:42:29,241 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:42:29,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:42:26" (3/4) ... [2020-10-19 18:42:29,245 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:42:29,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:42:29,247 INFO L168 Benchmark]: Toolchain (without parser) took 3799.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 961.3 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:29,248 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:42:29,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.75 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:29,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.05 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:42:29,250 INFO L168 Benchmark]: Boogie Preprocessor took 77.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -163.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:29,251 INFO L168 Benchmark]: RCFGBuilder took 239.22 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:29,252 INFO L168 Benchmark]: BuchiAutomizer took 3201.72 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -53.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:29,253 INFO L168 Benchmark]: Witness Printer took 4.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:29,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 233.75 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.05 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -163.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 239.22 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3201.72 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -53.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. 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 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 23 SDslu, 6 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax168 hnf99 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...