./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/terminator_02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/loops/terminator_02-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c39fd0351744516d27a824f9d04afb4690ded14c ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 07:04:34,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:04:34,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:04:34,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:04:34,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:04:34,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:04:34,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:04:34,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:04:34,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:04:34,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:04:34,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:04:34,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:04:34,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:04:34,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:04:34,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:04:34,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:04:34,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:04:34,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:04:34,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:04:34,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:04:34,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:04:34,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:04:34,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:04:34,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:04:34,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:04:34,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:04:34,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:04:34,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:04:34,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:04:34,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:04:34,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:04:34,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:04:34,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:04:34,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:04:34,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:04:34,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:04:34,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:04:34,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:04:34,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:04:34,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:04:34,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:04:34,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:04:34,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:04:34,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:04:34,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:04:34,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:04:34,350 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:04:34,350 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:04:34,350 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:04:34,351 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:04:34,351 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:04:34,351 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:04:34,352 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:04:34,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:04:34,353 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:04:34,353 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:04:34,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:04:34,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:04:34,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:04:34,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:04:34,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:04:34,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:04:34,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:04:34,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:04:34,355 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:04:34,355 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:04:34,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:04:34,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:04:34,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:04:34,356 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:04:34,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:04:34,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:04:34,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:04:34,357 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:04:34,358 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:04:34,359 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c39fd0351744516d27a824f9d04afb4690ded14c [2020-10-20 07:04:34,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:04:34,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:04:34,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:04:34,588 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:04:34,588 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:04:34,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-2.c [2020-10-20 07:04:34,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43018d0e2/f97a7120bc9540c59ce1bfd17c1b3fbc/FLAGf6e4db008 [2020-10-20 07:04:35,096 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:04:35,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-2.c [2020-10-20 07:04:35,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43018d0e2/f97a7120bc9540c59ce1bfd17c1b3fbc/FLAGf6e4db008 [2020-10-20 07:04:35,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43018d0e2/f97a7120bc9540c59ce1bfd17c1b3fbc [2020-10-20 07:04:35,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:04:35,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:04:35,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:04:35,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:04:35,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:04:35,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e38263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35, skipping insertion in model container [2020-10-20 07:04:35,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:04:35,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:04:35,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:04:35,813 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:04:35,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:04:35,845 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:04:35,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35 WrapperNode [2020-10-20 07:04:35,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:04:35,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:04:35,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:04:35,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:04:35,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:04:35,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:04:35,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:04:35,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:04:35,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (1/1) ... [2020-10-20 07:04:35,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:04:35,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:04:35,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:04:35,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:04:35,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (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 [2020-10-20 07:04:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:04:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:04:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:04:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:04:36,191 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:04:36,192 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 07:04:36,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:36 BoogieIcfgContainer [2020-10-20 07:04:36,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:04:36,195 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:04:36,196 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:04:36,199 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:04:36,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:36,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:04:35" (1/3) ... [2020-10-20 07:04:36,202 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5167a6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:04:36, skipping insertion in model container [2020-10-20 07:04:36,202 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:36,202 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:35" (2/3) ... [2020-10-20 07:04:36,203 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5167a6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:04:36, skipping insertion in model container [2020-10-20 07:04:36,203 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:36,203 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:36" (3/3) ... [2020-10-20 07:04:36,205 INFO L373 chiAutomizerObserver]: Analyzing ICFG terminator_02-2.c [2020-10-20 07:04:36,290 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:04:36,290 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:04:36,290 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:04:36,290 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:04:36,291 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:04:36,291 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:04:36,291 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:04:36,291 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:04:36,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 07:04:36,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:36,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:36,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:36,340 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 07:04:36,340 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:36,341 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:04:36,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 07:04:36,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:36,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:36,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:36,343 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 07:04:36,343 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:36,349 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 7#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 11#L22true assume !!(main_~x~0 > -100); 12#L23true assume !!(main_~x~0 < 200); 14#L24true assume !!(main_~z~0 > 100); 18#L25true assume !!(main_~z~0 < 200); 3#L29-2true [2020-10-20 07:04:36,350 INFO L796 eck$LassoCheckResult]: Loop: 3#L29-2true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 5#L29true assume 0 != main_~tmp~0 % 256;main_#t~post10 := main_~x~0;main_~x~0 := 1 + main_#t~post10;havoc main_#t~post10; 3#L29-2true [2020-10-20 07:04:36,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:36,355 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2020-10-20 07:04:36,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:36,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265842685] [2020-10-20 07:04:36,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,454 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,495 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:36,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:36,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 1 times [2020-10-20 07:04:36,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:36,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5488189] [2020-10-20 07:04:36,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,510 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,512 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:36,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:36,514 INFO L82 PathProgramCache]: Analyzing trace with hash 179567792, now seen corresponding path program 1 times [2020-10-20 07:04:36,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:36,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155232176] [2020-10-20 07:04:36,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,560 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:36,640 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:36,641 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:36,641 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:36,641 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:36,641 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:36,641 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,642 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:36,642 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:36,642 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2020-10-20 07:04:36,642 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:36,643 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:36,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,795 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:36,796 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) [2020-10-20 07:04:36,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:36,803 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 [2020-10-20 07:04:36,828 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:36,828 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet9=253, ULTIMATE.start_main_~tmp~0=253} Honda state: {ULTIMATE.start_main_#t~nondet9=253, ULTIMATE.start_main_~tmp~0=253} 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) [2020-10-20 07:04:36,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:36,865 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 [2020-10-20 07:04:36,869 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:36,869 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post10=0} Honda state: {ULTIMATE.start_main_#t~post10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:36,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:36,911 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:36,911 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:36,939 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:36,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:37,002 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:04:37,004 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:37,005 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:37,005 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:37,005 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:37,005 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:37,005 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:37,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:37,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:37,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2020-10-20 07:04:37,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:37,006 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:37,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,149 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:37,154 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:37,160 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 [2020-10-20 07:04:37,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:37,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:37,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:37,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:37,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:37,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:37,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:37,173 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) [2020-10-20 07:04:37,209 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:37,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:37,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:37,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:37,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:37,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:37,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:37,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:37,223 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 [2020-10-20 07:04:37,250 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 [2020-10-20 07:04:37,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:37,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:37,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:37,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:37,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:37,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:37,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:37,258 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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:37,302 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 [2020-10-20 07:04:37,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:37,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:37,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:37,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:37,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:37,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:37,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:37,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:37,333 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:04:37,334 INFO L444 ModelExtractionUtils]: 0 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:37,346 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:37,347 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:04:37,347 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:37,348 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:37,374 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:04:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:37,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:37,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:37,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:37,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:37,474 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 [2020-10-20 07:04:37,475 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-10-20 07:04:37,537 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 45 states and 58 transitions. Complement of second has 8 states. [2020-10-20 07:04:37,538 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 [2020-10-20 07:04:37,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:37,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-10-20 07:04:37,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-20 07:04:37,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:37,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-20 07:04:37,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:37,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-20 07:04:37,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:37,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2020-10-20 07:04:37,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:37,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 12 states and 15 transitions. [2020-10-20 07:04:37,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-20 07:04:37,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-20 07:04:37,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-10-20 07:04:37,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:37,556 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-20 07:04:37,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-10-20 07:04:37,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-20 07:04:37,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 07:04:37,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-10-20 07:04:37,584 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-20 07:04:37,584 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-20 07:04:37,584 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:04:37,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2020-10-20 07:04:37,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:37,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:37,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:37,586 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:37,586 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:37,587 INFO L794 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 113#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 114#L22 assume !!(main_~x~0 > -100); 121#L23 assume !!(main_~x~0 < 200); 122#L24 assume !!(main_~z~0 > 100); 123#L25 assume !!(main_~z~0 < 200); 124#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 120#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 116#L29-2 [2020-10-20 07:04:37,587 INFO L796 eck$LassoCheckResult]: Loop: 116#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 117#L29 assume 0 != main_~tmp~0 % 256;main_#t~post10 := main_~x~0;main_~x~0 := 1 + main_#t~post10;havoc main_#t~post10; 116#L29-2 [2020-10-20 07:04:37,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:37,587 INFO L82 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 1 times [2020-10-20 07:04:37,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:37,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533093698] [2020-10-20 07:04:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:37,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:37,620 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:37,625 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:37,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:37,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 2 times [2020-10-20 07:04:37,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:37,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773232991] [2020-10-20 07:04:37,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:37,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:37,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:37,675 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:37,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:37,679 INFO L82 PathProgramCache]: Analyzing trace with hash 765959189, now seen corresponding path program 1 times [2020-10-20 07:04:37,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:37,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592426618] [2020-10-20 07:04:37,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:37,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:37,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:37,742 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:37,767 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:37,767 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:37,767 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:37,768 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:37,768 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:37,768 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:37,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:37,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:37,769 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2020-10-20 07:04:37,769 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:37,769 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:37,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,856 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:37,856 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 [2020-10-20 07:04:37,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:37,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:37,864 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:37,864 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:37,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:37,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:37,910 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:37,910 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post10=0} Honda state: {ULTIMATE.start_main_#t~post10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-10-20 07:04:37,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:37,963 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 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) [2020-10-20 07:04:38,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:38,011 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,052 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:04:38,054 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:38,055 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:38,055 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:38,055 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:38,055 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:38,055 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,055 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:38,055 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:38,055 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2020-10-20 07:04:38,055 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:38,056 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:38,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,180 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:38,180 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 07:04:38,185 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:38,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:38,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:38,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:38,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:38,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:38,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:38,191 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 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 [2020-10-20 07:04:38,229 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 [2020-10-20 07:04:38,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:38,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:38,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:38,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:38,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:38,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:38,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:38,234 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:38,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:38,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:38,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:38,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:38,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:38,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:38,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:38,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,286 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:38,289 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:04:38,289 INFO L444 ModelExtractionUtils]: 0 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:38,293 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:38,294 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:04:38,294 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:38,294 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,331 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:04:38,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:38,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:38,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:38,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:38,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:38,378 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 [2020-10-20 07:04:38,379 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-20 07:04:38,396 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 16 states and 21 transitions. Complement of second has 5 states. [2020-10-20 07:04:38,409 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 [2020-10-20 07:04:38,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:38,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-20 07:04:38,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-20 07:04:38,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:38,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 07:04:38,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:38,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-20 07:04:38,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:38,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2020-10-20 07:04:38,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:38,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2020-10-20 07:04:38,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-20 07:04:38,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-20 07:04:38,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2020-10-20 07:04:38,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:38,424 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-20 07:04:38,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2020-10-20 07:04:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-20 07:04:38,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 07:04:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-10-20 07:04:38,431 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-20 07:04:38,431 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-20 07:04:38,431 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 07:04:38,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2020-10-20 07:04:38,436 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:38,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:38,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:38,438 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:38,438 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:38,439 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 192#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 193#L22 assume !!(main_~x~0 > -100); 200#L23 assume !!(main_~x~0 < 200); 201#L24 assume !!(main_~z~0 > 100); 203#L25 assume !!(main_~z~0 < 200); 204#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 199#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 202#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 205#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 195#L29-2 [2020-10-20 07:04:38,439 INFO L796 eck$LassoCheckResult]: Loop: 195#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 196#L29 assume 0 != main_~tmp~0 % 256;main_#t~post10 := main_~x~0;main_~x~0 := 1 + main_#t~post10;havoc main_#t~post10; 195#L29-2 [2020-10-20 07:04:38,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:38,440 INFO L82 PathProgramCache]: Analyzing trace with hash 765959191, now seen corresponding path program 2 times [2020-10-20 07:04:38,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:38,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132289237] [2020-10-20 07:04:38,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:38,487 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:38,520 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:38,528 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:38,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:38,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 3 times [2020-10-20 07:04:38,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:38,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831070210] [2020-10-20 07:04:38,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:38,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:38,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:38,544 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:38,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:38,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1647375930, now seen corresponding path program 2 times [2020-10-20 07:04:38,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:38,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662094026] [2020-10-20 07:04:38,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:38,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:38,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:38,615 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:38,645 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:38,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:38,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:38,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:38,646 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:38,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:38,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:38,646 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2020-10-20 07:04:38,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:38,647 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:38,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,741 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:38,741 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-20 07:04:38,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:38,747 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,752 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:38,752 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-10-20 07:04:38,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:38,796 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) [2020-10-20 07:04:38,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:38,835 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,862 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:04:38,863 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:38,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:38,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:38,864 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:38,864 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:38,864 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:38,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:38,864 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2020-10-20 07:04:38,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:38,864 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:38,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:38,974 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:38,974 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-20 07:04:38,984 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 [2020-10-20 07:04:38,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:38,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:38,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:38,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:38,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:38,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:38,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:38,994 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:39,036 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 [2020-10-20 07:04:39,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:39,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:39,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:39,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:39,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:39,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:39,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,045 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:39,049 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:04:39,049 INFO L444 ModelExtractionUtils]: 0 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 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,054 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:39,054 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:04:39,054 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:39,054 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2020-10-20 07:04:39,074 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:04:39,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:39,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:39,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:39,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:39,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:39,124 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 [2020-10-20 07:04:39,124 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-20 07:04:39,137 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 18 states and 25 transitions. Complement of second has 5 states. [2020-10-20 07:04:39,138 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 [2020-10-20 07:04:39,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:39,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-20 07:04:39,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 07:04:39,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:39,139 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 07:04:39,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:39,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:39,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:39,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:39,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:39,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:39,212 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 07:04:39,212 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-20 07:04:39,224 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 18 states and 25 transitions. Complement of second has 5 states. [2020-10-20 07:04:39,224 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 [2020-10-20 07:04:39,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:39,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-20 07:04:39,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 07:04:39,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:39,226 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 07:04:39,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:39,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:39,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:39,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:39,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:39,279 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 07:04:39,279 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-20 07:04:39,295 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 4 states. [2020-10-20 07:04:39,296 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 [2020-10-20 07:04:39,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-10-20 07:04:39,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 07:04:39,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:39,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2020-10-20 07:04:39,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:39,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2020-10-20 07:04:39,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:39,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2020-10-20 07:04:39,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 07:04:39,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 24 transitions. [2020-10-20 07:04:39,302 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-20 07:04:39,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-20 07:04:39,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2020-10-20 07:04:39,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:39,302 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-10-20 07:04:39,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2020-10-20 07:04:39,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 10. [2020-10-20 07:04:39,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 07:04:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-10-20 07:04:39,304 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-10-20 07:04:39,304 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-10-20 07:04:39,304 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 07:04:39,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2020-10-20 07:04:39,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 07:04:39,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:39,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:39,305 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 07:04:39,306 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:39,306 INFO L794 eck$LassoCheckResult]: Stem: 406#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 404#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 405#L22 assume !!(main_~x~0 > -100); 411#L23 assume !!(main_~x~0 < 200); 412#L24 assume !!(main_~z~0 > 100); 413#L25 assume !!(main_~z~0 < 200); 407#L29-2 [2020-10-20 07:04:39,306 INFO L796 eck$LassoCheckResult]: Loop: 407#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 408#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 407#L29-2 [2020-10-20 07:04:39,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:39,306 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 2 times [2020-10-20 07:04:39,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:39,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013320567] [2020-10-20 07:04:39,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:39,314 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:39,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:39,323 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:39,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:39,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2020-10-20 07:04:39,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:39,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042451900] [2020-10-20 07:04:39,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:39,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:39,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:39,331 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:39,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:39,332 INFO L82 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 3 times [2020-10-20 07:04:39,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:39,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905612832] [2020-10-20 07:04:39,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:39,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:39,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:39,349 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:39,379 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:39,379 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:39,379 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:39,379 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:39,379 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:39,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,380 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:39,380 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:39,380 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2020-10-20 07:04:39,380 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:39,380 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:39,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,489 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:39,490 INFO L404 LassoAnalysis]: Checking for nontermination... 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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:39,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:39,509 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:39,509 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post12=0} Honda state: {ULTIMATE.start_main_#t~post12=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:39,540 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2020-10-20 07:04:39,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:39,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:39,610 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:04:39,612 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:39,612 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:39,612 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:39,612 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:39,612 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:39,613 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,613 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:39,613 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:39,613 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2020-10-20 07:04:39,613 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:39,613 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:39,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:39,715 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:39,716 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 07:04:39,727 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 [2020-10-20 07:04:39,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:39,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:39,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:39,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:39,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:39,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:39,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,733 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:39,766 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 [2020-10-20 07:04:39,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:39,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:39,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:39,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:39,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:39,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:39,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,773 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 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,799 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 [2020-10-20 07:04:39,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:39,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:39,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:39,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:39,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:39,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:39,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:39,805 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:39,814 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-10-20 07:04:39,814 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:39,817 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:39,817 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:04:39,818 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:39,818 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:39,851 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:04:39,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:39,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:39,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:39,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:39,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:39,911 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 [2020-10-20 07:04:39,911 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-10-20 07:04:39,925 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 16 states and 22 transitions. Complement of second has 4 states. [2020-10-20 07:04:39,925 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 [2020-10-20 07:04:39,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:39,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-10-20 07:04:39,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-20 07:04:39,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:39,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-20 07:04:39,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:39,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-20 07:04:39,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:39,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2020-10-20 07:04:39,929 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:04:39,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-10-20 07:04:39,929 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:04:39,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:04:39,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:04:39,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:04:39,929 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:04:39,929 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:04:39,930 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:04:39,930 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 07:04:39,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:04:39,930 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:04:39,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:04:39,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:04:39 BoogieIcfgContainer [2020-10-20 07:04:39,937 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:04:39,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:04:39,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:04:39,938 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:04:39,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:36" (3/4) ... [2020-10-20 07:04:39,942 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:04:39,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:04:39,945 INFO L168 Benchmark]: Toolchain (without parser) took 4423.93 ms. Allocated memory was 37.2 MB in the beginning and 66.6 MB in the end (delta: 29.4 MB). Free memory was 12.9 MB in the beginning and 38.5 MB in the end (delta: -25.6 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:39,945 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 36.7 MB. Free memory is still 15.7 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 07:04:39,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.02 ms. Allocated memory was 37.2 MB in the beginning and 45.6 MB in the end (delta: 8.4 MB). Free memory was 12.1 MB in the beginning and 28.8 MB in the end (delta: -16.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:39,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 45.6 MB. Free memory was 28.8 MB in the beginning and 27.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:39,948 INFO L168 Benchmark]: Boogie Preprocessor took 22.34 ms. Allocated memory is still 45.6 MB. Free memory was 27.1 MB in the beginning and 25.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:39,949 INFO L168 Benchmark]: RCFGBuilder took 286.78 ms. Allocated memory was 45.6 MB in the beginning and 48.8 MB in the end (delta: 3.1 MB). Free memory was 25.9 MB in the beginning and 28.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:39,950 INFO L168 Benchmark]: BuchiAutomizer took 3741.70 ms. Allocated memory was 48.8 MB in the beginning and 66.6 MB in the end (delta: 17.8 MB). Free memory was 28.2 MB in the beginning and 38.5 MB in the end (delta: -10.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:39,950 INFO L168 Benchmark]: Witness Printer took 4.91 ms. Allocated memory is still 66.6 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 07:04:39,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 36.7 MB. Free memory is still 15.7 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 320.02 ms. Allocated memory was 37.2 MB in the beginning and 45.6 MB in the end (delta: 8.4 MB). Free memory was 12.1 MB in the beginning and 28.8 MB in the end (delta: -16.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 45.6 MB. Free memory was 28.8 MB in the beginning and 27.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 22.34 ms. Allocated memory is still 45.6 MB. Free memory was 27.1 MB in the beginning and 25.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 286.78 ms. Allocated memory was 45.6 MB in the beginning and 48.8 MB in the end (delta: 3.1 MB). Free memory was 25.9 MB in the beginning and 28.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 3741.70 ms. Allocated memory was 48.8 MB in the beginning and 66.6 MB in the end (delta: 17.8 MB). Free memory was 28.2 MB in the beginning and 38.5 MB in the end (delta: -10.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. * Witness Printer took 4.91 ms. Allocated memory is still 66.6 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 58 SDslu, 11 SDs, 0 SdLazy, 43 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div444 bol100 ite100 ukn100 eq150 hnf48 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...