./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 26d01a9c 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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 08:53:07,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:53:07,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:53:07,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:53:07,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:53:07,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:53:07,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:53:07,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:53:07,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:53:07,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:53:07,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:53:07,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:53:07,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:53:07,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:53:07,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:53:07,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:53:07,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:53:07,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:53:07,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:53:07,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:53:07,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:53:07,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:53:07,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:53:07,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:53:07,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:53:07,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:53:07,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:53:07,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:53:07,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:53:07,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:53:07,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:53:07,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:53:07,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:53:07,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:53:07,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:53:07,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:53:07,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:53:07,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:53:07,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:53:07,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:53:07,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:53:07,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-18 08:53:07,479 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:53:07,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:53:07,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:53:07,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:53:07,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:53:07,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:53:07,486 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:53:07,487 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-18 08:53:07,487 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-18 08:53:07,487 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-18 08:53:07,488 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-18 08:53:07,488 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-18 08:53:07,488 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-18 08:53:07,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:53:07,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:53:07,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:53:07,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:53:07,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-18 08:53:07,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-18 08:53:07,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-18 08:53:07,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:53:07,489 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-18 08:53:07,489 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:53:07,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-18 08:53:07,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:53:07,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:53:07,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:53:07,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:53:07,491 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-18 08:53:07,491 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 [2023-02-18 08:53:07,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:53:07,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:53:07,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:53:07,696 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:53:07,696 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:53:07,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2023-02-18 08:53:08,627 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:53:08,769 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:53:08,770 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2023-02-18 08:53:08,773 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61a1fddd/74112cc5cee544ef8f2ae56dafd85d52/FLAG63bf7bda6 [2023-02-18 08:53:08,785 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61a1fddd/74112cc5cee544ef8f2ae56dafd85d52 [2023-02-18 08:53:08,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:53:08,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:53:08,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:53:08,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:53:08,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:53:08,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3a3576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08, skipping insertion in model container [2023-02-18 08:53:08,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:53:08,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:53:08,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:53:08,895 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:53:08,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:53:08,909 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:53:08,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08 WrapperNode [2023-02-18 08:53:08,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:53:08,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:53:08,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:53:08,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:53:08,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,926 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2023-02-18 08:53:08,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:53:08,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:53:08,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:53:08,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:53:08,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,937 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:53:08,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:53:08,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:53:08,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:53:08,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (1/1) ... [2023-02-18 08:53:08,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:08,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:08,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-18 08:53:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:53:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:53:09,077 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:53:09,079 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:53:09,136 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:53:09,140 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:53:09,140 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 08:53:09,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:09 BoogieIcfgContainer [2023-02-18 08:53:09,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:53:09,142 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-18 08:53:09,142 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-18 08:53:09,145 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-18 08:53:09,146 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:53:09,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.02 08:53:08" (1/3) ... [2023-02-18 08:53:09,146 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7506d748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:53:09, skipping insertion in model container [2023-02-18 08:53:09,146 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:53:09,147 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:08" (2/3) ... [2023-02-18 08:53:09,147 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7506d748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:53:09, skipping insertion in model container [2023-02-18 08:53:09,147 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:53:09,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:09" (3/3) ... [2023-02-18 08:53:09,148 INFO L332 chiAutomizerObserver]: Analyzing ICFG Cairo_step2-1.c [2023-02-18 08:53:09,197 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-18 08:53:09,198 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-18 08:53:09,198 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-18 08:53:09,198 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-18 08:53:09,198 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-18 08:53:09,198 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-18 08:53:09,198 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-18 08:53:09,198 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-18 08:53:09,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:09,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-18 08:53:09,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:53:09,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:53:09,216 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-18 08:53:09,216 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-18 08:53:09,217 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-18 08:53:09,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:09,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-18 08:53:09,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:53:09,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:53:09,218 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-18 08:53:09,218 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-18 08:53:09,223 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L15true assume main_~x~0#1 > 0; 6#L16-2true [2023-02-18 08:53:09,224 INFO L750 eck$LassoCheckResult]: Loop: 6#L16-2true assume !!(0 != main_~x~0#1 && -1 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 2; 6#L16-2true [2023-02-18 08:53:09,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:09,228 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-18 08:53:09,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:09,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132276752] [2023-02-18 08:53:09,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:09,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:09,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:09,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:09,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:09,308 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2023-02-18 08:53:09,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:09,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647471657] [2023-02-18 08:53:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:09,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:09,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:09,336 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2023-02-18 08:53:09,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:53:09,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104144009] [2023-02-18 08:53:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:53:09,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:53:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:09,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:53:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:53:09,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:53:09,371 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:09,371 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:09,371 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:09,371 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:09,371 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:53:09,372 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,372 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:09,372 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:09,372 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Loop [2023-02-18 08:53:09,372 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:09,372 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:09,382 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,389 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,390 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:09,407 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:53:09,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-18 08:53:09,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:09,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,432 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:09,432 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:09,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-18 08:53:09,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:09,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,456 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:09,456 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:09,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-18 08:53:09,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-18 08:53:09,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:09,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-18 08:53:09,502 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:53:09,502 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,527 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:09,527 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=-2}] Lambdas: [2, 15, 1] Nus: [0, 0] [2023-02-18 08:53:09,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,535 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:09,535 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:09,535 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:09,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:09,536 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:53:09,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:09,536 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:09,536 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2023-02-18 08:53:09,536 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:09,536 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:09,538 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,541 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,543 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,544 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,545 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,553 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:09,557 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:53:09,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,558 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-18 08:53:09,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:09,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,582 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:09,582 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:09,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,589 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-18 08:53:09,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:09,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,615 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:09,615 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:09,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,620 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-18 08:53:09,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:09,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,645 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:09,645 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:09,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,652 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-18 08:53:09,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:09,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,673 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:53:09,673 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:53:09,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,678 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-18 08:53:09,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:53:09,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,707 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-18 08:53:09,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:53:09,711 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:53:09,733 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:53:09,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,736 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:53:09,736 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:53:09,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:53:09,737 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:53:09,737 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:53:09,737 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,737 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:53:09,737 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:53:09,737 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2023-02-18 08:53:09,737 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:53:09,737 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:53:09,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,742 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,743 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,743 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:53:09,758 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:53:09,761 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:53:09,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,765 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-18 08:53:09,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-18 08:53:09,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:09,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:09,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:09,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:09,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:53:09,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:53:09,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:09,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,796 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-18 08:53:09,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-18 08:53:09,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:09,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:09,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:09,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:09,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:53:09,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:53:09,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:09,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,842 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-18 08:53:09,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-18 08:53:09,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:09,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:53:09,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:09,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:09,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:09,854 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:53:09,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:53:09,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:09,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,875 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-18 08:53:09,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-18 08:53:09,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:09,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:53:09,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:09,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:53:09,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:09,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:53:09,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:53:09,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:53:09,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:09,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:09,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:09,909 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:09,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-18 08:53:09,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-18 08:53:09,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:53:09,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:53:09,919 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2023-02-18 08:53:09,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:53:09,943 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2023-02-18 08:53:09,944 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2023-02-18 08:53:10,016 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:53:10,075 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2023-02-18 08:53:10,075 INFO L444 ModelExtractionUtils]: 3 out of 19 variables were initially zero. Simplification set additionally 12 variables to zero. [2023-02-18 08:53:10,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:53:10,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:53:10,077 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:53:10,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-18 08:53:10,081 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:53:10,105 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2023-02-18 08:53:10,105 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:53:10,105 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 + 1 >= 0] [2023-02-18 08:53:10,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:10,117 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-18 08:53:10,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:53:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:10,152 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 08:53:10,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:53:10,164 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 08:53:10,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:53:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:53:10,195 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-18 08:53:10,198 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:10,229 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 24 transitions. Complement of second has 5 states. [2023-02-18 08:53:10,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-18 08:53:10,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:53:10,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-18 08:53:10,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-18 08:53:10,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:10,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-18 08:53:10,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:10,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-18 08:53:10,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:53:10,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2023-02-18 08:53:10,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:53:10,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2023-02-18 08:53:10,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-18 08:53:10,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-18 08:53:10,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-18 08:53:10,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-18 08:53:10,244 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:53:10,245 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:53:10,245 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:53:10,245 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-18 08:53:10,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-18 08:53:10,245 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:53:10,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-18 08:53:10,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.02 08:53:10 BoogieIcfgContainer [2023-02-18 08:53:10,253 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-18 08:53:10,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 08:53:10,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 08:53:10,254 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 08:53:10,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:09" (3/4) ... [2023-02-18 08:53:10,258 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 08:53:10,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 08:53:10,259 INFO L158 Benchmark]: Toolchain (without parser) took 1470.38ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 110.7MB in the beginning and 139.1MB in the end (delta: -28.4MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,259 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:10,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 120.84ms. Allocated memory is still 151.0MB. Free memory was 110.7MB in the beginning and 101.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.28ms. Allocated memory is still 151.0MB. Free memory was 101.7MB in the beginning and 100.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,260 INFO L158 Benchmark]: Boogie Preprocessor took 10.92ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:10,262 INFO L158 Benchmark]: RCFGBuilder took 203.32ms. Allocated memory is still 151.0MB. Free memory was 99.3MB in the beginning and 115.7MB in the end (delta: -16.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,262 INFO L158 Benchmark]: BuchiAutomizer took 1111.06ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 115.7MB in the beginning and 140.1MB in the end (delta: -24.4MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-02-18 08:53:10,264 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 182.5MB. Free memory was 140.1MB in the beginning and 139.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:53:10,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 120.84ms. Allocated memory is still 151.0MB. Free memory was 110.7MB in the beginning and 101.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.28ms. Allocated memory is still 151.0MB. Free memory was 101.7MB in the beginning and 100.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.92ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.32ms. Allocated memory is still 151.0MB. Free memory was 99.3MB in the beginning and 115.7MB in the end (delta: -16.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1111.06ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 115.7MB in the beginning and 140.1MB in the end (delta: -24.4MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 182.5MB. Free memory was 140.1MB in the beginning and 139.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq186 hnf96 smp100 dnf270 smp100 tf100 neg89 sie124 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 196ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-18 08:53:10,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-18 08:53:10,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE