./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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-memory-alloca/Urban-alloca.i -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 5964f352b4fb43ac691f9b95d86e187c9f5cb80a14ac63e8c25af4413cd385ce --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:05:06,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:05:06,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:05:06,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:05:06,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:05:06,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:05:06,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:05:06,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:05:06,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:05:06,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:05:06,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:05:06,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:05:06,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:05:06,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:05:06,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:05:06,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:05:06,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:05:06,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:05:06,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:05:06,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:05:06,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:05:06,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:05:06,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:05:06,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:05:06,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:05:06,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:05:06,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:05:06,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:05:06,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:05:06,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:05:06,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:05:06,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:05:06,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:05:06,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:05:06,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:05:06,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:05:06,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:05:06,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:05:06,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:05:06,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:05:06,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:05:06,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-14 23:05:06,507 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:05:06,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:05:06,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:05:06,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:05:06,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:05:06,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:05:06,509 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:05:06,509 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:05:06,509 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:05:06,510 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:05:06,510 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:05:06,510 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:05:06,510 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:05:06,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:05:06,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:05:06,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:05:06,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:05:06,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:05:06,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:05:06,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:05:06,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:05:06,512 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:05:06,512 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:05:06,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:05:06,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:05:06,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:05:06,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:05:06,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:05:06,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:05:06,514 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:05:06,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5964f352b4fb43ac691f9b95d86e187c9f5cb80a14ac63e8c25af4413cd385ce [2021-12-14 23:05:06,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:05:06,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:05:06,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:05:06,769 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:05:06,770 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:05:06,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2021-12-14 23:05:06,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/191cf635a/73020a66176542ad8afa88a19bd11ac8/FLAG25075871d [2021-12-14 23:05:07,306 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:05:07,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2021-12-14 23:05:07,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/191cf635a/73020a66176542ad8afa88a19bd11ac8/FLAG25075871d [2021-12-14 23:05:07,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/191cf635a/73020a66176542ad8afa88a19bd11ac8 [2021-12-14 23:05:07,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:05:07,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:05:07,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:05:07,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:05:07,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:05:07,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:07" (1/1) ... [2021-12-14 23:05:07,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af0c28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:07, skipping insertion in model container [2021-12-14 23:05:07,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:07" (1/1) ... [2021-12-14 23:05:07,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:05:07,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:05:07,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:05:07,983 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:05:08,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:05:08,028 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:05:08,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08 WrapperNode [2021-12-14 23:05:08,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:05:08,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:05:08,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:05:08,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:05:08,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,061 INFO L137 Inliner]: procedures = 110, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-12-14 23:05:08,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:05:08,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:05:08,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:05:08,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:05:08,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:05:08,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:05:08,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:05:08,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:05:08,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (1/1) ... [2021-12-14 23:05:08,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:08,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:08,107 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) [2021-12-14 23:05:08,109 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 [2021-12-14 23:05:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 23:05:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 23:05:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 23:05:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 23:05:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:05:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:05:08,257 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:05:08,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:05:08,459 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:05:08,464 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:05:08,464 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 23:05:08,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:08 BoogieIcfgContainer [2021-12-14 23:05:08,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:05:08,467 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:05:08,467 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:05:08,470 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:05:08,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:05:08,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:05:07" (1/3) ... [2021-12-14 23:05:08,476 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c5d6e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:05:08, skipping insertion in model container [2021-12-14 23:05:08,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:05:08,476 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:08" (2/3) ... [2021-12-14 23:05:08,476 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c5d6e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:05:08, skipping insertion in model container [2021-12-14 23:05:08,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:05:08,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:08" (3/3) ... [2021-12-14 23:05:08,478 INFO L388 chiAutomizerObserver]: Analyzing ICFG Urban-alloca.i [2021-12-14 23:05:08,529 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:05:08,529 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:05:08,529 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:05:08,529 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:05:08,530 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:05:08,530 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:05:08,530 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:05:08,530 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:05:08,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-12-14 23:05:08,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:08,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:08,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:08,567 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:05:08,567 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:08,567 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:05:08,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-12-14 23:05:08,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:08,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:08,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:08,571 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:05:08,571 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:08,577 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 8#L559-2true [2021-12-14 23:05:08,577 INFO L793 eck$LassoCheckResult]: Loop: 8#L559-2true call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 12#L550-1true assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 10#L550-3true assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 9#L551true assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7#L559true assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 8#L559-2true [2021-12-14 23:05:08,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:08,588 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-14 23:05:08,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:08,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221726231] [2021-12-14 23:05:08,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:08,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:08,689 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:08,720 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:08,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:08,723 INFO L85 PathProgramCache]: Analyzing trace with hash 35409937, now seen corresponding path program 1 times [2021-12-14 23:05:08,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:08,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461353630] [2021-12-14 23:05:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:08,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:08,769 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:08,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:08,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:08,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849423, now seen corresponding path program 1 times [2021-12-14 23:05:08,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:08,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532565779] [2021-12-14 23:05:08,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:08,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:08,842 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:08,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:09,298 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:05:09,299 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:05:09,299 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:05:09,299 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:05:09,299 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:05:09,299 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:09,300 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:05:09,300 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:05:09,300 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration1_Lasso [2021-12-14 23:05:09,300 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:05:09,300 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:05:09,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:09,869 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:05:09,875 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:05:09,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:09,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:09,883 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) [2021-12-14 23:05:09,888 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 [2021-12-14 23:05:09,891 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 [2021-12-14 23:05:09,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:09,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:09,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:09,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:09,914 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:09,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:09,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:09,948 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 [2021-12-14 23:05:09,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:09,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:09,951 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) [2021-12-14 23:05:09,953 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 [2021-12-14 23:05:09,954 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 [2021-12-14 23:05:09,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:09,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:09,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:09,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:09,967 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:09,967 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:09,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:10,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:10,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:10,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:10,011 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) [2021-12-14 23:05:10,014 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 [2021-12-14 23:05:10,015 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 [2021-12-14 23:05:10,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:10,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:10,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:10,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:10,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:10,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:10,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:10,067 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 [2021-12-14 23:05:10,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:10,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:10,068 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) [2021-12-14 23:05:10,069 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 [2021-12-14 23:05:10,070 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 [2021-12-14 23:05:10,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:10,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:10,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:10,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:10,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:10,079 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:10,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:10,088 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:10,103 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 [2021-12-14 23:05:10,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:10,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:10,105 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) [2021-12-14 23:05:10,105 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 [2021-12-14 23:05:10,107 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 [2021-12-14 23:05:10,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:10,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:10,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:10,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:10,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:10,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:10,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:10,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:05:10,157 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-14 23:05:10,157 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-14 23:05:10,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:10,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:10,179 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) [2021-12-14 23:05:10,231 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 [2021-12-14 23:05:10,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:05:10,232 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-14 23:05:10,232 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:05:10,233 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1 Supporting invariants [] [2021-12-14 23:05:10,271 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 [2021-12-14 23:05:10,319 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-14 23:05:10,322 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 [2021-12-14 23:05:10,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:10,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:10,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:10,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-14 23:05:10,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:10,546 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-12-14 23:05:10,547 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2021-12-14 23:05:10,614 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 46 states and 58 transitions. Complement of second has 14 states. [2021-12-14 23:05:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:10,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2021-12-14 23:05:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 22 transitions. [2021-12-14 23:05:10,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 2 letters. Loop has 5 letters. [2021-12-14 23:05:10,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:10,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-14 23:05:10,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:10,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 2 letters. Loop has 10 letters. [2021-12-14 23:05:10,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:10,623 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 58 transitions. [2021-12-14 23:05:10,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:10,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 21 states and 31 transitions. [2021-12-14 23:05:10,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-14 23:05:10,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-14 23:05:10,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 31 transitions. [2021-12-14 23:05:10,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:10,630 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 31 transitions. [2021-12-14 23:05:10,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 31 transitions. [2021-12-14 23:05:10,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2021-12-14 23:05:10,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 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) [2021-12-14 23:05:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2021-12-14 23:05:10,651 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-12-14 23:05:10,651 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-12-14 23:05:10,651 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:05:10,651 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2021-12-14 23:05:10,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:10,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:10,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:10,652 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-14 23:05:10,652 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:10,653 INFO L791 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 164#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 178#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 174#L550-1 assume !main_#t~short6#1; 180#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 169#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 170#L552 [2021-12-14 23:05:10,653 INFO L793 eck$LassoCheckResult]: Loop: 170#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 166#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 172#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 175#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 176#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 170#L552 [2021-12-14 23:05:10,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:10,654 INFO L85 PathProgramCache]: Analyzing trace with hash 889571371, now seen corresponding path program 1 times [2021-12-14 23:05:10,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:10,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668761076] [2021-12-14 23:05:10,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:10,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:10,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:05:10,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668761076] [2021-12-14 23:05:10,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668761076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:05:10,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:05:10,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:05:10,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286804341] [2021-12-14 23:05:10,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:05:10,691 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:05:10,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:10,691 INFO L85 PathProgramCache]: Analyzing trace with hash 51012381, now seen corresponding path program 1 times [2021-12-14 23:05:10,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:10,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937570514] [2021-12-14 23:05:10,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:10,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,702 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,710 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:10,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:05:10,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:05:10,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:05:10,847 INFO L87 Difference]: Start difference. First operand 18 states and 27 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-14 23:05:10,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:05:10,861 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-12-14 23:05:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:05:10,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2021-12-14 23:05:10,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:10,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 24 transitions. [2021-12-14 23:05:10,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-14 23:05:10,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-14 23:05:10,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-12-14 23:05:10,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:10,864 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-14 23:05:10,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-12-14 23:05:10,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-14 23:05:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 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) [2021-12-14 23:05:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-12-14 23:05:10,866 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-14 23:05:10,866 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-14 23:05:10,867 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:05:10,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-12-14 23:05:10,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-14 23:05:10,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:10,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:10,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-14 23:05:10,868 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:10,868 INFO L791 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 209#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 223#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 220#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 225#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 224#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 215#L552 [2021-12-14 23:05:10,868 INFO L793 eck$LassoCheckResult]: Loop: 215#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 211#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 218#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 221#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 214#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 215#L552 [2021-12-14 23:05:10,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2021-12-14 23:05:10,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:10,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492206951] [2021-12-14 23:05:10,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:10,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,880 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,889 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:10,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:10,890 INFO L85 PathProgramCache]: Analyzing trace with hash 51012381, now seen corresponding path program 2 times [2021-12-14 23:05:10,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:10,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108265121] [2021-12-14 23:05:10,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:10,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,898 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:10,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:10,907 INFO L85 PathProgramCache]: Analyzing trace with hash -364197003, now seen corresponding path program 1 times [2021-12-14 23:05:10,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:10,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180798125] [2021-12-14 23:05:10,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:10,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,921 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:10,936 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:11,333 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:05:11,333 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:05:11,333 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:05:11,333 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:05:11,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:05:11,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:05:11,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:05:11,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration3_Lasso [2021-12-14 23:05:11,334 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:05:11,334 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:05:11,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:11,790 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:05:11,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:05:11,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,794 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) [2021-12-14 23:05:11,795 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 [2021-12-14 23:05:11,797 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 [2021-12-14 23:05:11,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:11,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:11,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:11,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,843 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 [2021-12-14 23:05:11,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,846 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) [2021-12-14 23:05:11,854 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 [2021-12-14 23:05:11,854 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 [2021-12-14 23:05:11,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:11,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:11,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:11,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,878 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 [2021-12-14 23:05:11,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,881 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) [2021-12-14 23:05:11,891 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 [2021-12-14 23:05:11,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:11,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:11,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:11,906 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 [2021-12-14 23:05:11,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:11,937 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 [2021-12-14 23:05:11,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:11,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:11,940 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) [2021-12-14 23:05:11,950 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 [2021-12-14 23:05:11,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:11,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:11,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:11,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:11,959 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 [2021-12-14 23:05:11,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:11,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:11,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,000 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 [2021-12-14 23:05:12,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,002 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) [2021-12-14 23:05:12,003 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 [2021-12-14 23:05:12,009 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 [2021-12-14 23:05:12,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,019 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,065 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 [2021-12-14 23:05:12,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,067 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) [2021-12-14 23:05:12,068 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 [2021-12-14 23:05:12,069 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 [2021-12-14 23:05:12,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:12,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:12,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:12,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,099 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 [2021-12-14 23:05:12,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,100 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) [2021-12-14 23:05:12,109 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 [2021-12-14 23:05:12,113 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 [2021-12-14 23:05:12,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:12,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:12,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:12,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,139 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 [2021-12-14 23:05:12,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,142 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) [2021-12-14 23:05:12,142 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 [2021-12-14 23:05:12,144 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 [2021-12-14 23:05:12,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,157 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-14 23:05:12,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,174 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) [2021-12-14 23:05:12,174 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 [2021-12-14 23:05:12,175 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 [2021-12-14 23:05:12,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:12,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,181 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-14 23:05:12,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,182 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-14 23:05:12,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:12,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-14 23:05:12,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,204 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) [2021-12-14 23:05:12,205 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 [2021-12-14 23:05:12,206 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 [2021-12-14 23:05:12,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,214 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,226 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:12,251 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 [2021-12-14 23:05:12,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,252 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2021-12-14 23:05:12,258 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 [2021-12-14 23:05:12,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:12,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:12,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:12,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:12,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:12,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:12,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-14 23:05:12,283 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:05:12,288 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-14 23:05:12,289 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-14 23:05:12,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:12,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,292 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2021-12-14 23:05:12,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-14 23:05:12,300 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:05:12,328 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:05:12,329 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:05:12,329 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_2 Supporting invariants [] [2021-12-14 23:05:12,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:12,367 INFO L297 tatePredicateManager]: 9 out of 11 supporting invariants were superfluous and have been removed [2021-12-14 23:05:12,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:12,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-14 23:05:12,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:12,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-14 23:05:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:12,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-14 23:05:12,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:12,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2021-12-14 23:05:12,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-14 23:05:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:12,560 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-14 23:05:12,561 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-12-14 23:05:12,647 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 49 states and 69 transitions. Complement of second has 10 states. [2021-12-14 23:05:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:12,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-12-14 23:05:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2021-12-14 23:05:12,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 5 letters. [2021-12-14 23:05:12,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:12,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-14 23:05:12,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:12,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 10 letters. [2021-12-14 23:05:12,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:12,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 69 transitions. [2021-12-14 23:05:12,658 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2021-12-14 23:05:12,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 48 states and 68 transitions. [2021-12-14 23:05:12,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-14 23:05:12,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-12-14 23:05:12,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2021-12-14 23:05:12,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:12,660 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-12-14 23:05:12,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2021-12-14 23:05:12,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2021-12-14 23:05:12,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 44 states have internal predecessors, (64), 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) [2021-12-14 23:05:12,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2021-12-14 23:05:12,667 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-12-14 23:05:12,667 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-12-14 23:05:12,667 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-14 23:05:12,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 64 transitions. [2021-12-14 23:05:12,668 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2021-12-14 23:05:12,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:12,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:12,669 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:05:12,669 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1] [2021-12-14 23:05:12,669 INFO L791 eck$LassoCheckResult]: Stem: 387#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 388#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 403#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 416#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 423#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 420#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 417#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 418#L559-2 [2021-12-14 23:05:12,669 INFO L793 eck$LassoCheckResult]: Loop: 418#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 425#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 424#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 393#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 394#L559 assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 419#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 404#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 400#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 401#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 421#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 418#L559-2 [2021-12-14 23:05:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:12,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 2 times [2021-12-14 23:05:12,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:12,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746741685] [2021-12-14 23:05:12,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:12,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:12,684 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:12,693 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:12,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:12,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1870690047, now seen corresponding path program 1 times [2021-12-14 23:05:12,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:12,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843043390] [2021-12-14 23:05:12,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:12,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:12,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:12,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:05:12,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843043390] [2021-12-14 23:05:12,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843043390] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 23:05:12,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547764848] [2021-12-14 23:05:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:12,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 23:05:12,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:12,771 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 23:05:12,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-14 23:05:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:12,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-14 23:05:12,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:12,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-14 23:05:12,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-14 23:05:12,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:12,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 23:05:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:12,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547764848] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 23:05:12,942 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 23:05:12,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2021-12-14 23:05:12,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976820299] [2021-12-14 23:05:12,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 23:05:12,943 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:05:12,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:05:12,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 23:05:12,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-14 23:05:12,944 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. cyclomatic complexity: 24 Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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) [2021-12-14 23:05:13,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:05:13,017 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2021-12-14 23:05:13,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 23:05:13,018 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 85 transitions. [2021-12-14 23:05:13,019 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2021-12-14 23:05:13,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 62 states and 80 transitions. [2021-12-14 23:05:13,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-12-14 23:05:13,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-12-14 23:05:13,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 80 transitions. [2021-12-14 23:05:13,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:13,021 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 80 transitions. [2021-12-14 23:05:13,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 80 transitions. [2021-12-14 23:05:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2021-12-14 23:05:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.34) internal successors, (67), 49 states have internal predecessors, (67), 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) [2021-12-14 23:05:13,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2021-12-14 23:05:13,024 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2021-12-14 23:05:13,024 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2021-12-14 23:05:13,025 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-14 23:05:13,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 67 transitions. [2021-12-14 23:05:13,025 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2021-12-14 23:05:13,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:13,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:13,026 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:05:13,026 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:13,026 INFO L791 eck$LassoCheckResult]: Stem: 570#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 571#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 589#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 598#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 619#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 618#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 599#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 573#L559-2 [2021-12-14 23:05:13,026 INFO L793 eck$LassoCheckResult]: Loop: 573#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 577#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 584#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 585#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 572#L559 assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 573#L559-2 [2021-12-14 23:05:13,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:13,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 3 times [2021-12-14 23:05:13,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:13,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288436294] [2021-12-14 23:05:13,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,087 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:13,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:13,096 INFO L85 PathProgramCache]: Analyzing trace with hash 35409937, now seen corresponding path program 2 times [2021-12-14 23:05:13,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:13,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548317968] [2021-12-14 23:05:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,102 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,107 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:13,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:13,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1594795075, now seen corresponding path program 1 times [2021-12-14 23:05:13,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:13,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953668727] [2021-12-14 23:05:13,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:13,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:13,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:05:13,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953668727] [2021-12-14 23:05:13,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953668727] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 23:05:13,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122011701] [2021-12-14 23:05:13,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 23:05:13,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:13,212 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 23:05:13,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-12-14 23:05:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:13,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-14 23:05:13,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:13,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-14 23:05:13,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2021-12-14 23:05:13,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-14 23:05:13,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-12-14 23:05:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:13,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 23:05:13,432 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_142 (Array Int Int))) (<= 0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base|))) (store .cse0 |c_ULTIMATE.start_main_~x~0#1.offset| (+ (- 1) (select .cse0 |c_ULTIMATE.start_main_~x~0#1.offset|))))) |c_ULTIMATE.start_main_~y~0#1.base| v_ArrVal_142) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) is different from false [2021-12-14 23:05:13,476 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 23:05:13,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 24 [2021-12-14 23:05:13,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2021-12-14 23:05:13,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-14 23:05:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:13,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122011701] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 23:05:13,517 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 23:05:13,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2021-12-14 23:05:13,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255605882] [2021-12-14 23:05:13,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 23:05:13,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:05:13,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 23:05:13,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=4, NotChecked=24, Total=210 [2021-12-14 23:05:13,628 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. cyclomatic complexity: 22 Second operand has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2021-12-14 23:05:13,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:05:13,756 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2021-12-14 23:05:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 23:05:13,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 56 transitions. [2021-12-14 23:05:13,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-14 23:05:13,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 40 states and 50 transitions. [2021-12-14 23:05:13,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-14 23:05:13,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-14 23:05:13,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 50 transitions. [2021-12-14 23:05:13,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:13,759 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-14 23:05:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 50 transitions. [2021-12-14 23:05:13,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-14 23:05:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 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) [2021-12-14 23:05:13,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2021-12-14 23:05:13,761 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-14 23:05:13,761 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-14 23:05:13,761 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-14 23:05:13,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2021-12-14 23:05:13,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-14 23:05:13,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:13,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:13,762 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:05:13,762 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:13,762 INFO L791 eck$LassoCheckResult]: Stem: 757#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 758#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 774#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 782#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 786#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 785#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 784#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 776#L559-2 [2021-12-14 23:05:13,762 INFO L793 eck$LassoCheckResult]: Loop: 776#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 789#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 788#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 767#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 768#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 776#L559-2 [2021-12-14 23:05:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:13,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849169, now seen corresponding path program 1 times [2021-12-14 23:05:13,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:13,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132272268] [2021-12-14 23:05:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,785 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:13,797 INFO L85 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 1 times [2021-12-14 23:05:13,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:13,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565557040] [2021-12-14 23:05:13,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,804 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:13,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:13,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1652053123, now seen corresponding path program 2 times [2021-12-14 23:05:13,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:13,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365628950] [2021-12-14 23:05:13,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:13,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,839 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:13,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:14,237 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:05:14,237 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:05:14,237 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:05:14,237 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:05:14,237 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:05:14,237 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:14,238 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:05:14,238 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:05:14,238 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration6_Lasso [2021-12-14 23:05:14,238 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:05:14,238 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:05:14,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:14,657 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:05:14,657 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:05:14,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:14,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:14,692 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2021-12-14 23:05:14,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-14 23:05:14,696 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 [2021-12-14 23:05:14,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:14,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:14,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:14,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:14,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:14,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:14,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:14,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:14,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:14,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:14,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:14,723 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2021-12-14 23:05:14,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-14 23:05:14,725 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 [2021-12-14 23:05:14,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:14,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:14,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:14,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:14,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:14,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:14,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:14,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:14,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:14,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:14,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:14,753 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2021-12-14 23:05:14,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-14 23:05:14,757 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 [2021-12-14 23:05:14,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:14,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:14,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:14,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:14,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:14,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:14,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:14,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-14 23:05:14,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:14,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:14,785 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2021-12-14 23:05:14,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-14 23:05:14,787 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 [2021-12-14 23:05:14,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:14,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:14,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:14,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:14,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:14,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:14,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:14,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:14,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:14,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:14,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:14,812 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2021-12-14 23:05:14,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-14 23:05:14,814 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 [2021-12-14 23:05:14,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:14,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:14,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:14,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:14,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:14,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:14,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:14,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:14,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-14 23:05:14,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:14,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:14,879 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2021-12-14 23:05:14,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-14 23:05:14,884 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 [2021-12-14 23:05:14,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:14,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:14,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:14,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:14,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:14,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:14,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:14,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:14,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:14,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:14,935 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2021-12-14 23:05:14,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-14 23:05:14,938 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 [2021-12-14 23:05:14,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:14,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:14,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:14,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:14,950 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:14,950 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:14,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:14,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-14 23:05:14,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:14,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:14,978 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2021-12-14 23:05:14,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-14 23:05:14,981 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 [2021-12-14 23:05:14,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:14,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:14,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:14,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:14,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:14,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:14,991 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:05:15,000 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-14 23:05:15,001 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-14 23:05:15,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:15,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:15,002 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2021-12-14 23:05:15,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-14 23:05:15,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:05:15,055 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:05:15,055 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:05:15,055 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_3 Supporting invariants [] [2021-12-14 23:05:15,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-14 23:05:15,101 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-14 23:05:15,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:15,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:15,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:15,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:15,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 23:05:15,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:15,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:15,212 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-14 23:05:15,212 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-12-14 23:05:15,234 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 64 states and 78 transitions. Complement of second has 9 states. [2021-12-14 23:05:15,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:15,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-12-14 23:05:15,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-14 23:05:15,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-14 23:05:15,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:15,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 5 letters. [2021-12-14 23:05:15,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:15,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 10 letters. [2021-12-14 23:05:15,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:15,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 78 transitions. [2021-12-14 23:05:15,244 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-14 23:05:15,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 54 states and 65 transitions. [2021-12-14 23:05:15,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-14 23:05:15,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-14 23:05:15,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 65 transitions. [2021-12-14 23:05:15,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:15,245 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-14 23:05:15,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 65 transitions. [2021-12-14 23:05:15,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-14 23:05:15,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 53 states have internal predecessors, (65), 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) [2021-12-14 23:05:15,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2021-12-14 23:05:15,248 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-14 23:05:15,248 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-14 23:05:15,248 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-14 23:05:15,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 65 transitions. [2021-12-14 23:05:15,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-14 23:05:15,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:15,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:15,249 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:05:15,249 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:15,249 INFO L791 eck$LassoCheckResult]: Stem: 969#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 970#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 987#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 996#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1015#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1012#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 971#L559 assume !(0 != main_#t~nondet12#1);havoc main_#t~nondet12#1;call main_#t~mem14#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem14#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem14#1;call write~int(main_#t~nondet15#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet15#1; 972#L559-2 [2021-12-14 23:05:15,249 INFO L793 eck$LassoCheckResult]: Loop: 972#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 979#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 982#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 983#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 976#L559 assume !(0 != main_#t~nondet12#1);havoc main_#t~nondet12#1;call main_#t~mem14#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem14#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem14#1;call write~int(main_#t~nondet15#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet15#1; 972#L559-2 [2021-12-14 23:05:15,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:15,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849425, now seen corresponding path program 1 times [2021-12-14 23:05:15,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:15,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903137049] [2021-12-14 23:05:15,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:15,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:15,257 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:15,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:15,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:15,264 INFO L85 PathProgramCache]: Analyzing trace with hash 35409939, now seen corresponding path program 1 times [2021-12-14 23:05:15,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:15,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110963786] [2021-12-14 23:05:15,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:15,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:15,270 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:15,274 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:15,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:15,274 INFO L85 PathProgramCache]: Analyzing trace with hash 391181443, now seen corresponding path program 2 times [2021-12-14 23:05:15,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:15,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123717531] [2021-12-14 23:05:15,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:15,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:15,284 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:15,292 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:15,642 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:05:15,642 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:05:15,642 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:05:15,642 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:05:15,642 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:05:15,642 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:15,642 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:05:15,642 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:05:15,643 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration7_Lasso [2021-12-14 23:05:15,643 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:05:15,643 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:05:15,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:15,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:16,133 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:05:16,133 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:05:16,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,136 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2021-12-14 23:05:16,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-14 23:05:16,139 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 [2021-12-14 23:05:16,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:16,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:16,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:16,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:16,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,186 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2021-12-14 23:05:16,192 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 [2021-12-14 23:05:16,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:16,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:16,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-14 23:05:16,214 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:16,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,231 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2021-12-14 23:05:16,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-14 23:05:16,232 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 [2021-12-14 23:05:16,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:16,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:16,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:16,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:16,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,256 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2021-12-14 23:05:16,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-14 23:05:16,258 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 [2021-12-14 23:05:16,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:16,266 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:16,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-14 23:05:16,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,294 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2021-12-14 23:05:16,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-14 23:05:16,297 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 [2021-12-14 23:05:16,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:16,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:16,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:16,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:16,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,331 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2021-12-14 23:05:16,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-14 23:05:16,334 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 [2021-12-14 23:05:16,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:16,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:16,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:16,341 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:16,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,358 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2021-12-14 23:05:16,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-14 23:05:16,360 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 [2021-12-14 23:05:16,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:16,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:16,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:16,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-14 23:05:16,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,392 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2021-12-14 23:05:16,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-14 23:05:16,394 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 [2021-12-14 23:05:16,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:16,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:16,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-14 23:05:16,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,443 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2021-12-14 23:05:16,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-14 23:05:16,444 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 [2021-12-14 23:05:16,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:16,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:16,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-14 23:05:16,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,473 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2021-12-14 23:05:16,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-14 23:05:16,476 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 [2021-12-14 23:05:16,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,486 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:16,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:16,492 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-14 23:05:16,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,509 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2021-12-14 23:05:16,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-14 23:05:16,511 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 [2021-12-14 23:05:16,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:16,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:16,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:16,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,538 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2021-12-14 23:05:16,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-14 23:05:16,541 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 [2021-12-14 23:05:16,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:16,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:16,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:16,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,602 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2021-12-14 23:05:16,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-14 23:05:16,604 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 [2021-12-14 23:05:16,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:16,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:16,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:16,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-14 23:05:16,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,631 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2021-12-14 23:05:16,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-14 23:05:16,633 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 [2021-12-14 23:05:16,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:16,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:16,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:16,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:16,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:16,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:16,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:05:16,664 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-14 23:05:16,664 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-14 23:05:16,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:16,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:16,666 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2021-12-14 23:05:16,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-14 23:05:16,667 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:05:16,674 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:05:16,674 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:05:16,674 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_4) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_4 Supporting invariants [] [2021-12-14 23:05:16,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:16,705 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-14 23:05:16,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:16,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:16,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:16,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-14 23:05:16,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:16,815 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-14 23:05:16,815 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 65 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-14 23:05:16,849 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 65 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 112 states and 133 transitions. Complement of second has 11 states. [2021-12-14 23:05:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:16,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-14 23:05:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2021-12-14 23:05:16,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-14 23:05:16,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:16,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 5 letters. [2021-12-14 23:05:16,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:16,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 10 letters. [2021-12-14 23:05:16,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:16,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 133 transitions. [2021-12-14 23:05:16,852 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-12-14 23:05:16,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 102 states and 122 transitions. [2021-12-14 23:05:16,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-14 23:05:16,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-14 23:05:16,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 122 transitions. [2021-12-14 23:05:16,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:16,853 INFO L681 BuchiCegarLoop]: Abstraction has 102 states and 122 transitions. [2021-12-14 23:05:16,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 122 transitions. [2021-12-14 23:05:16,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 60. [2021-12-14 23:05:16,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 59 states have internal predecessors, (73), 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) [2021-12-14 23:05:16,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 73 transitions. [2021-12-14 23:05:16,856 INFO L704 BuchiCegarLoop]: Abstraction has 60 states and 73 transitions. [2021-12-14 23:05:16,856 INFO L587 BuchiCegarLoop]: Abstraction has 60 states and 73 transitions. [2021-12-14 23:05:16,856 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-14 23:05:16,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 73 transitions. [2021-12-14 23:05:16,857 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-14 23:05:16,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:16,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:16,857 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2021-12-14 23:05:16,857 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:16,857 INFO L791 eck$LassoCheckResult]: Stem: 1247#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1248#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 1265#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1283#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1280#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1281#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1271#L559 assume !(0 != main_#t~nondet12#1);havoc main_#t~nondet12#1;call main_#t~mem14#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem14#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem14#1;call write~int(main_#t~nondet15#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet15#1; 1277#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1266#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1262#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1263#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1249#L559 [2021-12-14 23:05:16,857 INFO L793 eck$LassoCheckResult]: Loop: 1249#L559 assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 1250#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1254#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1296#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1278#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1249#L559 [2021-12-14 23:05:16,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:16,858 INFO L85 PathProgramCache]: Analyzing trace with hash -125928577, now seen corresponding path program 3 times [2021-12-14 23:05:16,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:16,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150958328] [2021-12-14 23:05:16,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:16,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:16,866 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:16,872 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 58400557, now seen corresponding path program 3 times [2021-12-14 23:05:16,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:16,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021891892] [2021-12-14 23:05:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:16,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:16,877 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:16,881 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:16,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:16,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1691624047, now seen corresponding path program 1 times [2021-12-14 23:05:16,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:16,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666228455] [2021-12-14 23:05:16,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:16,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:16,891 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:16,899 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:17,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:17,439 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:05:17,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:05:17,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:05:17,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:05:17,439 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:05:17,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:17,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:05:17,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:05:17,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration8_Lasso [2021-12-14 23:05:17,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:05:17,440 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:05:17,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:17,857 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:05:17,857 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:05:17,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:17,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:17,858 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2021-12-14 23:05:17,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-14 23:05:17,861 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 [2021-12-14 23:05:17,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:17,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:17,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:17,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:17,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:17,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:17,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:17,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:17,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-14 23:05:17,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:17,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:17,883 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2021-12-14 23:05:17,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-14 23:05:17,885 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 [2021-12-14 23:05:17,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:17,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:17,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:17,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:17,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:17,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:17,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:17,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:17,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-14 23:05:17,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:17,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:17,907 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2021-12-14 23:05:17,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-14 23:05:17,909 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 [2021-12-14 23:05:17,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:17,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:17,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:17,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:17,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:17,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:17,918 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:17,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-12-14 23:05:17,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:17,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:17,934 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2021-12-14 23:05:17,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-14 23:05:17,936 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 [2021-12-14 23:05:17,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:17,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:17,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:17,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:17,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:17,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:17,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:17,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-14 23:05:17,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:17,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:17,970 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2021-12-14 23:05:17,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-14 23:05:17,972 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 [2021-12-14 23:05:17,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:17,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:17,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:17,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:17,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:17,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:17,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:17,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:17,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-14 23:05:17,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:17,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:17,994 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2021-12-14 23:05:17,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-14 23:05:17,996 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 [2021-12-14 23:05:18,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:18,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:18,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:18,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:18,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:18,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:18,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:18,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-12-14 23:05:18,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:18,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:18,047 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2021-12-14 23:05:18,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-14 23:05:18,049 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 [2021-12-14 23:05:18,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:18,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:18,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:18,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:18,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:18,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:18,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:18,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-12-14 23:05:18,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:18,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:18,075 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2021-12-14 23:05:18,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-14 23:05:18,077 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 [2021-12-14 23:05:18,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:18,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:18,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:18,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:18,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:18,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:18,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:18,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-12-14 23:05:18,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:18,105 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2021-12-14 23:05:18,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-14 23:05:18,107 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 [2021-12-14 23:05:18,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:18,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:18,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:18,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:18,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:18,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:18,117 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:05:18,120 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-14 23:05:18,120 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-12-14 23:05:18,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:18,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:18,121 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2021-12-14 23:05:18,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-14 23:05:18,123 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:05:18,128 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:05:18,129 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:05:18,129 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_5) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_5 Supporting invariants [] [2021-12-14 23:05:18,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-12-14 23:05:18,162 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-14 23:05:18,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:18,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:18,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:18,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 23:05:18,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:18,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-14 23:05:18,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:18,250 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-14 23:05:18,250 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-14 23:05:18,271 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 101 states and 120 transitions. Complement of second has 7 states. [2021-12-14 23:05:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-14 23:05:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-14 23:05:18,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-14 23:05:18,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:18,272 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-14 23:05:18,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:18,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:18,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:18,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 23:05:18,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:18,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-14 23:05:18,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:18,363 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-14 23:05:18,363 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-14 23:05:18,385 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 101 states and 120 transitions. Complement of second has 7 states. [2021-12-14 23:05:18,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:18,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-14 23:05:18,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-14 23:05:18,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-14 23:05:18,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:18,387 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-14 23:05:18,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:18,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:18,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:18,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 23:05:18,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:18,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-14 23:05:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:18,470 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 3 loop predicates [2021-12-14 23:05:18,470 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-14 23:05:18,495 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 83 states and 97 transitions. Complement of second has 6 states. [2021-12-14 23:05:18,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:18,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-14 23:05:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-12-14 23:05:18,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-14 23:05:18,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:18,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 5 letters. [2021-12-14 23:05:18,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:18,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 10 letters. [2021-12-14 23:05:18,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:18,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 97 transitions. [2021-12-14 23:05:18,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-14 23:05:18,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 62 states and 74 transitions. [2021-12-14 23:05:18,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-14 23:05:18,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-14 23:05:18,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 74 transitions. [2021-12-14 23:05:18,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:05:18,505 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 74 transitions. [2021-12-14 23:05:18,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 74 transitions. [2021-12-14 23:05:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 55. [2021-12-14 23:05:18,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.2) internal successors, (66), 54 states have internal predecessors, (66), 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) [2021-12-14 23:05:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2021-12-14 23:05:18,508 INFO L704 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-12-14 23:05:18,508 INFO L587 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-12-14 23:05:18,508 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-14 23:05:18,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 66 transitions. [2021-12-14 23:05:18,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-14 23:05:18,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:05:18,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:05:18,509 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 1, 1, 1] [2021-12-14 23:05:18,509 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:05:18,510 INFO L791 eck$LassoCheckResult]: Stem: 1824#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1825#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 1843#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1849#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1848#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1847#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1844#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 1846#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1873#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1872#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1871#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1859#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 1852#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1857#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1855#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1854#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1851#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 1829#L559-2 [2021-12-14 23:05:18,510 INFO L793 eck$LassoCheckResult]: Loop: 1829#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1830#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1856#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1833#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1834#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 1829#L559-2 [2021-12-14 23:05:18,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:18,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1675310445, now seen corresponding path program 1 times [2021-12-14 23:05:18,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:18,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501906685] [2021-12-14 23:05:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:18,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:18,532 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:18,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:18,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:18,541 INFO L85 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 2 times [2021-12-14 23:05:18,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:18,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136848580] [2021-12-14 23:05:18,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:18,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:18,552 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:18,563 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:18,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:18,563 INFO L85 PathProgramCache]: Analyzing trace with hash 143216577, now seen corresponding path program 2 times [2021-12-14 23:05:18,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:05:18,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284935206] [2021-12-14 23:05:18,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:05:18,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:05:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:18,574 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:05:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:05:18,583 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:05:19,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-12-14 23:05:19,286 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:05:19,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:05:19,286 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:05:19,286 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:05:19,286 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:05:19,286 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,286 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:05:19,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:05:19,287 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration9_Lasso [2021-12-14 23:05:19,287 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:05:19,287 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:05:19,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:05:19,694 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:05:19,694 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:05:19,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,695 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2021-12-14 23:05:19,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-14 23:05:19,697 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 [2021-12-14 23:05:19,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:19,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:19,706 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-14 23:05:19,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,722 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2021-12-14 23:05:19,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-14 23:05:19,724 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 [2021-12-14 23:05:19,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:19,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:19,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:19,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-12-14 23:05:19,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,746 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2021-12-14 23:05:19,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-14 23:05:19,748 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 [2021-12-14 23:05:19,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:19,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:19,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:19,755 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:19,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,772 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2021-12-14 23:05:19,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-14 23:05:19,774 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 [2021-12-14 23:05:19,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:19,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:19,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:19,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-14 23:05:19,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,796 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2021-12-14 23:05:19,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-14 23:05:19,798 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 [2021-12-14 23:05:19,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:19,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:19,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:19,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:19,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,822 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2021-12-14 23:05:19,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-14 23:05:19,824 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 [2021-12-14 23:05:19,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:19,831 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:19,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-12-14 23:05:19,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,849 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2021-12-14 23:05:19,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-12-14 23:05:19,851 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 [2021-12-14 23:05:19,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:19,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:19,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:19,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:19,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,874 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2021-12-14 23:05:19,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-12-14 23:05:19,878 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 [2021-12-14 23:05:19,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,885 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:19,885 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:19,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:19,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,903 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2021-12-14 23:05:19,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-12-14 23:05:19,905 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 [2021-12-14 23:05:19,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:19,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:19,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:19,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-12-14 23:05:19,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,928 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2021-12-14 23:05:19,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-12-14 23:05:19,930 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 [2021-12-14 23:05:19,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:19,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:19,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:19,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:19,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,953 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2021-12-14 23:05:19,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-12-14 23:05:19,956 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 [2021-12-14 23:05:19,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:05:19,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:05:19,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:05:19,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:19,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:19,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:19,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:19,980 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2021-12-14 23:05:19,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-12-14 23:05:19,982 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 [2021-12-14 23:05:19,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:19,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:19,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:19,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:19,989 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:19,989 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:19,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:05:20,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:20,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:20,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:20,008 INFO L229 MonitoredProcess]: Starting monitored process 68 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) [2021-12-14 23:05:20,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-12-14 23:05:20,010 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 [2021-12-14 23:05:20,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:05:20,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:05:20,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:05:20,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:05:20,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:05:20,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:05:20,028 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:05:20,032 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-14 23:05:20,032 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-14 23:05:20,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:05:20,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:05:20,033 INFO L229 MonitoredProcess]: Starting monitored process 69 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) [2021-12-14 23:05:20,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-12-14 23:05:20,034 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:05:20,041 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:05:20,041 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:05:20,041 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_6) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_6 Supporting invariants [] [2021-12-14 23:05:20,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-12-14 23:05:20,071 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-14 23:05:20,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:20,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:20,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:20,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 23:05:20,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:20,192 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-14 23:05:20,192 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-14 23:05:20,212 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 63 states and 74 transitions. Complement of second has 9 states. [2021-12-14 23:05:20,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:20,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-14 23:05:20,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-14 23:05:20,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-14 23:05:20,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:20,213 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-14 23:05:20,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:20,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:20,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:20,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 23:05:20,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:20,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:20,347 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-14 23:05:20,348 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-14 23:05:20,365 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 63 states and 74 transitions. Complement of second has 9 states. [2021-12-14 23:05:20,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-14 23:05:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-14 23:05:20,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-14 23:05:20,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:20,374 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-14 23:05:20,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:05:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:20,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:05:20,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:05:20,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 23:05:20,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:05:20,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:05:20,497 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 3 loop predicates [2021-12-14 23:05:20,497 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-14 23:05:20,520 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 72 states and 84 transitions. Complement of second has 8 states. [2021-12-14 23:05:20,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-14 23:05:20,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-14 23:05:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-14 23:05:20,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-14 23:05:20,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:20,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 22 letters. Loop has 5 letters. [2021-12-14 23:05:20,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:20,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 10 letters. [2021-12-14 23:05:20,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:05:20,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 84 transitions. [2021-12-14 23:05:20,523 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:05:20,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 0 states and 0 transitions. [2021-12-14 23:05:20,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-14 23:05:20,523 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-14 23:05:20,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-14 23:05:20,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:05:20,523 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:05:20,524 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:05:20,524 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:05:20,524 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-14 23:05:20,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-14 23:05:20,524 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:05:20,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-14 23:05:20,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:05:20 BoogieIcfgContainer [2021-12-14 23:05:20,529 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:05:20,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:05:20,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:05:20,529 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:05:20,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:08" (3/4) ... [2021-12-14 23:05:20,532 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-14 23:05:20,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:05:20,532 INFO L158 Benchmark]: Toolchain (without parser) took 12883.94ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 83.3MB in the beginning and 113.8MB in the end (delta: -30.4MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2021-12-14 23:05:20,533 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 49.8MB in the beginning and 49.8MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:05:20,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.91ms. Allocated memory is still 115.3MB. Free memory was 83.1MB in the beginning and 86.6MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:05:20,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.03ms. Allocated memory is still 115.3MB. Free memory was 86.6MB in the beginning and 85.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:05:20,533 INFO L158 Benchmark]: Boogie Preprocessor took 18.91ms. Allocated memory is still 115.3MB. Free memory was 85.2MB in the beginning and 83.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:05:20,534 INFO L158 Benchmark]: RCFGBuilder took 383.79ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 73.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 23:05:20,534 INFO L158 Benchmark]: BuchiAutomizer took 12062.25ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 73.5MB in the beginning and 113.8MB in the end (delta: -40.3MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-12-14 23:05:20,534 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 167.8MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:05:20,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 49.8MB in the beginning and 49.8MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.91ms. Allocated memory is still 115.3MB. Free memory was 83.1MB in the beginning and 86.6MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.03ms. Allocated memory is still 115.3MB. Free memory was 86.6MB in the beginning and 85.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.91ms. Allocated memory is still 115.3MB. Free memory was 85.2MB in the beginning and 83.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 383.79ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 73.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 12062.25ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 73.5MB in the beginning and 113.8MB in the end (delta: -40.3MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 167.8MB. Free memory is still 113.8MB. 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 9 terminating modules (3 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 8 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 6 locations. One nondeterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.0s and 10 iterations. TraceHistogramMax:3. Analysis of lassos took 9.9s. Construction of modules took 0.2s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 67 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 60 states and ocurred in iteration 7. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 154 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 24 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 364 IncrementalHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 115 mSDtfsCounter, 364 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital227 mio100 ax108 hnf100 lsp87 ukn63 mio100 lsp39 div100 bol100 ite100 ukn100 eq178 hnf89 smp95 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 5 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-14 23:05:20,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:20,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-12-14 23:05:20,981 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