./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/invert_string-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loops/invert_string-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3da85103e65fd13a584e838d8b961878044a0a70e09ad1788e3ca53a404f357 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:25:21,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:25:21,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:25:21,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:25:21,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:25:21,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:25:21,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:25:21,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:25:21,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:25:21,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:25:21,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:25:21,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:25:21,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:25:21,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:25:21,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:25:21,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:25:21,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:25:21,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:25:21,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:25:21,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:25:21,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:25:21,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:25:21,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:25:21,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:25:21,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:25:21,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:25:21,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:25:21,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:25:21,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:25:21,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:25:21,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:25:21,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:25:21,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:25:21,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:25:21,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:25:21,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:25:21,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:25:21,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:25:21,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:25:21,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:25:21,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:25:21,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:25:21,596 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:25:21,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:25:21,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:25:21,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:25:21,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:25:21,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:25:21,598 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:25:21,599 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:25:21,599 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:25:21,599 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:25:21,600 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:25:21,600 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:25:21,600 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:25:21,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:25:21,600 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:25:21,600 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:25:21,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:25:21,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:25:21,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:25:21,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:25:21,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:25:21,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:25:21,601 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:25:21,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:25:21,602 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:25:21,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:25:21,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:25:21,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:25:21,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:25:21,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:25:21,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:25:21,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:25:21,604 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:25:21,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3da85103e65fd13a584e838d8b961878044a0a70e09ad1788e3ca53a404f357 [2021-12-14 23:25:21,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:25:21,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:25:21,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:25:21,800 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:25:21,801 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:25:21,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/invert_string-1.c [2021-12-14 23:25:21,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be93fd0ab/1684c6830c6c410e94205fc0802da631/FLAG8b205dad3 [2021-12-14 23:25:22,147 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:25:22,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/invert_string-1.c [2021-12-14 23:25:22,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be93fd0ab/1684c6830c6c410e94205fc0802da631/FLAG8b205dad3 [2021-12-14 23:25:22,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be93fd0ab/1684c6830c6c410e94205fc0802da631 [2021-12-14 23:25:22,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:25:22,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:25:22,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:25:22,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:25:22,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:25:22,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682d7ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22, skipping insertion in model container [2021-12-14 23:25:22,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:25:22,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:25:22,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/invert_string-1.c[352,365] [2021-12-14 23:25:22,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:25:22,754 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:25:22,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/invert_string-1.c[352,365] [2021-12-14 23:25:22,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:25:22,774 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:25:22,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22 WrapperNode [2021-12-14 23:25:22,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:25:22,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:25:22,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:25:22,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:25:22,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,795 INFO L137 Inliner]: procedures = 15, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2021-12-14 23:25:22,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:25:22,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:25:22,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:25:22,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:25:22,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:25:22,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:25:22,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:25:22,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:25:22,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (1/1) ... [2021-12-14 23:25:22,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:22,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:22,837 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 23:25:22,839 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 23:25:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:25:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:25:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 23:25:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 23:25:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:25:22,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:25:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 23:25:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 23:25:22,904 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:25:22,905 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:25:22,989 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:25:22,993 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:25:22,993 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-14 23:25:22,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:22 BoogieIcfgContainer [2021-12-14 23:25:22,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:25:22,995 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:25:22,996 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:25:22,998 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:25:22,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:25:22,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:25:22" (1/3) ... [2021-12-14 23:25:23,000 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35191620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:25:22, skipping insertion in model container [2021-12-14 23:25:23,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:25:23,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:25:22" (2/3) ... [2021-12-14 23:25:23,000 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35191620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:25:23, skipping insertion in model container [2021-12-14 23:25:23,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:25:23,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:22" (3/3) ... [2021-12-14 23:25:23,001 INFO L388 chiAutomizerObserver]: Analyzing ICFG invert_string-1.c [2021-12-14 23:25:23,046 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:25:23,046 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:25:23,046 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:25:23,046 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:25:23,046 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:25:23,046 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:25:23,046 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:25:23,047 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:25:23,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 23:25:23,083 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-12-14 23:25:23,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:23,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:23,087 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-14 23:25:23,087 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:25:23,088 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:25:23,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 23:25:23,089 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-12-14 23:25:23,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:23,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:23,090 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-14 23:25:23,090 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:25:23,094 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;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_#t~mem8#1, main_#t~post9#1, main_#t~post7#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~post13#1, main_#t~post10#1, main_~MAX~0#1, main_~#str1~0#1.base, main_~#str1~0#1.offset, main_~#str2~0#1.base, main_~#str2~0#1.offset, main_~cont~0#1, main_~i~0#1, main_~j~0#1;main_~MAX~0#1 := (if main_#t~nondet4#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet4#1 % 4294967296 % 4294967296 else main_#t~nondet4#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet4#1; 14#L17true assume !!(main_~MAX~0#1 > 0); 15#L17-2true call main_~#str1~0#1.base, main_~#str1~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);call main_~#str2~0#1.base, main_~#str2~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);havoc main_~cont~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~cont~0#1 := 0;main_~i~0#1 := 0; 18#L22-3true [2021-12-14 23:25:23,100 INFO L793 eck$LassoCheckResult]: Loop: 18#L22-3true assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 10#L22-2true main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 18#L22-3true [2021-12-14 23:25:23,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:23,113 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-12-14 23:25:23,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:23,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877049019] [2021-12-14 23:25:23,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:23,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:23,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:23,242 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:23,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2021-12-14 23:25:23,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:23,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761934310] [2021-12-14 23:25:23,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:23,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:23,251 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:23,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:23,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:23,258 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2021-12-14 23:25:23,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:23,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974996480] [2021-12-14 23:25:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:23,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:23,284 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:23,302 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:23,741 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:25:23,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:25:23,742 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:25:23,743 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:25:23,743 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:25:23,743 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:23,743 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:25:23,743 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:25:23,744 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration1_Lasso [2021-12-14 23:25:23,744 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:25:23,744 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:25:23,757 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 23:25:23,761 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 23:25:23,763 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 23:25:23,765 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 23:25:23,768 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 23:25:23,770 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 23:25:23,772 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 23:25:23,774 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 23:25:23,776 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 23:25:23,778 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 23:25:23,970 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 23:25:23,973 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 23:25:23,975 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 23:25:23,979 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 23:25:23,981 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 23:25:23,984 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 23:25:24,275 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:25:24,278 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:25:24,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,283 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 23:25:24,286 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 23:25:24,287 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 23:25:24,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:24,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:24,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:24,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,322 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 23:25:24,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,324 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 23:25:24,324 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 23:25:24,327 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 23:25:24,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:24,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:24,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:24,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-14 23:25:24,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,352 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 23:25:24,353 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 23:25:24,353 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 23:25:24,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:24,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:24,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:24,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-14 23:25:24,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,387 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 23:25:24,388 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 23:25:24,391 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 23:25:24,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:24,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:24,415 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,431 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 23:25:24,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,432 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 23:25:24,432 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 23:25:24,435 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 23:25:24,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:24,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:24,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:24,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-14 23:25:24,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,460 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 23:25:24,460 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 23:25:24,462 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 23:25:24,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:24,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:24,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:24,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-14 23:25:24,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,497 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 23:25:24,506 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 23:25:24,506 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 23:25:24,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:24,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:24,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:24,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,566 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 23:25:24,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,567 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 23:25:24,568 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 23:25:24,569 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 23:25:24,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:24,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:24,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,611 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 23:25:24,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,612 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 23:25:24,613 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 23:25:24,614 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 23:25:24,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:24,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:24,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:24,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-14 23:25:24,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,637 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 23:25:24,640 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 23:25:24,641 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 23:25:24,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:24,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:24,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,673 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 23:25:24,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,674 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 23:25:24,674 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 23:25:24,676 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 23:25:24,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:24,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:24,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-14 23:25:24,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,711 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 23:25:24,712 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 23:25:24,713 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 23:25:24,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:24,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:24,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-14 23:25:24,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,747 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 23:25:24,747 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 23:25:24,750 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 23:25:24,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:24,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:24,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,815 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 23:25:24,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,817 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 23:25:24,823 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 23:25:24,826 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 23:25:24,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:24,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:24,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:24,852 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:24,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,868 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 23:25:24,869 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 23:25:24,870 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 23:25:24,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:24,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:24,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:24,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:24,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,908 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 23:25:24,908 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 23:25:24,910 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 23:25:24,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:24,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:24,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,951 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 23:25:24,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,952 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 23:25:24,953 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 23:25:24,954 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 23:25:24,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:24,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:24,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:24,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:24,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:24,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:24,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:24,996 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 23:25:24,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:24,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:24,997 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 23:25:25,003 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 23:25:25,004 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 23:25:25,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:25,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:25,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:25,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:25,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:25,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:25,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:25,044 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 23:25:25,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:25,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:25,045 INFO L229 MonitoredProcess]: Starting monitored process 20 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 23:25:25,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-14 23:25:25,054 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 23:25:25,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:25,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:25,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:25,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:25,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:25,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:25,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:25,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:25,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:25,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:25,100 INFO L229 MonitoredProcess]: Starting monitored process 21 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 23:25:25,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-14 23:25:25,104 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 23:25:25,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:25,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:25,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:25,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:25,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:25,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:25,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:25,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:25,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:25,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:25,137 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 23:25:25,137 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 23:25:25,139 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 23:25:25,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:25,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:25,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:25,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:25,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:25,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:25,159 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:25,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-14 23:25:25,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:25,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:25,175 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 23:25:25,176 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 23:25:25,177 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 23:25:25,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:25,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:25,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:25,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:25,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:25,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:25,205 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:25:25,267 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-12-14 23:25:25,267 INFO L444 ModelExtractionUtils]: 3 out of 19 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-12-14 23:25:25,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:25,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:25,277 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 23:25:25,327 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:25:25,335 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 23:25:25,345 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-14 23:25:25,345 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:25:25,346 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~#str1~0#1.base)_1) = -1*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~#str1~0#1.base)_1 Supporting invariants [1*ULTIMATE.start_main_~#str1~0#1.offset >= 0] [2021-12-14 23:25:25,375 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 23:25:25,392 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-12-14 23:25:25,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:25,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 23:25:25,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:25,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-14 23:25:25,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:25,485 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 23:25:25,505 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-14 23:25:25,505 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 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 23:25:25,556 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 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) Result 38 states and 55 transitions. Complement of second has 8 states. [2021-12-14 23:25:25,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-14 23:25:25,562 INFO L82 GeneralOperation]: Start removeUnreachable. 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 23:25:25,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2021-12-14 23:25:25,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-14 23:25:25,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:25,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-14 23:25:25,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:25,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-14 23:25:25,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:25,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2021-12-14 23:25:25,570 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-14 23:25:25,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 16 states and 21 transitions. [2021-12-14 23:25:25,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-14 23:25:25,575 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-14 23:25:25,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-12-14 23:25:25,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:25:25,576 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-12-14 23:25:25,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-12-14 23:25:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-12-14 23:25:25,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 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 23:25:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2021-12-14 23:25:25,595 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-12-14 23:25:25,595 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-12-14 23:25:25,595 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:25:25,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2021-12-14 23:25:25,597 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-14 23:25:25,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:25,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:25,597 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-14 23:25:25,597 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:25:25,597 INFO L791 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 153#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_#t~mem8#1, main_#t~post9#1, main_#t~post7#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~post13#1, main_#t~post10#1, main_~MAX~0#1, main_~#str1~0#1.base, main_~#str1~0#1.offset, main_~#str2~0#1.base, main_~#str2~0#1.offset, main_~cont~0#1, main_~i~0#1, main_~j~0#1;main_~MAX~0#1 := (if main_#t~nondet4#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet4#1 % 4294967296 % 4294967296 else main_#t~nondet4#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet4#1; 158#L17 assume !!(main_~MAX~0#1 > 0); 164#L17-2 call main_~#str1~0#1.base, main_~#str1~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);call main_~#str2~0#1.base, main_~#str2~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);havoc main_~cont~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~cont~0#1 := 0;main_~i~0#1 := 0; 165#L22-3 assume !(main_~i~0#1 < main_~MAX~0#1); 156#L22-4 call write~int(0, main_~#str1~0#1.base, main_~#str1~0#1.offset + (main_~MAX~0#1 - 1), 1);main_~j~0#1 := 0;main_~i~0#1 := main_~MAX~0#1 - 1; 157#L29-3 [2021-12-14 23:25:25,598 INFO L793 eck$LassoCheckResult]: Loop: 157#L29-3 assume !!(main_~i~0#1 >= 0);call main_#t~mem8#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset, 1);call write~int(main_#t~mem8#1, main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);havoc main_#t~mem8#1;main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 166#L29-2 main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 157#L29-3 [2021-12-14 23:25:25,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:25,599 INFO L85 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2021-12-14 23:25:25,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:25,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493925144] [2021-12-14 23:25:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:25,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:25,637 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 23:25:25,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:25:25,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493925144] [2021-12-14 23:25:25,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493925144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:25:25,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:25:25,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 23:25:25,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27018858] [2021-12-14 23:25:25,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:25:25,641 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:25:25,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:25,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 1 times [2021-12-14 23:25:25,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:25,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897856159] [2021-12-14 23:25:25,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:25,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:25,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:25,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:25,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:25:25,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 23:25:25,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 23:25:25,736 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 23:25:25,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:25:25,762 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-12-14 23:25:25,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 23:25:25,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 24 transitions. [2021-12-14 23:25:25,764 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-14 23:25:25,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 22 transitions. [2021-12-14 23:25:25,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-14 23:25:25,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-14 23:25:25,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2021-12-14 23:25:25,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:25:25,764 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-12-14 23:25:25,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2021-12-14 23:25:25,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-12-14 23:25:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 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 23:25:25,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-12-14 23:25:25,765 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-14 23:25:25,765 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-14 23:25:25,765 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:25:25,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2021-12-14 23:25:25,766 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-14 23:25:25,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:25,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:25,766 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:25:25,766 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:25:25,766 INFO L791 eck$LassoCheckResult]: Stem: 197#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 198#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_#t~mem8#1, main_#t~post9#1, main_#t~post7#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~post13#1, main_#t~post10#1, main_~MAX~0#1, main_~#str1~0#1.base, main_~#str1~0#1.offset, main_~#str2~0#1.base, main_~#str2~0#1.offset, main_~cont~0#1, main_~i~0#1, main_~j~0#1;main_~MAX~0#1 := (if main_#t~nondet4#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet4#1 % 4294967296 % 4294967296 else main_#t~nondet4#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet4#1; 203#L17 assume !!(main_~MAX~0#1 > 0); 208#L17-2 call main_~#str1~0#1.base, main_~#str1~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);call main_~#str2~0#1.base, main_~#str2~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);havoc main_~cont~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~cont~0#1 := 0;main_~i~0#1 := 0; 209#L22-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 204#L22-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 205#L22-3 assume !(main_~i~0#1 < main_~MAX~0#1); 201#L22-4 call write~int(0, main_~#str1~0#1.base, main_~#str1~0#1.offset + (main_~MAX~0#1 - 1), 1);main_~j~0#1 := 0;main_~i~0#1 := main_~MAX~0#1 - 1; 202#L29-3 [2021-12-14 23:25:25,766 INFO L793 eck$LassoCheckResult]: Loop: 202#L29-3 assume !!(main_~i~0#1 >= 0);call main_#t~mem8#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset, 1);call write~int(main_#t~mem8#1, main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);havoc main_#t~mem8#1;main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 210#L29-2 main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 202#L29-3 [2021-12-14 23:25:25,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:25,767 INFO L85 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2021-12-14 23:25:25,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:25,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292558589] [2021-12-14 23:25:25,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:25,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:25,779 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:25,789 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:25,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:25,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 2 times [2021-12-14 23:25:25,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:25,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992658740] [2021-12-14 23:25:25,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:25,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:25,793 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:25,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:25,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:25,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1899811567, now seen corresponding path program 1 times [2021-12-14 23:25:25,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:25,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494771774] [2021-12-14 23:25:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:25,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:25,808 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:25,823 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:26,245 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:25:26,245 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:25:26,245 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:25:26,245 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:25:26,245 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:25:26,245 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:26,245 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:25:26,246 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:25:26,246 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration3_Lasso [2021-12-14 23:25:26,246 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:25:26,246 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:25:26,248 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 23:25:26,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:25:26,498 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 23:25:26,500 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 23:25:26,502 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 23:25:26,503 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 23:25:26,505 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 23:25:26,506 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 23:25:26,508 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 23:25:26,512 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 23:25:26,514 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 23:25:26,516 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 23:25:26,517 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 23:25:26,519 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 23:25:26,521 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 23:25:26,755 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:25:26,755 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:25:26,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:26,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:26,756 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 23:25:26,760 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 23:25:26,761 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 23:25:26,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:26,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:26,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:26,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:26,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:26,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:26,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:26,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-14 23:25:26,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:26,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:26,800 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 23:25:26,801 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 23:25:26,802 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 23:25:26,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:26,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:26,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:26,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:26,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:26,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:26,829 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:25:26,851 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-12-14 23:25:26,851 INFO L444 ModelExtractionUtils]: 2 out of 25 variables were initially zero. Simplification set additionally 20 variables to zero. [2021-12-14 23:25:26,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:26,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:26,852 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 23:25:26,853 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 23:25:26,854 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:25:26,876 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:25:26,876 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:25:26,876 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~MAX~0#1) = 2*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~MAX~0#1 Supporting invariants [] [2021-12-14 23:25:26,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:26,920 INFO L297 tatePredicateManager]: 13 out of 15 supporting invariants were superfluous and have been removed [2021-12-14 23:25:26,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:26,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 23:25:26,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:27,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 23:25:27,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:27,035 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 23:25:27,035 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-12-14 23:25:27,036 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:25:27,102 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 36 transitions. Complement of second has 11 states. [2021-12-14 23:25:27,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-14 23:25:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:25:27,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2021-12-14 23:25:27,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-14 23:25:27,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:27,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 2 letters. [2021-12-14 23:25:27,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:27,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 8 letters. Loop has 4 letters. [2021-12-14 23:25:27,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:27,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2021-12-14 23:25:27,105 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-14 23:25:27,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 26 states and 32 transitions. [2021-12-14 23:25:27,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-14 23:25:27,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-12-14 23:25:27,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2021-12-14 23:25:27,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:25:27,107 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2021-12-14 23:25:27,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2021-12-14 23:25:27,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2021-12-14 23:25:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 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 23:25:27,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2021-12-14 23:25:27,108 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-12-14 23:25:27,109 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-12-14 23:25:27,109 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-14 23:25:27,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2021-12-14 23:25:27,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-14 23:25:27,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:27,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:27,109 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-12-14 23:25:27,109 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:25:27,109 INFO L791 eck$LassoCheckResult]: Stem: 374#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 375#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_#t~mem8#1, main_#t~post9#1, main_#t~post7#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~post13#1, main_#t~post10#1, main_~MAX~0#1, main_~#str1~0#1.base, main_~#str1~0#1.offset, main_~#str2~0#1.base, main_~#str2~0#1.offset, main_~cont~0#1, main_~i~0#1, main_~j~0#1;main_~MAX~0#1 := (if main_#t~nondet4#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet4#1 % 4294967296 % 4294967296 else main_#t~nondet4#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet4#1; 380#L17 assume !!(main_~MAX~0#1 > 0); 385#L17-2 call main_~#str1~0#1.base, main_~#str1~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);call main_~#str2~0#1.base, main_~#str2~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);havoc main_~cont~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~cont~0#1 := 0;main_~i~0#1 := 0; 386#L22-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 381#L22-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 382#L22-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 392#L22-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 391#L22-3 assume !(main_~i~0#1 < main_~MAX~0#1); 378#L22-4 call write~int(0, main_~#str1~0#1.base, main_~#str1~0#1.offset + (main_~MAX~0#1 - 1), 1);main_~j~0#1 := 0;main_~i~0#1 := main_~MAX~0#1 - 1; 379#L29-3 [2021-12-14 23:25:27,109 INFO L793 eck$LassoCheckResult]: Loop: 379#L29-3 assume !!(main_~i~0#1 >= 0);call main_#t~mem8#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset, 1);call write~int(main_#t~mem8#1, main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);havoc main_#t~mem8#1;main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 387#L29-2 main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 379#L29-3 [2021-12-14 23:25:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:27,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1899756335, now seen corresponding path program 2 times [2021-12-14 23:25:27,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:27,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452398703] [2021-12-14 23:25:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:27,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:27,127 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:27,137 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:27,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:27,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 3 times [2021-12-14 23:25:27,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:27,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840458275] [2021-12-14 23:25:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:27,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:27,141 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:27,144 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:27,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:27,144 INFO L85 PathProgramCache]: Analyzing trace with hash -304736141, now seen corresponding path program 2 times [2021-12-14 23:25:27,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:27,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242165858] [2021-12-14 23:25:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:27,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:27,179 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 23:25:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:27,189 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:27,200 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:27,772 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:25:27,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:25:27,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:25:27,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:25:27,772 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:25:27,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:27,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:25:27,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:25:27,772 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration4_Lasso [2021-12-14 23:25:27,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:25:27,772 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:25:27,774 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 23:25:27,789 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 23:25:27,790 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 23:25:27,792 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 23:25:28,077 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 23:25:28,080 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 23:25:28,081 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 23:25:28,083 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 23:25:28,084 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 23:25:28,086 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 23:25:28,087 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 23:25:28,088 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 23:25:28,091 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 23:25:28,092 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 23:25:28,094 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 23:25:28,357 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:25:28,357 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:25:28,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,358 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 23:25:28,359 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 23:25:28,360 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 23:25:28,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:28,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:28,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:28,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:28,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,398 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 23:25:28,399 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 23:25:28,400 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 23:25:28,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:28,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:28,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:28,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,437 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 23:25:28,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,438 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 23:25:28,439 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 23:25:28,440 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 23:25:28,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-14 23:25:28,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,464 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 23:25:28,464 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 23:25:28,466 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 23:25:28,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-14 23:25:28,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,491 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 23:25:28,492 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 23:25:28,494 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 23:25:28,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,500 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,500 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,518 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 23:25:28,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,519 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 23:25:28,520 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 23:25:28,521 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 23:25:28,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-14 23:25:28,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,546 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 23:25:28,547 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 23:25:28,548 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 23:25:28,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,571 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 23:25:28,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,573 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 23:25:28,575 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 23:25:28,576 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 23:25:28,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,600 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-14 23:25:28,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,616 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 23:25:28,617 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 23:25:28,618 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 23:25:28,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-14 23:25:28,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,642 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 23:25:28,643 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 23:25:28,644 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 23:25:28,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,668 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 23:25:28,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,669 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 23:25:28,670 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 23:25:28,672 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 23:25:28,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,689 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,689 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:28,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,728 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 23:25:28,729 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 23:25:28,731 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 23:25:28,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:28,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:28,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,761 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 23:25:28,762 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 23:25:28,766 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 23:25:28,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:28,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:28,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:28,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:28,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:28,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:28,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:25:28,818 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-14 23:25:28,818 INFO L444 ModelExtractionUtils]: 7 out of 25 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-12-14 23:25:28,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:28,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:28,820 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 23:25:28,820 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 23:25:28,821 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:25:28,827 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:25:28,827 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:25:28,827 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2021-12-14 23:25:28,859 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 23:25:28,892 INFO L297 tatePredicateManager]: 19 out of 19 supporting invariants were superfluous and have been removed [2021-12-14 23:25:28,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:28,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:25:28,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:28,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 23:25:28,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:28,954 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 23:25:28,954 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-14 23:25:28,954 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:25:28,963 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 36 transitions. Complement of second has 7 states. [2021-12-14 23:25:28,964 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 23:25:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:25:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-12-14 23:25:28,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-12-14 23:25:28,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:28,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2021-12-14 23:25:28,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:28,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2021-12-14 23:25:28,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:28,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 36 transitions. [2021-12-14 23:25:28,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:25:28,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 22 states and 28 transitions. [2021-12-14 23:25:28,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-14 23:25:28,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-14 23:25:28,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2021-12-14 23:25:28,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:25:28,966 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-14 23:25:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2021-12-14 23:25:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2021-12-14 23:25:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 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 23:25:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-12-14 23:25:28,967 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-14 23:25:28,968 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-14 23:25:28,968 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-14 23:25:28,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-12-14 23:25:28,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:25:28,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:28,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:28,968 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:25:28,969 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:25:28,969 INFO L791 eck$LassoCheckResult]: Stem: 556#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 557#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_#t~mem8#1, main_#t~post9#1, main_#t~post7#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~post13#1, main_#t~post10#1, main_~MAX~0#1, main_~#str1~0#1.base, main_~#str1~0#1.offset, main_~#str2~0#1.base, main_~#str2~0#1.offset, main_~cont~0#1, main_~i~0#1, main_~j~0#1;main_~MAX~0#1 := (if main_#t~nondet4#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet4#1 % 4294967296 % 4294967296 else main_#t~nondet4#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet4#1; 562#L17 assume !!(main_~MAX~0#1 > 0); 567#L17-2 call main_~#str1~0#1.base, main_~#str1~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);call main_~#str2~0#1.base, main_~#str2~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);havoc main_~cont~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~cont~0#1 := 0;main_~i~0#1 := 0; 568#L22-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 563#L22-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 564#L22-3 assume !(main_~i~0#1 < main_~MAX~0#1); 560#L22-4 call write~int(0, main_~#str1~0#1.base, main_~#str1~0#1.offset + (main_~MAX~0#1 - 1), 1);main_~j~0#1 := 0;main_~i~0#1 := main_~MAX~0#1 - 1; 561#L29-3 assume !(main_~i~0#1 >= 0); 558#L29-4 main_~j~0#1 := main_~MAX~0#1 - 1;main_~i~0#1 := 0; 559#L35-3 [2021-12-14 23:25:28,969 INFO L793 eck$LassoCheckResult]: Loop: 559#L35-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call main_#t~mem11#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);call main_#t~mem12#1 := read~int(main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem11#1 == main_#t~mem12#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 565#L7 assume !(0 == __VERIFIER_assert_~cond#1); 566#L7-2 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem11#1;havoc main_#t~mem12#1;main_#t~post13#1 := main_~j~0#1;main_~j~0#1 := main_#t~post13#1 - 1;havoc main_#t~post13#1; 571#L35-2 main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 559#L35-3 [2021-12-14 23:25:28,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:28,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1899811625, now seen corresponding path program 1 times [2021-12-14 23:25:28,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:28,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143617181] [2021-12-14 23:25:28,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:28,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 23:25:29,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:25:29,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143617181] [2021-12-14 23:25:29,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143617181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:25:29,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:25:29,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 23:25:29,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000464958] [2021-12-14 23:25:29,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:25:29,001 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:25:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:29,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2315850, now seen corresponding path program 1 times [2021-12-14 23:25:29,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:29,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155540051] [2021-12-14 23:25:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:29,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:29,005 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:29,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:29,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:25:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 23:25:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 23:25:29,091 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:25:29,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:25:29,111 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-12-14 23:25:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 23:25:29,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2021-12-14 23:25:29,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:25:29,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 18 transitions. [2021-12-14 23:25:29,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-14 23:25:29,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-14 23:25:29,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 18 transitions. [2021-12-14 23:25:29,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:25:29,115 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-12-14 23:25:29,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 18 transitions. [2021-12-14 23:25:29,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-12-14 23:25:29,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.125) internal successors, (18), 15 states have internal predecessors, (18), 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 23:25:29,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-12-14 23:25:29,116 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-12-14 23:25:29,116 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-12-14 23:25:29,116 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-14 23:25:29,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2021-12-14 23:25:29,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:25:29,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:29,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:29,116 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:25:29,117 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:25:29,117 INFO L791 eck$LassoCheckResult]: Stem: 597#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 598#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_#t~mem8#1, main_#t~post9#1, main_#t~post7#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~post13#1, main_#t~post10#1, main_~MAX~0#1, main_~#str1~0#1.base, main_~#str1~0#1.offset, main_~#str2~0#1.base, main_~#str2~0#1.offset, main_~cont~0#1, main_~i~0#1, main_~j~0#1;main_~MAX~0#1 := (if main_#t~nondet4#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet4#1 % 4294967296 % 4294967296 else main_#t~nondet4#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet4#1; 603#L17 assume !!(main_~MAX~0#1 > 0); 608#L17-2 call main_~#str1~0#1.base, main_~#str1~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);call main_~#str2~0#1.base, main_~#str2~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);havoc main_~cont~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~cont~0#1 := 0;main_~i~0#1 := 0; 609#L22-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 604#L22-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 605#L22-3 assume !(main_~i~0#1 < main_~MAX~0#1); 601#L22-4 call write~int(0, main_~#str1~0#1.base, main_~#str1~0#1.offset + (main_~MAX~0#1 - 1), 1);main_~j~0#1 := 0;main_~i~0#1 := main_~MAX~0#1 - 1; 602#L29-3 assume !!(main_~i~0#1 >= 0);call main_#t~mem8#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset, 1);call write~int(main_#t~mem8#1, main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);havoc main_#t~mem8#1;main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 610#L29-2 main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 611#L29-3 assume !(main_~i~0#1 >= 0); 599#L29-4 main_~j~0#1 := main_~MAX~0#1 - 1;main_~i~0#1 := 0; 600#L35-3 [2021-12-14 23:25:29,117 INFO L793 eck$LassoCheckResult]: Loop: 600#L35-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call main_#t~mem11#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);call main_#t~mem12#1 := read~int(main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem11#1 == main_#t~mem12#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 606#L7 assume !(0 == __VERIFIER_assert_~cond#1); 607#L7-2 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem11#1;havoc main_#t~mem12#1;main_#t~post13#1 := main_~j~0#1;main_~j~0#1 := main_#t~post13#1 - 1;havoc main_#t~post13#1; 612#L35-2 main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 600#L35-3 [2021-12-14 23:25:29,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:29,117 INFO L85 PathProgramCache]: Analyzing trace with hash -357814151, now seen corresponding path program 1 times [2021-12-14 23:25:29,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:29,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281787174] [2021-12-14 23:25:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:29,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:29,125 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:29,133 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:29,133 INFO L85 PathProgramCache]: Analyzing trace with hash 2315850, now seen corresponding path program 2 times [2021-12-14 23:25:29,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:29,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102826484] [2021-12-14 23:25:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:29,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:29,137 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:29,140 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:29,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1607633602, now seen corresponding path program 1 times [2021-12-14 23:25:29,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:29,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53925337] [2021-12-14 23:25:29,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:29,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:29,151 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:29,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:29,203 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 23:25:29,705 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:25:29,705 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:25:29,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:25:29,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:25:29,705 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:25:29,705 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:29,705 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:25:29,705 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:25:29,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration6_Lasso [2021-12-14 23:25:29,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:25:29,705 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:25:29,707 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 23:25:29,709 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 23:25:29,710 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 23:25:29,712 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 23:25:29,713 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 23:25:29,715 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 23:25:29,717 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 23:25:29,718 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 23:25:29,719 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 23:25:29,721 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 23:25:29,723 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 23:25:29,725 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 23:25:30,021 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 23:25:30,022 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 23:25:30,024 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 23:25:30,026 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 23:25:30,267 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:25:30,267 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:25:30,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,268 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 23:25:30,269 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 23:25:30,271 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 23:25:30,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:30,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:30,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:30,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-14 23:25:30,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,307 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 23:25:30,308 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 23:25:30,309 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 23:25:30,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:30,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:30,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:30,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:30,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,338 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 23:25:30,339 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 23:25:30,340 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 23:25:30,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,346 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:30,346 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:30,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,363 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 23:25:30,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,364 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 23:25:30,364 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 23:25:30,366 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 23:25:30,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:30,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:30,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:30,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-14 23:25:30,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,396 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 23:25:30,397 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 23:25:30,398 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 23:25:30,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:30,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:30,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:30,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,420 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 23:25:30,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,421 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 23:25:30,422 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 23:25:30,423 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 23:25:30,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:30,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:30,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,449 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 23:25:30,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,450 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 23:25:30,451 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 23:25:30,453 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 23:25:30,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:30,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:30,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:30,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:30,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,476 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 23:25:30,476 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 23:25:30,477 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 23:25:30,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:30,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:30,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:30,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,498 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 23:25:30,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,499 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 23:25:30,500 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 23:25:30,501 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 23:25:30,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:30,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:30,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:30,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:30,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,523 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 23:25:30,524 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 23:25:30,525 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 23:25:30,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:30,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:30,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:30,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:30,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,549 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 23:25:30,549 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 23:25:30,551 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 23:25:30,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:25:30,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:25:30,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:25:30,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:30,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,582 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 23:25:30,583 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 23:25:30,584 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 23:25:30,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:30,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:30,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,608 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 23:25:30,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,609 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 23:25:30,609 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 23:25:30,611 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 23:25:30,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:30,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:30,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:30,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,634 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 23:25:30,635 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 23:25:30,636 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 23:25:30,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:30,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:30,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,664 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 23:25:30,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,665 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 23:25:30,666 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 23:25:30,667 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 23:25:30,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:30,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:30,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:30,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,691 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 23:25:30,692 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 23:25:30,693 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 23:25:30,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:30,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:30,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:30,716 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 23:25:30,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,717 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 23:25:30,717 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 23:25:30,718 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 23:25:30,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:30,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:30,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:30,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:30,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:30,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:30,736 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:25:30,752 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-14 23:25:30,753 INFO L444 ModelExtractionUtils]: 2 out of 25 variables were initially zero. Simplification set additionally 20 variables to zero. [2021-12-14 23:25:30,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:30,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:30,754 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 23:25:30,754 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 23:25:30,755 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:25:30,761 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:25:30,761 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:25:30,761 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~MAX~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~MAX~0#1 - 2*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-14 23:25:30,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-12-14 23:25:30,807 INFO L297 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2021-12-14 23:25:30,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:30,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:25:30,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:30,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-12-14 23:25:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:30,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:25:30,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:30,994 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 23:25:30,995 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-12-14 23:25:30,995 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 5 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 23:25:31,088 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 5. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 34 states and 39 transitions. Complement of second has 11 states. [2021-12-14 23:25:31,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2021-12-14 23:25:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 23:25:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 26 transitions. [2021-12-14 23:25:31,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 26 transitions. Stem has 12 letters. Loop has 4 letters. [2021-12-14 23:25:31,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:31,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 26 transitions. Stem has 16 letters. Loop has 4 letters. [2021-12-14 23:25:31,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:31,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2021-12-14 23:25:31,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:31,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 39 transitions. [2021-12-14 23:25:31,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:25:31,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 21 states and 23 transitions. [2021-12-14 23:25:31,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-14 23:25:31,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-14 23:25:31,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 23 transitions. [2021-12-14 23:25:31,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:25:31,092 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-12-14 23:25:31,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 23 transitions. [2021-12-14 23:25:31,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2021-12-14 23:25:31,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 17 states have internal predecessors, (20), 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 23:25:31,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-12-14 23:25:31,093 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-12-14 23:25:31,093 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-12-14 23:25:31,093 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-14 23:25:31,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 20 transitions. [2021-12-14 23:25:31,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:25:31,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:31,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:31,094 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:25:31,094 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:25:31,094 INFO L791 eck$LassoCheckResult]: Stem: 817#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 818#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_#t~mem8#1, main_#t~post9#1, main_#t~post7#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~post13#1, main_#t~post10#1, main_~MAX~0#1, main_~#str1~0#1.base, main_~#str1~0#1.offset, main_~#str2~0#1.base, main_~#str2~0#1.offset, main_~cont~0#1, main_~i~0#1, main_~j~0#1;main_~MAX~0#1 := (if main_#t~nondet4#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet4#1 % 4294967296 % 4294967296 else main_#t~nondet4#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet4#1; 825#L17 assume !!(main_~MAX~0#1 > 0); 828#L17-2 call main_~#str1~0#1.base, main_~#str1~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);call main_~#str2~0#1.base, main_~#str2~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);havoc main_~cont~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~cont~0#1 := 0;main_~i~0#1 := 0; 829#L22-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 823#L22-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 824#L22-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 833#L22-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 834#L22-3 assume !(main_~i~0#1 < main_~MAX~0#1); 821#L22-4 call write~int(0, main_~#str1~0#1.base, main_~#str1~0#1.offset + (main_~MAX~0#1 - 1), 1);main_~j~0#1 := 0;main_~i~0#1 := main_~MAX~0#1 - 1; 822#L29-3 assume !!(main_~i~0#1 >= 0);call main_#t~mem8#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset, 1);call write~int(main_#t~mem8#1, main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);havoc main_#t~mem8#1;main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 830#L29-2 main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 831#L29-3 assume !(main_~i~0#1 >= 0); 819#L29-4 main_~j~0#1 := main_~MAX~0#1 - 1;main_~i~0#1 := 0; 820#L35-3 [2021-12-14 23:25:31,094 INFO L793 eck$LassoCheckResult]: Loop: 820#L35-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call main_#t~mem11#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);call main_#t~mem12#1 := read~int(main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem11#1 == main_#t~mem12#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 826#L7 assume !(0 == __VERIFIER_assert_~cond#1); 827#L7-2 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem11#1;havoc main_#t~mem12#1;main_#t~post13#1 := main_~j~0#1;main_~j~0#1 := main_#t~post13#1 - 1;havoc main_#t~post13#1; 832#L35-2 main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 820#L35-3 [2021-12-14 23:25:31,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:31,095 INFO L85 PathProgramCache]: Analyzing trace with hash -793654437, now seen corresponding path program 2 times [2021-12-14 23:25:31,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:31,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272497290] [2021-12-14 23:25:31,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:31,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:25:31,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:25:31,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272497290] [2021-12-14 23:25:31,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272497290] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 23:25:31,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200879343] [2021-12-14 23:25:31,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 23:25:31,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 23:25:31,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:31,135 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 23:25:31,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-12-14 23:25:31,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 23:25:31,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 23:25:31,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:25:31,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:25:31,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 23:25:31,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:25:31,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200879343] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 23:25:31,225 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 23:25:31,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2021-12-14 23:25:31,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196739307] [2021-12-14 23:25:31,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 23:25:31,228 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:25:31,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:31,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2315850, now seen corresponding path program 3 times [2021-12-14 23:25:31,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:31,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992430541] [2021-12-14 23:25:31,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:31,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:31,238 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:31,245 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:31,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:25:31,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 23:25:31,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 23:25:31,336 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 23:25:31,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:25:31,383 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2021-12-14 23:25:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 23:25:31,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 26 transitions. [2021-12-14 23:25:31,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:25:31,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 26 transitions. [2021-12-14 23:25:31,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-14 23:25:31,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-14 23:25:31,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 26 transitions. [2021-12-14 23:25:31,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:25:31,385 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-12-14 23:25:31,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 26 transitions. [2021-12-14 23:25:31,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2021-12-14 23:25:31,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.1) internal successors, (22), 19 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 23:25:31,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-12-14 23:25:31,386 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-12-14 23:25:31,386 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-12-14 23:25:31,386 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-14 23:25:31,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 22 transitions. [2021-12-14 23:25:31,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:25:31,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:25:31,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:25:31,386 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:25:31,386 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:25:31,387 INFO L791 eck$LassoCheckResult]: Stem: 952#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 953#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_#t~mem8#1, main_#t~post9#1, main_#t~post7#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~post13#1, main_#t~post10#1, main_~MAX~0#1, main_~#str1~0#1.base, main_~#str1~0#1.offset, main_~#str2~0#1.base, main_~#str2~0#1.offset, main_~cont~0#1, main_~i~0#1, main_~j~0#1;main_~MAX~0#1 := (if main_#t~nondet4#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet4#1 % 4294967296 % 4294967296 else main_#t~nondet4#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet4#1; 960#L17 assume !!(main_~MAX~0#1 > 0); 963#L17-2 call main_~#str1~0#1.base, main_~#str1~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);call main_~#str2~0#1.base, main_~#str2~0#1.offset := #Ultimate.allocOnStack(main_~MAX~0#1);havoc main_~cont~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~cont~0#1 := 0;main_~i~0#1 := 0; 964#L22-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 958#L22-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 959#L22-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call write~int(main_#t~nondet6#1, main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 969#L22-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 971#L22-3 assume !(main_~i~0#1 < main_~MAX~0#1); 956#L22-4 call write~int(0, main_~#str1~0#1.base, main_~#str1~0#1.offset + (main_~MAX~0#1 - 1), 1);main_~j~0#1 := 0;main_~i~0#1 := main_~MAX~0#1 - 1; 957#L29-3 assume !!(main_~i~0#1 >= 0);call main_#t~mem8#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset, 1);call write~int(main_#t~mem8#1, main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);havoc main_#t~mem8#1;main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 965#L29-2 main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 966#L29-3 assume !!(main_~i~0#1 >= 0);call main_#t~mem8#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset, 1);call write~int(main_#t~mem8#1, main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);havoc main_#t~mem8#1;main_#t~post9#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 967#L29-2 main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 970#L29-3 assume !(main_~i~0#1 >= 0); 954#L29-4 main_~j~0#1 := main_~MAX~0#1 - 1;main_~i~0#1 := 0; 955#L35-3 [2021-12-14 23:25:31,387 INFO L793 eck$LassoCheckResult]: Loop: 955#L35-3 assume !!(main_~i~0#1 < main_~MAX~0#1);call main_#t~mem11#1 := read~int(main_~#str1~0#1.base, main_~#str1~0#1.offset + main_~i~0#1, 1);call main_#t~mem12#1 := read~int(main_~#str2~0#1.base, main_~#str2~0#1.offset + main_~j~0#1, 1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem11#1 == main_#t~mem12#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 961#L7 assume !(0 == __VERIFIER_assert_~cond#1); 962#L7-2 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem11#1;havoc main_#t~mem12#1;main_#t~post13#1 := main_~j~0#1;main_~j~0#1 := main_#t~post13#1 - 1;havoc main_#t~post13#1; 968#L35-2 main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 955#L35-3 [2021-12-14 23:25:31,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1802321405, now seen corresponding path program 3 times [2021-12-14 23:25:31,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:31,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19861589] [2021-12-14 23:25:31,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:31,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:31,406 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:31,418 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:31,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:31,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2315850, now seen corresponding path program 4 times [2021-12-14 23:25:31,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:31,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424987739] [2021-12-14 23:25:31,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:31,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:31,423 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:31,431 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:31,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:31,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1451832902, now seen corresponding path program 2 times [2021-12-14 23:25:31,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:25:31,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75653019] [2021-12-14 23:25:31,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:25:31,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:25:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:31,441 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:25:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:25:31,451 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:25:32,447 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:25:32,447 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:25:32,447 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:25:32,447 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:25:32,447 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:25:32,447 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:32,447 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:25:32,447 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:25:32,447 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration8_Lasso [2021-12-14 23:25:32,447 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:25:32,447 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:25:32,449 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 23:25:32,835 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 23:25:32,841 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 23:25:32,843 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 23:25:32,844 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 23:25:32,845 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 23:25:32,848 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 23:25:32,849 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 23:25:32,850 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 23:25:32,852 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 23:25:32,853 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 23:25:32,854 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 23:25:32,855 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 23:25:32,857 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 23:25:32,858 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 23:25:32,863 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 23:25:33,116 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:25:33,117 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:25:33,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:33,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:33,118 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 23:25:33,119 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 23:25:33,120 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 23:25:33,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:33,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:33,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:33,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:33,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:33,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:33,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:33,143 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 23:25:33,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:33,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:33,144 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 23:25:33,144 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 23:25:33,145 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 23:25:33,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:33,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:33,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:33,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:33,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:33,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:33,154 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:33,169 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 23:25:33,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:33,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:33,170 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 23:25:33,171 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 23:25:33,171 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 23:25:33,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:33,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:33,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:33,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:33,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:33,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:33,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:33,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-12-14 23:25:33,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:33,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:33,198 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 23:25:33,199 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 23:25:33,211 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 23:25:33,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:33,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:33,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:33,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:33,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:33,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:33,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:33,248 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 23:25:33,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:33,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:33,249 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 23:25:33,249 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 23:25:33,250 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 23:25:33,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:33,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:33,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:33,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:33,256 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:33,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:33,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:25:33,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-12-14 23:25:33,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:33,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:33,274 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 23:25:33,274 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 23:25:33,276 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 23:25:33,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:25:33,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:25:33,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:25:33,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:25:33,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:25:33,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:25:33,294 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:25:33,318 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-12-14 23:25:33,318 INFO L444 ModelExtractionUtils]: 4 out of 25 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-12-14 23:25:33,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:25:33,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:25:33,320 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 23:25:33,323 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:25:33,330 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 23:25:33,334 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:25:33,335 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:25:33,335 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#str2~0#1.base)_5, ULTIMATE.start_main_~j~0#1) = 1*v_rep(select #length ULTIMATE.start_main_~#str2~0#1.base)_5 + 2*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2021-12-14 23:25:33,350 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 23:25:33,400 INFO L297 tatePredicateManager]: 29 out of 30 supporting invariants were superfluous and have been removed [2021-12-14 23:25:33,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:25:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:33,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 23:25:33,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:25:33,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 23:25:33,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:25:33,540 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 23:25:33,541 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 23:25:33,541 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 23:25:33,571 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 25 states and 28 transitions. Complement of second has 7 states. [2021-12-14 23:25:33,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-14 23:25:33,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 23:25:33,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-14 23:25:33,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 16 letters. Loop has 4 letters. [2021-12-14 23:25:33,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:33,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 20 letters. Loop has 4 letters. [2021-12-14 23:25:33,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:33,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 16 letters. Loop has 8 letters. [2021-12-14 23:25:33,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:25:33,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 28 transitions. [2021-12-14 23:25:33,580 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:25:33,580 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2021-12-14 23:25:33,580 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-14 23:25:33,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-14 23:25:33,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-14 23:25:33,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:25:33,580 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:25:33,580 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:25:33,580 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:25:33,580 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-14 23:25:33,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-14 23:25:33,580 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:25:33,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-14 23:25:33,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:25:33 BoogieIcfgContainer [2021-12-14 23:25:33,585 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:25:33,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:25:33,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:25:33,585 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:25:33,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:25:22" (3/4) ... [2021-12-14 23:25:33,587 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-14 23:25:33,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:25:33,588 INFO L158 Benchmark]: Toolchain (without parser) took 10992.70ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 57.7MB in the beginning and 42.8MB in the end (delta: 14.9MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2021-12-14 23:25:33,588 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:25:33,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.74ms. Allocated memory is still 88.1MB. Free memory was 57.5MB in the beginning and 65.8MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:25:33,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.28ms. Allocated memory is still 88.1MB. Free memory was 65.8MB in the beginning and 64.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:25:33,588 INFO L158 Benchmark]: Boogie Preprocessor took 19.98ms. Allocated memory is still 88.1MB. Free memory was 64.0MB in the beginning and 62.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:25:33,588 INFO L158 Benchmark]: RCFGBuilder took 178.36ms. Allocated memory is still 88.1MB. Free memory was 62.8MB in the beginning and 52.7MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:25:33,589 INFO L158 Benchmark]: BuchiAutomizer took 10589.42ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 52.3MB in the beginning and 42.8MB in the end (delta: 9.5MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2021-12-14 23:25:33,589 INFO L158 Benchmark]: Witness Printer took 2.04ms. Allocated memory is still 140.5MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:25:33,590 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.74ms. Allocated memory is still 88.1MB. Free memory was 57.5MB in the beginning and 65.8MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.28ms. Allocated memory is still 88.1MB. Free memory was 65.8MB in the beginning and 64.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.98ms. Allocated memory is still 88.1MB. Free memory was 64.0MB in the beginning and 62.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 178.36ms. Allocated memory is still 88.1MB. Free memory was 62.8MB in the beginning and 52.7MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10589.42ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 52.3MB in the beginning and 42.8MB in the end (delta: 9.5MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. * Witness Printer took 2.04ms. Allocated memory is still 140.5MB. Free memory is still 42.8MB. 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 8 terminating modules (3 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[str1] and consists of 5 locations. One deterministic module has affine ranking function MAX + 2 * i and consists of 8 locations. One deterministic module has affine ranking function 2 * i + 1 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + MAX and consists of 9 locations. One deterministic module has affine ranking function 2 * j + unknown-#length-unknown[str2] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.5s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 9.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 8. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 23 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 59 mSDtfsCounter, 165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU3 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital232 mio100 ax100 hnf100 lsp94 ukn75 mio100 lsp41 div131 bol100 ite100 ukn100 eq167 hnf84 smp94 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 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 23:25:33,609 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 23:25:33,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-12-14 23:25:34,026 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