./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.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 d91701eebdfdecedc9970dee0ff0bf466be0caef .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 17:13:14,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 17:13:14,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 17:13:14,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 17:13:14,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 17:13:14,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 17:13:14,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 17:13:14,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 17:13:14,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 17:13:14,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 17:13:14,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 17:13:14,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 17:13:14,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 17:13:14,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 17:13:14,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 17:13:14,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 17:13:14,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 17:13:14,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 17:13:14,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 17:13:14,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 17:13:14,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 17:13:14,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 17:13:14,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 17:13:14,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 17:13:14,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 17:13:14,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 17:13:14,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 17:13:14,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 17:13:14,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 17:13:14,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 17:13:14,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 17:13:14,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 17:13:14,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 17:13:14,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 17:13:14,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 17:13:14,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 17:13:14,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 17:13:14,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 17:13:14,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 17:13:14,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 17:13:14,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 17:13:14,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 17:13:14,768 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 17:13:14,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 17:13:14,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 17:13:14,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 17:13:14,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 17:13:14,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 17:13:14,773 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 17:13:14,773 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 17:13:14,773 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 17:13:14,773 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 17:13:14,774 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 17:13:14,774 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 17:13:14,774 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 17:13:14,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 17:13:14,774 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 17:13:14,775 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 17:13:14,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 17:13:14,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 17:13:14,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 17:13:14,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 17:13:14,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 17:13:14,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 17:13:14,776 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 17:13:14,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 17:13:14,776 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 17:13:14,776 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 17:13:14,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 17:13:14,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 17:13:14,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 17:13:14,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 17:13:14,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 17:13:14,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 17:13:14,778 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 17:13:14,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d91701eebdfdecedc9970dee0ff0bf466be0caef [2021-08-27 17:13:15,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 17:13:15,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 17:13:15,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 17:13:15,042 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 17:13:15,042 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 17:13:15,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2021-08-27 17:13:15,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86eb5873/43c9e97b809848d99e22bf56e9617d10/FLAG7ef2e9245 [2021-08-27 17:13:15,466 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 17:13:15,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2021-08-27 17:13:15,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86eb5873/43c9e97b809848d99e22bf56e9617d10/FLAG7ef2e9245 [2021-08-27 17:13:15,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86eb5873/43c9e97b809848d99e22bf56e9617d10 [2021-08-27 17:13:15,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 17:13:15,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 17:13:15,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 17:13:15,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 17:13:15,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 17:13:15,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d55287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15, skipping insertion in model container [2021-08-27 17:13:15,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 17:13:15,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 17:13:15,712 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c[14444,14457] [2021-08-27 17:13:15,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:13:15,725 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 17:13:15,784 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c[14444,14457] [2021-08-27 17:13:15,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:13:15,803 INFO L208 MainTranslator]: Completed translation [2021-08-27 17:13:15,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15 WrapperNode [2021-08-27 17:13:15,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 17:13:15,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 17:13:15,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 17:13:15,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 17:13:15,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 17:13:15,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 17:13:15,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 17:13:15,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 17:13:15,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 17:13:15,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 17:13:15,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 17:13:15,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 17:13:15,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (1/1) ... [2021-08-27 17:13:15,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:15,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:15,922 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) [2021-08-27 17:13:15,952 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 [2021-08-27 17:13:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 17:13:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 17:13:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 17:13:15,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 17:13:16,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 17:13:16,728 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-08-27 17:13:16,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:13:16 BoogieIcfgContainer [2021-08-27 17:13:16,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 17:13:16,731 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 17:13:16,731 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 17:13:16,734 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 17:13:16,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:13:16,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 05:13:15" (1/3) ... [2021-08-27 17:13:16,735 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@164ed8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:13:16, skipping insertion in model container [2021-08-27 17:13:16,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:13:16,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:13:15" (2/3) ... [2021-08-27 17:13:16,736 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@164ed8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:13:16, skipping insertion in model container [2021-08-27 17:13:16,736 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:13:16,736 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:13:16" (3/3) ... [2021-08-27 17:13:16,737 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2021-08-27 17:13:16,767 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 17:13:16,768 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 17:13:16,768 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 17:13:16,768 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 17:13:16,768 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 17:13:16,768 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 17:13:16,768 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 17:13:16,768 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 17:13:16,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 142 states, 141 states have (on average 1.75177304964539) internal successors, (247), 141 states have internal predecessors, (247), 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) [2021-08-27 17:13:16,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 78 [2021-08-27 17:13:16,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:13:16,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:13:16,816 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:16,816 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:16,817 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 17:13:16,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 142 states, 141 states have (on average 1.75177304964539) internal successors, (247), 141 states have internal predecessors, (247), 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) [2021-08-27 17:13:16,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 78 [2021-08-27 17:13:16,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:13:16,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:13:16,834 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:16,834 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:16,841 INFO L791 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(43);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 32#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_#t~post45, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~newmax1~0 := main_#t~nondet26;havoc main_#t~nondet26;~id2~0 := main_#t~nondet27;havoc main_#t~nondet27;~r2~0 := main_#t~nondet28;havoc main_#t~nondet28;~st2~0 := main_#t~nondet29;havoc main_#t~nondet29;~nl2~0 := main_#t~nondet30;havoc main_#t~nondet30;~m2~0 := main_#t~nondet31;havoc main_#t~nondet31;~max2~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode2~0 := main_#t~nondet33;havoc main_#t~nondet33;~newmax2~0 := main_#t~nondet34;havoc main_#t~nondet34;~id3~0 := main_#t~nondet35;havoc main_#t~nondet35;~r3~0 := main_#t~nondet36;havoc main_#t~nondet36;~st3~0 := main_#t~nondet37;havoc main_#t~nondet37;~nl3~0 := main_#t~nondet38;havoc main_#t~nondet38;~m3~0 := main_#t~nondet39;havoc main_#t~nondet39;~max3~0 := main_#t~nondet40;havoc main_#t~nondet40;~mode3~0 := main_#t~nondet41;havoc main_#t~nondet41;~newmax3~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 64#L259true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 22#L262-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 33#L272true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 134#L275-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 119#L285true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 60#L288-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 25#L298true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 93#L301-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 39#L311true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 48#L314-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 12#L324true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 108#L327-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 72#L337true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 142#L337-1true init_#res := init_~tmp___5~0; 104#L458true main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 94#L21true assume !(0 == assume_abort_if_not_~cond); 13#L20true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 75#L569-2true [2021-08-27 17:13:16,842 INFO L793 eck$LassoCheckResult]: Loop: 75#L569-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 87#L82true assume !(0 != ~mode1~0 % 256); 65#L110true assume !(~r1~0 < 1); 16#L110-1true ~mode1~0 := 1; 135#L82-2true havoc node2_#t~ite9, node2_#t~ite10, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 112#L133true assume !(0 != ~mode2~0 % 256); 8#L161true assume !(~r2~0 < 2); 67#L161-1true ~mode2~0 := 1; 20#L133-2true havoc node3_#t~ite11, node3_#t~ite12, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 78#L184true assume !(0 != ~mode3~0 % 256); 69#L212true assume !(~r3~0 < 2); 96#L212-1true ~mode3~0 := 1; 74#L184-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 138#L466true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 68#L466-1true check_#res := check_~tmp~1; 76#L514true main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 54#L599true assume !(0 == assert_~arg % 256); 97#L594true main_#t~post45 := main_~i2~0;main_~i2~0 := 1 + main_#t~post45;havoc main_#t~post45; 75#L569-2true [2021-08-27 17:13:16,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:16,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 1 times [2021-08-27 17:13:16,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:13:16,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724533480] [2021-08-27 17:13:16,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:13:16,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:13:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:13:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:13:17,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:13:17,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724533480] [2021-08-27 17:13:17,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724533480] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:13:17,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:13:17,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 17:13:17,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787419497] [2021-08-27 17:13:17,088 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:13:17,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:17,090 INFO L82 PathProgramCache]: Analyzing trace with hash 339208114, now seen corresponding path program 1 times [2021-08-27 17:13:17,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:13:17,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342760523] [2021-08-27 17:13:17,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:13:17,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:13:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:13:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:13:17,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:13:17,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342760523] [2021-08-27 17:13:17,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342760523] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:13:17,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:13:17,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 17:13:17,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997427926] [2021-08-27 17:13:17,219 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 17:13:17,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:13:17,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 17:13:17,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 17:13:17,230 INFO L87 Difference]: Start difference. First operand has 142 states, 141 states have (on average 1.75177304964539) internal successors, (247), 141 states have internal predecessors, (247), 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 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-08-27 17:13:17,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:13:17,322 INFO L93 Difference]: Finished difference Result 146 states and 247 transitions. [2021-08-27 17:13:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 17:13:17,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 247 transitions. [2021-08-27 17:13:17,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-08-27 17:13:17,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 137 states and 231 transitions. [2021-08-27 17:13:17,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2021-08-27 17:13:17,344 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 137 [2021-08-27 17:13:17,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 231 transitions. [2021-08-27 17:13:17,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:13:17,345 INFO L681 BuchiCegarLoop]: Abstraction has 137 states and 231 transitions. [2021-08-27 17:13:17,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 231 transitions. [2021-08-27 17:13:17,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-08-27 17:13:17,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 137 states have (on average 1.686131386861314) internal successors, (231), 136 states have internal predecessors, (231), 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) [2021-08-27 17:13:17,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 231 transitions. [2021-08-27 17:13:17,374 INFO L704 BuchiCegarLoop]: Abstraction has 137 states and 231 transitions. [2021-08-27 17:13:17,374 INFO L587 BuchiCegarLoop]: Abstraction has 137 states and 231 transitions. [2021-08-27 17:13:17,374 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 17:13:17,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 231 transitions. [2021-08-27 17:13:17,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-08-27 17:13:17,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:13:17,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:13:17,380 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:17,380 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:17,381 INFO L791 eck$LassoCheckResult]: Stem: 435#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(43);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 364#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_#t~post45, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~newmax1~0 := main_#t~nondet26;havoc main_#t~nondet26;~id2~0 := main_#t~nondet27;havoc main_#t~nondet27;~r2~0 := main_#t~nondet28;havoc main_#t~nondet28;~st2~0 := main_#t~nondet29;havoc main_#t~nondet29;~nl2~0 := main_#t~nondet30;havoc main_#t~nondet30;~m2~0 := main_#t~nondet31;havoc main_#t~nondet31;~max2~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode2~0 := main_#t~nondet33;havoc main_#t~nondet33;~newmax2~0 := main_#t~nondet34;havoc main_#t~nondet34;~id3~0 := main_#t~nondet35;havoc main_#t~nondet35;~r3~0 := main_#t~nondet36;havoc main_#t~nondet36;~st3~0 := main_#t~nondet37;havoc main_#t~nondet37;~nl3~0 := main_#t~nondet38;havoc main_#t~nondet38;~m3~0 := main_#t~nondet39;havoc main_#t~nondet39;~max3~0 := main_#t~nondet40;havoc main_#t~nondet40;~mode3~0 := main_#t~nondet41;havoc main_#t~nondet41;~newmax3~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 365#L259 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 344#L262-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 345#L272 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 307#L275-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 432#L285 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 350#L288-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 352#L298 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 353#L301-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 373#L311 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 368#L314-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 326#L324 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 328#L327-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 412#L337 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 322#L337-1 init_#res := init_~tmp___5~0; 428#L458 main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 424#L21 assume !(0 == assume_abort_if_not_~cond); 329#L20 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 330#L569-2 [2021-08-27 17:13:17,381 INFO L793 eck$LassoCheckResult]: Loop: 330#L569-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 415#L82 assume !(0 != ~mode1~0 % 256); 405#L110 assume !(~r1~0 < 1); 312#L110-1 ~mode1~0 := 1; 333#L82-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 429#L133 assume !(0 != ~mode2~0 % 256); 316#L161 assume !(~r2~0 < 2); 309#L161-1 ~mode2~0 := 1; 339#L133-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 340#L184 assume !(0 != ~mode3~0 % 256); 409#L212 assume !(~r3~0 < 2); 376#L212-1 ~mode3~0 := 1; 413#L184-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 414#L466 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 442#L467 assume ~st1~0 + ~nl1~0 <= 1; 436#L468 assume ~st2~0 + ~nl2~0 <= 1; 318#L469 assume ~st3~0 + ~nl3~0 <= 1; 319#L470 assume ~r1~0 >= 2; 383#L474 assume ~r1~0 < 2; 385#L479 assume ~r1~0 >= 2; 403#L484 assume ~r1~0 < 2;check_~tmp~1 := 1; 402#L466-1 check_#res := check_~tmp~1; 408#L514 main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 394#L599 assume !(0 == assert_~arg % 256); 395#L594 main_#t~post45 := main_~i2~0;main_~i2~0 := 1 + main_#t~post45;havoc main_#t~post45; 330#L569-2 [2021-08-27 17:13:17,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:17,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 2 times [2021-08-27 17:13:17,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:13:17,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544731604] [2021-08-27 17:13:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:13:17,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:13:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:13:17,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:13:17,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:13:17,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544731604] [2021-08-27 17:13:17,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544731604] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:13:17,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:13:17,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 17:13:17,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289574260] [2021-08-27 17:13:17,470 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:13:17,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:17,471 INFO L82 PathProgramCache]: Analyzing trace with hash -191058054, now seen corresponding path program 1 times [2021-08-27 17:13:17,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:13:17,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031665093] [2021-08-27 17:13:17,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:13:17,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:13:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:13:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:13:17,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:13:17,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031665093] [2021-08-27 17:13:17,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031665093] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:13:17,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:13:17,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 17:13:17,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647324567] [2021-08-27 17:13:17,513 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 17:13:17,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:13:17,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 17:13:17,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 17:13:17,514 INFO L87 Difference]: Start difference. First operand 137 states and 231 transitions. cyclomatic complexity: 95 Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 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) [2021-08-27 17:13:17,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:13:17,609 INFO L93 Difference]: Finished difference Result 140 states and 233 transitions. [2021-08-27 17:13:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 17:13:17,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 233 transitions. [2021-08-27 17:13:17,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-08-27 17:13:17,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 137 states and 201 transitions. [2021-08-27 17:13:17,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2021-08-27 17:13:17,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 137 [2021-08-27 17:13:17,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 201 transitions. [2021-08-27 17:13:17,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:13:17,619 INFO L681 BuchiCegarLoop]: Abstraction has 137 states and 201 transitions. [2021-08-27 17:13:17,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 201 transitions. [2021-08-27 17:13:17,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-08-27 17:13:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 137 states have (on average 1.467153284671533) internal successors, (201), 136 states have internal predecessors, (201), 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) [2021-08-27 17:13:17,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 201 transitions. [2021-08-27 17:13:17,632 INFO L704 BuchiCegarLoop]: Abstraction has 137 states and 201 transitions. [2021-08-27 17:13:17,632 INFO L587 BuchiCegarLoop]: Abstraction has 137 states and 201 transitions. [2021-08-27 17:13:17,632 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 17:13:17,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 201 transitions. [2021-08-27 17:13:17,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-08-27 17:13:17,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:13:17,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:13:17,636 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:17,637 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:17,637 INFO L791 eck$LassoCheckResult]: Stem: 725#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(43);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 653#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_#t~post45, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~newmax1~0 := main_#t~nondet26;havoc main_#t~nondet26;~id2~0 := main_#t~nondet27;havoc main_#t~nondet27;~r2~0 := main_#t~nondet28;havoc main_#t~nondet28;~st2~0 := main_#t~nondet29;havoc main_#t~nondet29;~nl2~0 := main_#t~nondet30;havoc main_#t~nondet30;~m2~0 := main_#t~nondet31;havoc main_#t~nondet31;~max2~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode2~0 := main_#t~nondet33;havoc main_#t~nondet33;~newmax2~0 := main_#t~nondet34;havoc main_#t~nondet34;~id3~0 := main_#t~nondet35;havoc main_#t~nondet35;~r3~0 := main_#t~nondet36;havoc main_#t~nondet36;~st3~0 := main_#t~nondet37;havoc main_#t~nondet37;~nl3~0 := main_#t~nondet38;havoc main_#t~nondet38;~m3~0 := main_#t~nondet39;havoc main_#t~nondet39;~max3~0 := main_#t~nondet40;havoc main_#t~nondet40;~mode3~0 := main_#t~nondet41;havoc main_#t~nondet41;~newmax3~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 654#L259 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 633#L262-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 634#L272 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 597#L275-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 722#L285 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 639#L288-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 641#L298 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 642#L301-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 662#L311 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 657#L314-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 617#L324 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 619#L327-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 701#L337 assume ~id1~0 != ~id2~0; 666#L338 assume ~id1~0 != ~id3~0; 667#L339 assume ~id2~0 != ~id3~0; 714#L340 assume ~id1~0 >= 0; 710#L341 assume ~id2~0 >= 0; 649#L342 assume ~id3~0 >= 0; 650#L343 assume 0 == ~r1~0; 644#L344 assume 0 == ~r2~0; 645#L345 assume 0 == ~r3~0; 658#L346 assume 0 != init_~r122~0 % 256; 659#L347 assume 0 != init_~r132~0 % 256; 721#L348 assume 0 != init_~r212~0 % 256; 706#L349 assume 0 != init_~r232~0 % 256; 707#L350 assume 0 != init_~r312~0 % 256; 695#L351 assume 0 != init_~r322~0 % 256; 696#L352 assume ~max1~0 == ~id1~0; 712#L353 assume ~max2~0 == ~id2~0; 679#L354 assume ~max3~0 == ~id3~0; 651#L355 assume 0 == ~st1~0; 652#L356 assume 0 == ~st2~0; 677#L357 assume 0 == ~st3~0; 613#L358 assume 0 == ~nl1~0; 614#L359 assume 0 == ~nl2~0; 620#L360 assume 0 == ~nl3~0; 621#L361 assume 0 == ~mode1~0 % 256; 700#L362 assume 0 == ~mode2~0 % 256; 730#L363 assume 0 == ~mode3~0 % 256; 731#L364 assume 0 != ~newmax1~0 % 256; 670#L365 assume 0 != ~newmax2~0 % 256; 671#L366 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0 := 1; 718#L337-1 init_#res := init_~tmp___5~0; 716#L458 main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 713#L21 assume !(0 == assume_abort_if_not_~cond); 615#L20 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 616#L569-2 [2021-08-27 17:13:17,637 INFO L793 eck$LassoCheckResult]: Loop: 616#L569-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 704#L82 assume !(0 != ~mode1~0 % 256); 694#L110 assume !(~r1~0 < 1); 602#L110-1 ~mode1~0 := 1; 622#L82-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 719#L133 assume !(0 != ~mode2~0 % 256); 606#L161 assume !(~r2~0 < 2); 599#L161-1 ~mode2~0 := 1; 628#L133-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 629#L184 assume !(0 != ~mode3~0 % 256); 698#L212 assume !(~r3~0 < 2); 665#L212-1 ~mode3~0 := 1; 702#L184-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 703#L466 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 732#L467 assume ~st1~0 + ~nl1~0 <= 1; 726#L468 assume ~st2~0 + ~nl2~0 <= 1; 608#L469 assume ~st3~0 + ~nl3~0 <= 1; 609#L470 assume ~r1~0 >= 2; 674#L474 assume ~r1~0 < 2; 676#L479 assume ~r1~0 >= 2; 692#L484 assume ~r1~0 < 2;check_~tmp~1 := 1; 691#L466-1 check_#res := check_~tmp~1; 697#L514 main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 683#L599 assume !(0 == assert_~arg % 256); 684#L594 main_#t~post45 := main_~i2~0;main_~i2~0 := 1 + main_#t~post45;havoc main_#t~post45; 616#L569-2 [2021-08-27 17:13:17,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:17,638 INFO L82 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 1 times [2021-08-27 17:13:17,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:13:17,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056750023] [2021-08-27 17:13:17,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:13:17,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:13:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:13:17,695 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:13:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:13:17,771 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:13:17,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:17,772 INFO L82 PathProgramCache]: Analyzing trace with hash -191058054, now seen corresponding path program 2 times [2021-08-27 17:13:17,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:13:17,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496024766] [2021-08-27 17:13:17,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:13:17,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:13:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:13:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:13:17,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:13:17,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496024766] [2021-08-27 17:13:17,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496024766] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:13:17,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:13:17,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 17:13:17,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094645035] [2021-08-27 17:13:17,810 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 17:13:17,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:13:17,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 17:13:17,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 17:13:17,811 INFO L87 Difference]: Start difference. First operand 137 states and 201 transitions. cyclomatic complexity: 65 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-08-27 17:13:17,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:13:17,859 INFO L93 Difference]: Finished difference Result 195 states and 288 transitions. [2021-08-27 17:13:17,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 17:13:17,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 288 transitions. [2021-08-27 17:13:17,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 135 [2021-08-27 17:13:17,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 195 states and 288 transitions. [2021-08-27 17:13:17,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2021-08-27 17:13:17,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2021-08-27 17:13:17,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 288 transitions. [2021-08-27 17:13:17,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:13:17,863 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 288 transitions. [2021-08-27 17:13:17,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 288 transitions. [2021-08-27 17:13:17,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-08-27 17:13:17,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 195 states have (on average 1.476923076923077) internal successors, (288), 194 states have internal predecessors, (288), 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) [2021-08-27 17:13:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 288 transitions. [2021-08-27 17:13:17,882 INFO L704 BuchiCegarLoop]: Abstraction has 195 states and 288 transitions. [2021-08-27 17:13:17,882 INFO L587 BuchiCegarLoop]: Abstraction has 195 states and 288 transitions. [2021-08-27 17:13:17,882 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 17:13:17,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 288 transitions. [2021-08-27 17:13:17,883 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 135 [2021-08-27 17:13:17,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:13:17,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:13:17,886 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:17,886 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 17:13:17,886 INFO L791 eck$LassoCheckResult]: Stem: 1069#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(43);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 991#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_#t~post45, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~newmax1~0 := main_#t~nondet26;havoc main_#t~nondet26;~id2~0 := main_#t~nondet27;havoc main_#t~nondet27;~r2~0 := main_#t~nondet28;havoc main_#t~nondet28;~st2~0 := main_#t~nondet29;havoc main_#t~nondet29;~nl2~0 := main_#t~nondet30;havoc main_#t~nondet30;~m2~0 := main_#t~nondet31;havoc main_#t~nondet31;~max2~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode2~0 := main_#t~nondet33;havoc main_#t~nondet33;~newmax2~0 := main_#t~nondet34;havoc main_#t~nondet34;~id3~0 := main_#t~nondet35;havoc main_#t~nondet35;~r3~0 := main_#t~nondet36;havoc main_#t~nondet36;~st3~0 := main_#t~nondet37;havoc main_#t~nondet37;~nl3~0 := main_#t~nondet38;havoc main_#t~nondet38;~m3~0 := main_#t~nondet39;havoc main_#t~nondet39;~max3~0 := main_#t~nondet40;havoc main_#t~nondet40;~mode3~0 := main_#t~nondet41;havoc main_#t~nondet41;~newmax3~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 992#L259 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 971#L262-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 972#L272 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 935#L275-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1066#L285 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 974#L288-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 979#L298 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 980#L301-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1001#L311 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 995#L314-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 953#L324 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 955#L327-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1042#L337 assume ~id1~0 != ~id2~0; 1005#L338 assume ~id1~0 != ~id3~0; 1006#L339 assume ~id2~0 != ~id3~0; 1058#L340 assume ~id1~0 >= 0; 1052#L341 assume ~id2~0 >= 0; 987#L342 assume ~id3~0 >= 0; 988#L343 assume 0 == ~r1~0; 982#L344 assume 0 == ~r2~0; 983#L345 assume 0 == ~r3~0; 996#L346 assume 0 != init_~r122~0 % 256; 997#L347 assume 0 != init_~r132~0 % 256; 1065#L348 assume 0 != init_~r212~0 % 256; 1048#L349 assume 0 != init_~r232~0 % 256; 1049#L350 assume 0 != init_~r312~0 % 256; 1034#L351 assume 0 != init_~r322~0 % 256; 1035#L352 assume ~max1~0 == ~id1~0; 1054#L353 assume ~max2~0 == ~id2~0; 1017#L354 assume ~max3~0 == ~id3~0; 989#L355 assume 0 == ~st1~0; 990#L356 assume 0 == ~st2~0; 1015#L357 assume 0 == ~st3~0; 948#L358 assume 0 == ~nl1~0; 949#L359 assume 0 == ~nl2~0; 958#L360 assume 0 == ~nl3~0; 959#L361 assume 0 == ~mode1~0 % 256; 1041#L362 assume 0 == ~mode2~0 % 256; 1078#L363 assume 0 == ~mode3~0 % 256; 1079#L364 assume 0 != ~newmax1~0 % 256; 1009#L365 assume 0 != ~newmax2~0 % 256; 1010#L366 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0 := 1; 1061#L337-1 init_#res := init_~tmp___5~0; 1060#L458 main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 1055#L21 assume !(0 == assume_abort_if_not_~cond); 956#L20 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 957#L569-2 [2021-08-27 17:13:17,887 INFO L793 eck$LassoCheckResult]: Loop: 957#L569-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 1084#L82 assume !(0 != ~mode1~0 % 256); 1083#L110 assume !(~r1~0 < 1); 940#L110-1 ~mode1~0 := 1; 960#L82-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 1062#L133 assume !(0 != ~mode2~0 % 256); 1063#L161 assume !(~r2~0 < 2); 1108#L161-1 ~mode2~0 := 1; 1107#L133-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 1104#L184 assume !(0 != ~mode3~0 % 256); 1097#L212 assume !(~r3~0 < 2); 1095#L212-1 ~mode3~0 := 1; 1094#L184-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1093#L466 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1092#L467 assume ~st1~0 + ~nl1~0 <= 1; 1091#L468 assume ~st2~0 + ~nl2~0 <= 1; 1090#L469 assume ~st3~0 + ~nl3~0 <= 1; 1089#L470 assume !(~r1~0 >= 2); 1073#L473 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 1074#L474 assume ~r1~0 < 2; 1082#L479 assume !(~r1~0 >= 2); 1056#L483 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 1057#L484 assume ~r1~0 < 2;check_~tmp~1 := 1; 1088#L466-1 check_#res := check_~tmp~1; 1087#L514 main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1086#L599 assume !(0 == assert_~arg % 256); 1085#L594 main_#t~post45 := main_~i2~0;main_~i2~0 := 1 + main_#t~post45;havoc main_#t~post45; 957#L569-2 [2021-08-27 17:13:17,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:17,887 INFO L82 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 2 times [2021-08-27 17:13:17,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:13:17,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393950421] [2021-08-27 17:13:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:13:17,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:13:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:13:17,919 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:13:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:13:17,947 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:13:17,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:17,948 INFO L82 PathProgramCache]: Analyzing trace with hash -2102521574, now seen corresponding path program 1 times [2021-08-27 17:13:17,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:13:17,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154747091] [2021-08-27 17:13:17,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:13:17,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:13:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:13:17,953 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:13:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:13:17,959 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:13:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:17,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1865528147, now seen corresponding path program 1 times [2021-08-27 17:13:17,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:13:17,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213911563] [2021-08-27 17:13:17,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:13:17,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:13:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:13:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:13:18,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:13:18,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213911563] [2021-08-27 17:13:18,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213911563] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:13:18,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:13:18,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 17:13:18,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106364951] [2021-08-27 17:13:18,715 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:13:18,716 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:13:18,716 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:13:18,717 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:13:18,717 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 17:13:18,717 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:18,717 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:13:18,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:13:18,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-08-27 17:13:18,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:13:18,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:13:18,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:18,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,204 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:13:19,205 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 17:13:19,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:19,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:19,207 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) [2021-08-27 17:13:19,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 17:13:19,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 17:13:19,222 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 [2021-08-27 17:13:19,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-27 17:13:19,249 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:19,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:19,250 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) [2021-08-27 17:13:19,251 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 [2021-08-27 17:13:19,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 17:13:19,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 17:13:19,358 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 17:13:19,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 17:13:19,362 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:13:19,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:13:19,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:13:19,362 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:13:19,362 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:13:19,362 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:19,362 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:13:19,362 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:13:19,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-08-27 17:13:19,362 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:13:19,362 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:13:19,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:13:19,787 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:13:19,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:13:19,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:19,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:19,792 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) [2021-08-27 17:13:19,800 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 [2021-08-27 17:13:19,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:19,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:19,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:19,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:19,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:19,809 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 [2021-08-27 17:13:19,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:19,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:19,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:19,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 17:13:19,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:19,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:19,844 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) [2021-08-27 17:13:19,845 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 [2021-08-27 17:13:19,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:13:19,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:19,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:19,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:19,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:19,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:13:19,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:13:19,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:19,897 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 [2021-08-27 17:13:19,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:19,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:19,898 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) [2021-08-27 17:13:19,899 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 [2021-08-27 17:13:19,901 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 [2021-08-27 17:13:19,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:19,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:19,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:19,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:19,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:19,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:19,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:19,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:19,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 17:13:19,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:19,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:19,934 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) [2021-08-27 17:13:19,935 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 [2021-08-27 17:13:19,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:13:19,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:19,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:19,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:19,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:19,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:19,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:19,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:19,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:19,960 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 [2021-08-27 17:13:19,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:19,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:19,961 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) [2021-08-27 17:13:19,973 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 [2021-08-27 17:13:19,974 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 [2021-08-27 17:13:19,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:19,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:19,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:19,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:19,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:19,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:19,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:19,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,002 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 [2021-08-27 17:13:20,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,003 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) [2021-08-27 17:13:20,004 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 [2021-08-27 17:13:20,005 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 [2021-08-27 17:13:20,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:13:20,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:13:20,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,034 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 [2021-08-27 17:13:20,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,035 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) [2021-08-27 17:13:20,036 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 [2021-08-27 17:13:20,037 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 [2021-08-27 17:13:20,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:20,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:20,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:20,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 17:13:20,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,066 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) [2021-08-27 17:13:20,069 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 [2021-08-27 17:13:20,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:13:20,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:20,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:20,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:20,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,100 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 [2021-08-27 17:13:20,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,101 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) [2021-08-27 17:13:20,101 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 [2021-08-27 17:13:20,103 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 [2021-08-27 17:13:20,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:20,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:20,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:20,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 17:13:20,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,128 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) [2021-08-27 17:13:20,128 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 [2021-08-27 17:13:20,130 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 [2021-08-27 17:13:20,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:20,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:20,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:20,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 17:13:20,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,156 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) [2021-08-27 17:13:20,156 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 [2021-08-27 17:13:20,158 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 [2021-08-27 17:13:20,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:13:20,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:13:20,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,185 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 [2021-08-27 17:13:20,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,186 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) [2021-08-27 17:13:20,187 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 [2021-08-27 17:13:20,189 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 [2021-08-27 17:13:20,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:20,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:20,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:20,196 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,212 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 [2021-08-27 17:13:20,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,213 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) [2021-08-27 17:13:20,222 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 [2021-08-27 17:13:20,223 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 [2021-08-27 17:13:20,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:20,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:20,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:20,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,250 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 [2021-08-27 17:13:20,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,251 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) [2021-08-27 17:13:20,252 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 [2021-08-27 17:13:20,254 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 [2021-08-27 17:13:20,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:20,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:20,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:20,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:13:20,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-27 17:13:20,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,278 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) [2021-08-27 17:13:20,278 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 [2021-08-27 17:13:20,280 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 [2021-08-27 17:13:20,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:13:20,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:13:20,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:13:20,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:13:20,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:13:20,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:13:20,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:13:20,295 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:13:20,317 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 17:13:20,317 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 17:13:20,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:13:20,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:13:20,321 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) [2021-08-27 17:13:20,331 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:13:20,331 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 17:13:20,331 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:13:20,332 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] [2021-08-27 17:13:20,332 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 [2021-08-27 17:13:20,351 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 [2021-08-27 17:13:20,353 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 17:13:20,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:13:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:13:20,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 17:13:20,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:13:20,629 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 [2021-08-27 17:13:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:13:20,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 17:13:20,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:13:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:13:20,851 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 [2021-08-27 17:13:20,852 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 195 states and 288 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-08-27 17:13:20,905 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 195 states and 288 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 329 states and 498 transitions. Complement of second has 4 states. [2021-08-27 17:13:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 17:13:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-08-27 17:13:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2021-08-27 17:13:20,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 201 transitions. Stem has 48 letters. Loop has 27 letters. [2021-08-27 17:13:20,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:13:20,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 201 transitions. Stem has 75 letters. Loop has 27 letters. [2021-08-27 17:13:20,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:13:20,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 201 transitions. Stem has 48 letters. Loop has 54 letters. [2021-08-27 17:13:20,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:13:20,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 329 states and 498 transitions. [2021-08-27 17:13:20,922 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:13:20,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 329 states to 0 states and 0 transitions. [2021-08-27 17:13:20,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 17:13:20,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 17:13:20,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 17:13:20,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:13:20,923 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:13:20,923 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:13:20,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:13:20,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 17:13:20,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 17:13:20,924 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-08-27 17:13:20,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:13:20,924 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-27 17:13:20,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 17:13:20,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-27 17:13:20,925 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:13:20,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 17:13:20,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 17:13:20,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 17:13:20,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 17:13:20,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:13:20,925 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:13:20,925 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:13:20,925 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:13:20,925 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 17:13:20,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 17:13:20,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:13:20,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 17:13:20,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 05:13:20 BoogieIcfgContainer [2021-08-27 17:13:20,929 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 17:13:20,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 17:13:20,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 17:13:20,930 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 17:13:20,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:13:16" (3/4) ... [2021-08-27 17:13:20,932 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 17:13:20,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 17:13:20,933 INFO L168 Benchmark]: Toolchain (without parser) took 5438.43 ms. Allocated memory was 52.4 MB in the beginning and 146.8 MB in the end (delta: 94.4 MB). Free memory was 29.7 MB in the beginning and 119.1 MB in the end (delta: -89.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-08-27 17:13:20,934 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:13:20,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.81 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.5 MB in the beginning and 47.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-08-27 17:13:20,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.77 ms. Allocated memory is still 69.2 MB. Free memory was 47.2 MB in the beginning and 44.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 17:13:20,939 INFO L168 Benchmark]: Boogie Preprocessor took 24.54 ms. Allocated memory is still 69.2 MB. Free memory was 44.4 MB in the beginning and 41.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 17:13:20,939 INFO L168 Benchmark]: RCFGBuilder took 847.43 ms. Allocated memory is still 69.2 MB. Free memory was 41.9 MB in the beginning and 42.9 MB in the end (delta: -1.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-08-27 17:13:20,939 INFO L168 Benchmark]: BuchiAutomizer took 4198.50 ms. Allocated memory was 69.2 MB in the beginning and 146.8 MB in the end (delta: 77.6 MB). Free memory was 42.9 MB in the beginning and 119.1 MB in the end (delta: -76.3 MB). Peak memory consumption was 692.5 kB. Max. memory is 16.1 GB. [2021-08-27 17:13:20,939 INFO L168 Benchmark]: Witness Printer took 2.35 ms. Allocated memory is still 146.8 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:13:20,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.81 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.5 MB in the beginning and 47.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.77 ms. Allocated memory is still 69.2 MB. Free memory was 47.2 MB in the beginning and 44.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.54 ms. Allocated memory is still 69.2 MB. Free memory was 44.4 MB in the beginning and 41.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 847.43 ms. Allocated memory is still 69.2 MB. Free memory was 41.9 MB in the beginning and 42.9 MB in the end (delta: -1.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4198.50 ms. Allocated memory was 69.2 MB in the beginning and 146.8 MB in the end (delta: 77.6 MB). Free memory was 42.9 MB in the beginning and 119.1 MB in the end (delta: -76.3 MB). Peak memory consumption was 692.5 kB. Max. memory is 16.1 GB. * Witness Printer took 2.35 ms. Allocated memory is still 146.8 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 52.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 195 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 944 SDtfs, 418 SDslu, 1669 SDs, 0 SdLazy, 46 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital133 mio100 ax127 hnf107 lsp20 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 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: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 17:13:20,974 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...