./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.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.3.2.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 dd0859243246f60a71565c745331aae0aa96ecec ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:12:16,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 17:12:16,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 17:12:16,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 17:12:16,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 17:12:16,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 17:12:16,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 17:12:16,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 17:12:16,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 17:12:16,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 17:12:16,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 17:12:16,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 17:12:16,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 17:12:16,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 17:12:16,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 17:12:16,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 17:12:16,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 17:12:16,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 17:12:16,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 17:12:16,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 17:12:16,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 17:12:16,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 17:12:16,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 17:12:16,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 17:12:16,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 17:12:16,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 17:12:16,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 17:12:16,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 17:12:16,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 17:12:16,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 17:12:16,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 17:12:16,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 17:12:16,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 17:12:16,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 17:12:16,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 17:12:16,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 17:12:16,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 17:12:16,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 17:12:16,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 17:12:16,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 17:12:16,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 17:12:16,865 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 17:12:16,893 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 17:12:16,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 17:12:16,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 17:12:16,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 17:12:16,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 17:12:16,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 17:12:16,896 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 17:12:16,897 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 17:12:16,897 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 17:12:16,897 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 17:12:16,897 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 17:12:16,898 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 17:12:16,898 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 17:12:16,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 17:12:16,898 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 17:12:16,898 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 17:12:16,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 17:12:16,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 17:12:16,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 17:12:16,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 17:12:16,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 17:12:16,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 17:12:16,899 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 17:12:16,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 17:12:16,900 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 17:12:16,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 17:12:16,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 17:12:16,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 17:12:16,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 17:12:16,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 17:12:16,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 17:12:16,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 17:12:16,902 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 17:12:16,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd0859243246f60a71565c745331aae0aa96ecec [2021-08-27 17:12:17,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 17:12:17,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 17:12:17,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 17:12:17,190 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 17:12:17,190 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 17:12:17,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-08-27 17:12:17,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0aef9ea8/5bb96f6f8b32441cad949d8f90b56b12/FLAG5ee318789 [2021-08-27 17:12:17,592 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 17:12:17,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-08-27 17:12:17,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0aef9ea8/5bb96f6f8b32441cad949d8f90b56b12/FLAG5ee318789 [2021-08-27 17:12:17,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0aef9ea8/5bb96f6f8b32441cad949d8f90b56b12 [2021-08-27 17:12:17,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 17:12:17,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 17:12:17,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 17:12:17,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 17:12:17,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 17:12:17,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:12:17" (1/1) ... [2021-08-27 17:12:17,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b5b0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:17, skipping insertion in model container [2021-08-27 17:12:17,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:12:17" (1/1) ... [2021-08-27 17:12:18,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 17:12:18,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 17:12:18,244 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.3.2.ufo.BOUNDED-6.pals.c[14444,14457] [2021-08-27 17:12:18,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:12:18,250 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 17:12:18,279 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.3.2.ufo.BOUNDED-6.pals.c[14444,14457] [2021-08-27 17:12:18,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:12:18,290 INFO L208 MainTranslator]: Completed translation [2021-08-27 17:12:18,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18 WrapperNode [2021-08-27 17:12:18,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 17:12:18,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 17:12:18,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 17:12:18,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 17:12:18,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 17:12:18,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 17:12:18,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 17:12:18,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 17:12:18,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 17:12:18,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 17:12:18,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 17:12:18,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 17:12:18,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (1/1) ... [2021-08-27 17:12:18,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:18,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:18,429 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 17:12:18,449 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 17:12:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 17:12:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 17:12:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 17:12:18,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 17:12:19,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 17:12:19,040 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-08-27 17:12:19,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:12:19 BoogieIcfgContainer [2021-08-27 17:12:19,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 17:12:19,042 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 17:12:19,043 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 17:12:19,045 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 17:12:19,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:12:19,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 05:12:17" (1/3) ... [2021-08-27 17:12:19,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73274421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:12:19, skipping insertion in model container [2021-08-27 17:12:19,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:12:19,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:12:18" (2/3) ... [2021-08-27 17:12:19,047 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73274421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:12:19, skipping insertion in model container [2021-08-27 17:12:19,047 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:12:19,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:12:19" (3/3) ... [2021-08-27 17:12:19,048 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-08-27 17:12:19,088 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 17:12:19,089 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 17:12:19,089 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 17:12:19,089 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 17:12:19,089 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 17:12:19,089 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 17:12:19,089 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 17:12:19,089 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 17:12:19,104 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 17:12:19,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 78 [2021-08-27 17:12:19,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:12:19,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:12:19,140 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 17:12:19,140 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 17:12:19,140 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 17:12:19,143 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 17:12:19,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 78 [2021-08-27 17:12:19,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:12:19,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:12:19,159 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 17:12:19,160 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 17:12:19,167 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 17:12:19,171 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 < 2); 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 17:12:19,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:19,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 1 times [2021-08-27 17:12:19,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:12:19,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385488580] [2021-08-27 17:12:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:12:19,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:12:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:12:19,408 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 17:12:19,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:12:19,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385488580] [2021-08-27 17:12:19,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385488580] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:12:19,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:12:19,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 17:12:19,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119294992] [2021-08-27 17:12:19,414 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:12:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:19,414 INFO L82 PathProgramCache]: Analyzing trace with hash 339208114, now seen corresponding path program 1 times [2021-08-27 17:12:19,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:12:19,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790869508] [2021-08-27 17:12:19,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:12:19,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:12:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:12:19,516 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 17:12:19,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:12:19,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790869508] [2021-08-27 17:12:19,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790869508] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:12:19,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:12:19,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 17:12:19,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713092999] [2021-08-27 17:12:19,518 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 17:12:19,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:12:19,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 17:12:19,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 17:12:19,529 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 17:12:19,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:12:19,584 INFO L93 Difference]: Finished difference Result 146 states and 247 transitions. [2021-08-27 17:12:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 17:12:19,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 247 transitions. [2021-08-27 17:12:19,588 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-08-27 17:12:19,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 137 states and 231 transitions. [2021-08-27 17:12:19,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2021-08-27 17:12:19,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 137 [2021-08-27 17:12:19,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 231 transitions. [2021-08-27 17:12:19,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:12:19,593 INFO L681 BuchiCegarLoop]: Abstraction has 137 states and 231 transitions. [2021-08-27 17:12:19,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 231 transitions. [2021-08-27 17:12:19,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-08-27 17:12:19,612 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 17:12:19,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 231 transitions. [2021-08-27 17:12:19,613 INFO L704 BuchiCegarLoop]: Abstraction has 137 states and 231 transitions. [2021-08-27 17:12:19,614 INFO L587 BuchiCegarLoop]: Abstraction has 137 states and 231 transitions. [2021-08-27 17:12:19,614 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 17:12:19,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 231 transitions. [2021-08-27 17:12:19,615 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-08-27 17:12:19,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:12:19,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:12:19,616 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 17:12:19,616 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 17:12:19,616 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 17:12:19,616 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 < 2); 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 17:12:19,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:19,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 2 times [2021-08-27 17:12:19,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:12:19,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592606263] [2021-08-27 17:12:19,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:12:19,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:12:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:12:19,672 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 17:12:19,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:12:19,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592606263] [2021-08-27 17:12:19,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592606263] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:12:19,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:12:19,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 17:12:19,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268113950] [2021-08-27 17:12:19,675 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 17:12:19,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:19,678 INFO L82 PathProgramCache]: Analyzing trace with hash -191058054, now seen corresponding path program 1 times [2021-08-27 17:12:19,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:12:19,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522794262] [2021-08-27 17:12:19,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:12:19,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:12:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:12:19,718 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 17:12:19,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:12:19,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522794262] [2021-08-27 17:12:19,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522794262] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:12:19,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:12:19,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 17:12:19,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814010358] [2021-08-27 17:12:19,722 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 17:12:19,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:12:19,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 17:12:19,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 17:12:19,723 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 17:12:19,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:12:19,776 INFO L93 Difference]: Finished difference Result 140 states and 233 transitions. [2021-08-27 17:12:19,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 17:12:19,777 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 233 transitions. [2021-08-27 17:12:19,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-08-27 17:12:19,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 137 states and 201 transitions. [2021-08-27 17:12:19,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2021-08-27 17:12:19,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 137 [2021-08-27 17:12:19,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 201 transitions. [2021-08-27 17:12:19,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:12:19,780 INFO L681 BuchiCegarLoop]: Abstraction has 137 states and 201 transitions. [2021-08-27 17:12:19,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 201 transitions. [2021-08-27 17:12:19,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-08-27 17:12:19,784 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 17:12:19,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 201 transitions. [2021-08-27 17:12:19,784 INFO L704 BuchiCegarLoop]: Abstraction has 137 states and 201 transitions. [2021-08-27 17:12:19,785 INFO L587 BuchiCegarLoop]: Abstraction has 137 states and 201 transitions. [2021-08-27 17:12:19,785 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 17:12:19,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 201 transitions. [2021-08-27 17:12:19,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-08-27 17:12:19,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:12:19,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:12:19,787 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 17:12:19,787 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 17:12:19,787 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 17:12:19,788 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 < 2); 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 17:12:19,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:19,788 INFO L82 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 1 times [2021-08-27 17:12:19,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:12:19,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080461812] [2021-08-27 17:12:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:12:19,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:12:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:12:19,817 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:12:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:12:19,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:12:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:19,865 INFO L82 PathProgramCache]: Analyzing trace with hash -191058054, now seen corresponding path program 2 times [2021-08-27 17:12:19,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:12:19,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583945779] [2021-08-27 17:12:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:12:19,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:12:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:12:19,903 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 17:12:19,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:12:19,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583945779] [2021-08-27 17:12:19,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583945779] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:12:19,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:12:19,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 17:12:19,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245806318] [2021-08-27 17:12:19,904 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 17:12:19,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:12:19,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 17:12:19,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 17:12:19,904 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 17:12:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:12:19,944 INFO L93 Difference]: Finished difference Result 194 states and 287 transitions. [2021-08-27 17:12:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 17:12:19,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 287 transitions. [2021-08-27 17:12:19,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 134 [2021-08-27 17:12:19,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 287 transitions. [2021-08-27 17:12:19,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-08-27 17:12:19,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2021-08-27 17:12:19,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 287 transitions. [2021-08-27 17:12:19,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:12:19,948 INFO L681 BuchiCegarLoop]: Abstraction has 194 states and 287 transitions. [2021-08-27 17:12:19,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 287 transitions. [2021-08-27 17:12:19,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-08-27 17:12:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 194 states have (on average 1.4793814432989691) internal successors, (287), 193 states have internal predecessors, (287), 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 17:12:19,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 287 transitions. [2021-08-27 17:12:19,953 INFO L704 BuchiCegarLoop]: Abstraction has 194 states and 287 transitions. [2021-08-27 17:12:19,953 INFO L587 BuchiCegarLoop]: Abstraction has 194 states and 287 transitions. [2021-08-27 17:12:19,953 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 17:12:19,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 287 transitions. [2021-08-27 17:12:19,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 134 [2021-08-27 17:12:19,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:12:19,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:12:19,955 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 17:12:19,955 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, 1, 1] [2021-08-27 17:12:19,955 INFO L791 eck$LassoCheckResult]: Stem: 1065#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]; 992#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; 993#L259 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 972#L262-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 973#L272 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 934#L275-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1062#L285 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 975#L288-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 980#L298 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 981#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; 996#L314-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 952#L324 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 954#L327-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1039#L337 assume ~id1~0 != ~id2~0; 1005#L338 assume ~id1~0 != ~id3~0; 1006#L339 assume ~id2~0 != ~id3~0; 1055#L340 assume ~id1~0 >= 0; 1049#L341 assume ~id2~0 >= 0; 988#L342 assume ~id3~0 >= 0; 989#L343 assume 0 == ~r1~0; 983#L344 assume 0 == ~r2~0; 984#L345 assume 0 == ~r3~0; 997#L346 assume 0 != init_~r122~0 % 256; 998#L347 assume 0 != init_~r132~0 % 256; 1061#L348 assume 0 != init_~r212~0 % 256; 1045#L349 assume 0 != init_~r232~0 % 256; 1046#L350 assume 0 != init_~r312~0 % 256; 1032#L351 assume 0 != init_~r322~0 % 256; 1033#L352 assume ~max1~0 == ~id1~0; 1051#L353 assume ~max2~0 == ~id2~0; 1017#L354 assume ~max3~0 == ~id3~0; 990#L355 assume 0 == ~st1~0; 991#L356 assume 0 == ~st2~0; 1015#L357 assume 0 == ~st3~0; 947#L358 assume 0 == ~nl1~0; 948#L359 assume 0 == ~nl2~0; 957#L360 assume 0 == ~nl3~0; 958#L361 assume 0 == ~mode1~0 % 256; 1038#L362 assume 0 == ~mode2~0 % 256; 1074#L363 assume 0 == ~mode3~0 % 256; 1075#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; 1058#L337-1 init_#res := init_~tmp___5~0; 1057#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; 1052#L21 assume !(0 == assume_abort_if_not_~cond); 955#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; 956#L569-2 [2021-08-27 17:12:19,955 INFO L793 eck$LassoCheckResult]: Loop: 956#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; 1079#L82 assume !(0 != ~mode1~0 % 256); 1078#L110 assume ~r1~0 < 2; 962#L111 assume !(0 != ~ep12~0 % 256); 963#L111-1 assume !(0 != ~ep13~0 % 256); 939#L110-1 ~mode1~0 := 1; 966#L82-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 1115#L133 assume !(0 != ~mode2~0 % 256); 1112#L161 assume !(~r2~0 < 2); 1102#L161-1 ~mode2~0 := 1; 1100#L133-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 1098#L184 assume !(0 != ~mode3~0 % 256); 1092#L212 assume !(~r3~0 < 2); 1090#L212-1 ~mode3~0 := 1; 1089#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; 1088#L466 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1087#L467 assume ~st1~0 + ~nl1~0 <= 1; 1086#L468 assume ~st2~0 + ~nl2~0 <= 1; 1085#L469 assume ~st3~0 + ~nl3~0 <= 1; 1084#L470 assume !(~r1~0 >= 2); 1069#L473 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 1070#L474 assume ~r1~0 < 2; 1077#L479 assume !(~r1~0 >= 2); 1053#L483 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 1054#L484 assume ~r1~0 < 2;check_~tmp~1 := 1; 1083#L466-1 check_#res := check_~tmp~1; 1082#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; 1081#L599 assume !(0 == assert_~arg % 256); 1080#L594 main_#t~post45 := main_~i2~0;main_~i2~0 := 1 + main_#t~post45;havoc main_#t~post45; 956#L569-2 [2021-08-27 17:12:19,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:19,955 INFO L82 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 2 times [2021-08-27 17:12:19,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:12:19,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591829573] [2021-08-27 17:12:19,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:12:19,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:12:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:12:19,998 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:12:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:12:20,045 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:12:20,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:20,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1983288549, now seen corresponding path program 1 times [2021-08-27 17:12:20,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:12:20,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122174462] [2021-08-27 17:12:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:12:20,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:12:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:12:20,058 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:12:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:12:20,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:12:20,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:20,068 INFO L82 PathProgramCache]: Analyzing trace with hash 2100705208, now seen corresponding path program 1 times [2021-08-27 17:12:20,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:12:20,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867531073] [2021-08-27 17:12:20,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:12:20,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:12:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:12:20,101 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 17:12:20,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 17:12:20,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867531073] [2021-08-27 17:12:20,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867531073] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 17:12:20,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 17:12:20,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 17:12:20,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467929364] [2021-08-27 17:12:20,719 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:12:20,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:12:20,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:12:20,723 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:12:20,723 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 17:12:20,723 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:20,724 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:12:20,724 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:12:20,724 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-08-27 17:12:20,724 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:12:20,724 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:12:20,739 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 17:12:20,743 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 17:12:20,747 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 17:12:20,749 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 17:12:20,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:20,759 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 17:12:20,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:20,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:20,769 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 17:12:20,771 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 17:12:20,773 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 17:12:20,775 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 17:12:20,777 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 17:12:20,779 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 17:12:20,781 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 17:12:20,782 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 17:12:20,787 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 17:12:20,790 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 17:12:20,792 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 17:12:20,796 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 17:12:20,798 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 17:12:20,821 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 17:12:20,823 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 17:12:20,834 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 17:12:20,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:20,839 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 17:12:20,841 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 17:12:20,843 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 17:12:20,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:20,847 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 17:12:21,186 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:12:21,190 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 17:12:21,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:21,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:21,222 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 17:12:21,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 17:12:21,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 17:12:21,296 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 17:12:21,321 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 17:12:21,321 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~ep12~0=0} Honda state: {~ep12~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 17:12:21,365 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 17:12:21,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:21,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:21,381 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 17:12:21,422 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 17:12:21,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 17:12:21,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 17:12:21,461 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 17:12:21,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:21,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:21,462 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 17:12:21,463 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 17:12:21,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 17:12:21,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 17:12:21,547 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 17:12:21,552 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 17:12:21,553 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:12:21,553 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:12:21,553 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:12:21,553 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:12:21,553 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:12:21,553 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:21,553 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:12:21,553 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:12:21,553 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-08-27 17:12:21,553 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:12:21,553 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:12:21,556 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 17:12:21,562 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 17:12:21,567 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 17:12:21,569 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 17:12:21,578 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 17:12:21,581 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 17:12:21,583 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 17:12:21,585 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 17:12:21,587 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 17:12:21,592 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 17:12:21,594 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 17:12:21,596 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 17:12:21,599 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 17:12:21,601 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 17:12:21,603 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 17:12:21,607 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 17:12:21,608 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 17:12:21,613 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 17:12:21,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:21,620 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 17:12:21,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:21,624 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 17:12:21,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:21,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:21,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:21,634 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 17:12:21,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:12:21,637 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 17:12:21,639 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 17:12:21,665 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 17:12:22,036 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:12:22,040 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:12:22,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,042 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 17:12:22,043 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 17:12:22,045 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 17:12:22,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,090 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 17:12:22,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,091 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 17:12:22,092 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 17:12:22,093 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 17:12:22,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,133 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 17:12:22,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,134 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 17:12:22,135 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 17:12:22,136 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 17:12:22,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:12:22,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:12:22,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 17:12:22,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,178 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 17:12:22,179 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 17:12:22,180 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 17:12:22,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,220 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 17:12:22,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,221 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 17:12:22,222 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 17:12:22,223 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 17:12:22,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,246 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,264 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 17:12:22,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,265 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 17:12:22,266 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 17:12:22,267 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 17:12:22,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,312 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 17:12:22,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,313 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 17:12:22,324 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 17:12:22,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,334 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 17:12:22,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,358 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 17:12:22,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,359 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 17:12:22,360 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 17:12:22,361 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 17:12:22,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:12:22,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:12:22,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,416 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 17:12:22,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,418 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 17:12:22,418 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 17:12:22,419 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 17:12:22,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,446 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 17:12:22,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,447 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 17:12:22,448 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 17:12:22,449 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 17:12:22,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,482 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 17:12:22,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,483 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 17:12:22,486 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 17:12:22,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,495 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 17:12:22,504 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,519 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 17:12:22,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,520 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 17:12:22,521 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 17:12:22,522 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 17:12:22,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,545 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 17:12:22,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,547 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 17:12:22,549 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 17:12:22,550 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 17:12:22,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 17:12:22,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 17:12:22,574 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-08-27 17:12:22,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,598 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 17:12:22,599 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 17:12:22,600 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 17:12:22,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,623 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 17:12:22,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,624 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 17:12:22,625 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 17:12:22,626 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 17:12:22,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,653 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 17:12:22,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,655 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 17:12:22,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 17:12:22,658 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 17:12:22,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 17:12:22,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-27 17:12:22,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,685 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 17:12:22,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 17:12:22,687 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 17:12:22,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:12:22,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:12:22,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:12:22,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:12:22,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:12:22,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:12:22,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:12:22,716 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:12:22,719 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 17:12:22,719 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 17:12:22,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:12:22,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:12:22,721 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 17:12:22,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 17:12:22,736 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:12:22,736 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 17:12:22,736 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:12:22,737 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 17:12:22,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-27 17:12:22,762 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 17:12:22,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:12:22,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-27 17:12:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:12:22,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 17:12:22,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:12:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:12:23,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 17:12:23,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:12:23,198 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 17:12:23,201 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 17:12:23,202 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 194 states and 287 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 17:12:23,232 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 194 states and 287 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 327 states and 496 transitions. Complement of second has 4 states. [2021-08-27 17:12:23,232 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 17:12:23,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 17:12:23,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2021-08-27 17:12:23,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 201 transitions. Stem has 48 letters. Loop has 29 letters. [2021-08-27 17:12:23,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:12:23,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 201 transitions. Stem has 77 letters. Loop has 29 letters. [2021-08-27 17:12:23,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:12:23,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 201 transitions. Stem has 48 letters. Loop has 58 letters. [2021-08-27 17:12:23,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:12:23,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 496 transitions. [2021-08-27 17:12:23,238 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:12:23,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 0 states and 0 transitions. [2021-08-27 17:12:23,238 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 17:12:23,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 17:12:23,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 17:12:23,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:12:23,239 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:12:23,239 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:12:23,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 17:12:23,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 17:12:23,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 17:12:23,239 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 17:12:23,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 17:12:23,240 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-27 17:12:23,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 17:12:23,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-27 17:12:23,240 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:12:23,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 17:12:23,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 17:12:23,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 17:12:23,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 17:12:23,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:12:23,240 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:12:23,241 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:12:23,241 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:12:23,241 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 17:12:23,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 17:12:23,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:12:23,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 17:12:23,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 05:12:23 BoogieIcfgContainer [2021-08-27 17:12:23,244 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 17:12:23,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 17:12:23,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 17:12:23,245 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 17:12:23,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:12:19" (3/4) ... [2021-08-27 17:12:23,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 17:12:23,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 17:12:23,248 INFO L168 Benchmark]: Toolchain (without parser) took 5259.13 ms. Allocated memory was 60.8 MB in the beginning and 159.4 MB in the end (delta: 98.6 MB). Free memory was 39.0 MB in the beginning and 109.0 MB in the end (delta: -70.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-08-27 17:12:23,248 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:12:23,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.94 ms. Allocated memory is still 60.8 MB. Free memory was 38.8 MB in the beginning and 39.5 MB in the end (delta: -705.1 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 17:12:23,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.20 ms. Allocated memory is still 60.8 MB. Free memory was 39.5 MB in the beginning and 36.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 17:12:23,249 INFO L168 Benchmark]: Boogie Preprocessor took 50.21 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 34.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 17:12:23,249 INFO L168 Benchmark]: RCFGBuilder took 638.61 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 34.1 MB in the beginning and 39.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-08-27 17:12:23,250 INFO L168 Benchmark]: BuchiAutomizer took 4202.86 ms. Allocated memory was 81.8 MB in the beginning and 159.4 MB in the end (delta: 77.6 MB). Free memory was 39.5 MB in the beginning and 109.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-08-27 17:12:23,250 INFO L168 Benchmark]: Witness Printer took 2.28 ms. Allocated memory is still 159.4 MB. Free memory is still 109.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:12:23,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.94 ms. Allocated memory is still 60.8 MB. Free memory was 38.8 MB in the beginning and 39.5 MB in the end (delta: -705.1 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.20 ms. Allocated memory is still 60.8 MB. Free memory was 39.5 MB in the beginning and 36.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.21 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 34.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 638.61 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 34.1 MB in the beginning and 39.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4202.86 ms. Allocated memory was 81.8 MB in the beginning and 159.4 MB in the end (delta: 77.6 MB). Free memory was 39.5 MB in the beginning and 109.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.28 ms. Allocated memory is still 159.4 MB. Free memory is still 109.0 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 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 21.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 194 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 868 SDtfs, 400 SDslu, 1671 SDs, 0 SdLazy, 46 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital140 mio100 ax125 hnf106 lsp20 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 17:12:23,276 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...