./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf 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_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 204191ead1587ea90112b625e2d6c8601a1f61e6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 04:23:44,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 04:23:44,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 04:23:44,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 04:23:44,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 04:23:44,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 04:23:44,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 04:23:44,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 04:23:44,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 04:23:44,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 04:23:44,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 04:23:44,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 04:23:44,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 04:23:44,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 04:23:44,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 04:23:44,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 04:23:44,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 04:23:44,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 04:23:44,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 04:23:44,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 04:23:44,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 04:23:44,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 04:23:44,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 04:23:44,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 04:23:44,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 04:23:44,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 04:23:44,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 04:23:44,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 04:23:44,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 04:23:44,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 04:23:44,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 04:23:44,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 04:23:44,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 04:23:44,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 04:23:44,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 04:23:44,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 04:23:44,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 04:23:44,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 04:23:44,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 04:23:44,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 04:23:44,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 04:23:44,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 04:23:44,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 04:23:44,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 04:23:44,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 04:23:44,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 04:23:44,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 04:23:44,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 04:23:44,643 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 04:23:44,643 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 04:23:44,644 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 04:23:44,644 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 04:23:44,644 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 04:23:44,645 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 04:23:44,645 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 04:23:44,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 04:23:44,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 04:23:44,645 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 04:23:44,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 04:23:44,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 04:23:44,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 04:23:44,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 04:23:44,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 04:23:44,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 04:23:44,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 04:23:44,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 04:23:44,647 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 04:23:44,647 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 04:23:44,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 04:23:44,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 04:23:44,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 04:23:44,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 04:23:44,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 04:23:44,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 04:23:44,649 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 04:23:44,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 204191ead1587ea90112b625e2d6c8601a1f61e6 [2021-08-31 04:23:44,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 04:23:45,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 04:23:45,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 04:23:45,007 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 04:23:45,008 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 04:23:45,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-08-31 04:23:45,075 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f818c7a8/e8a2d76558b34af39da3ceff7868aa0d/FLAG64e7e3a05 [2021-08-31 04:23:45,508 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 04:23:45,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-08-31 04:23:45,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f818c7a8/e8a2d76558b34af39da3ceff7868aa0d/FLAG64e7e3a05 [2021-08-31 04:23:45,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f818c7a8/e8a2d76558b34af39da3ceff7868aa0d [2021-08-31 04:23:45,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 04:23:45,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 04:23:45,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 04:23:45,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 04:23:45,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 04:23:45,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:45,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423370a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45, skipping insertion in model container [2021-08-31 04:23:45,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:45,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 04:23:45,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 04:23:45,772 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_floodmax.3.2.ufo.BOUNDED-6.pals.c[12835,12848] [2021-08-31 04:23:45,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:23:45,790 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 04:23:45,870 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_floodmax.3.2.ufo.BOUNDED-6.pals.c[12835,12848] [2021-08-31 04:23:45,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:23:45,895 INFO L208 MainTranslator]: Completed translation [2021-08-31 04:23:45,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45 WrapperNode [2021-08-31 04:23:45,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 04:23:45,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 04:23:45,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 04:23:45,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 04:23:45,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:45,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:45,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 04:23:45,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 04:23:45,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 04:23:45,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 04:23:45,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:45,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:45,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:45,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:46,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:46,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:46,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:46,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 04:23:46,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 04:23:46,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 04:23:46,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 04:23:46,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (1/1) ... [2021-08-31 04:23:46,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:46,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:46,056 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) [2021-08-31 04:23:46,060 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 [2021-08-31 04:23:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 04:23:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 04:23:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 04:23:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 04:23:46,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 04:23:46,450 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-08-31 04:23:46,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:23:46 BoogieIcfgContainer [2021-08-31 04:23:46,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 04:23:46,453 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 04:23:46,453 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 04:23:46,456 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 04:23:46,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:23:46,457 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 04:23:45" (1/3) ... [2021-08-31 04:23:46,458 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3be90153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:23:46, skipping insertion in model container [2021-08-31 04:23:46,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:23:46,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:23:45" (2/3) ... [2021-08-31 04:23:46,459 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3be90153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:23:46, skipping insertion in model container [2021-08-31 04:23:46,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:23:46,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:23:46" (3/3) ... [2021-08-31 04:23:46,461 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-08-31 04:23:46,507 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 04:23:46,508 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 04:23:46,508 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 04:23:46,508 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 04:23:46,508 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 04:23:46,508 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 04:23:46,508 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 04:23:46,508 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 04:23:46,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 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) [2021-08-31 04:23:46,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-08-31 04:23:46,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:23:46,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:23:46,576 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] [2021-08-31 04:23:46,576 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:23:46,576 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 04:23:46,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 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) [2021-08-31 04:23:46,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-08-31 04:23:46,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:23:46,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:23:46,595 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] [2021-08-31 04:23:46,595 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:23:46,601 INFO L791 eck$LassoCheckResult]: Stem: 118#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(39);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;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 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]; 50#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~ret40, main_#t~ret41, main_#t~post42, 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;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;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; 128#L229true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 104#L232-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 129#L242true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 36#L245-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 19#L255true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 14#L258-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 24#L268true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 26#L271-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 16#L281true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 59#L284-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 112#L294true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 42#L297-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 87#L307true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 31#L307-1true init_#res := init_~tmp___5~0; 20#L416true main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 91#L510true assume !(0 == main_~i2~0); 8#L510-2true ~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; 102#L524-2true [2021-08-31 04:23:46,601 INFO L793 eck$LassoCheckResult]: Loop: 102#L524-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 71#L75true assume !(0 != ~mode1~0 % 256); 67#L100true assume !(~r1~0 < 2); 85#L100-1true ~mode1~0 := 1; 116#L75-2true havoc node2_#t~ite9, node2_#t~ite10; 100#L118true assume !(0 != ~mode2~0 % 256); 101#L143true assume !(~r2~0 < 2); 94#L143-1true ~mode2~0 := 1; 68#L118-2true havoc node3_#t~ite11, node3_#t~ite12; 15#L161true assume !(0 != ~mode3~0 % 256); 75#L186true assume !(~r3~0 < 2); 30#L186-1true ~mode3~0 := 1; 6#L161-2true ~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; 110#L424true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 124#L424-1true check_#res := check_~tmp~1; 45#L472true main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 132#L554true assume !(0 == assert_~arg % 256); 58#L549true main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 102#L524-2true [2021-08-31 04:23:46,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:46,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 1 times [2021-08-31 04:23:46,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:23:46,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509375511] [2021-08-31 04:23:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:23:46,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:23:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:23:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:23:46,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:23:46,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509375511] [2021-08-31 04:23:46,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509375511] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:23:46,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:23:46,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 04:23:46,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142349344] [2021-08-31 04:23:46,946 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 04:23:46,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:46,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1518597457, now seen corresponding path program 1 times [2021-08-31 04:23:46,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:23:46,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796295035] [2021-08-31 04:23:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:23:46,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:23:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:23:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:23:47,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:23:47,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796295035] [2021-08-31 04:23:47,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796295035] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:23:47,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:23:47,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 04:23:47,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556189200] [2021-08-31 04:23:47,107 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:23:47,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:23:47,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 04:23:47,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 04:23:47,139 INFO L87 Difference]: Start difference. First operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 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) [2021-08-31 04:23:47,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:23:47,845 INFO L93 Difference]: Finished difference Result 134 states and 226 transitions. [2021-08-31 04:23:47,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-31 04:23:47,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 226 transitions. [2021-08-31 04:23:47,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-08-31 04:23:47,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 125 states and 210 transitions. [2021-08-31 04:23:47,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2021-08-31 04:23:47,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2021-08-31 04:23:47,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 210 transitions. [2021-08-31 04:23:47,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:23:47,861 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-08-31 04:23:47,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 210 transitions. [2021-08-31 04:23:47,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-08-31 04:23:47,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.68) internal successors, (210), 124 states have internal predecessors, (210), 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) [2021-08-31 04:23:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 210 transitions. [2021-08-31 04:23:47,897 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-08-31 04:23:47,897 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-08-31 04:23:47,898 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 04:23:47,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 210 transitions. [2021-08-31 04:23:47,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-08-31 04:23:47,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:23:47,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:23:47,903 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] [2021-08-31 04:23:47,903 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] [2021-08-31 04:23:47,903 INFO L791 eck$LassoCheckResult]: Stem: 404#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(39);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;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 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]; 358#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~ret40, main_#t~ret41, main_#t~post42, 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;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;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; 359#L229 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 385#L232-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 397#L242 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 339#L245-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 315#L255 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 305#L258-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 306#L268 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 326#L271-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 310#L281 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 311#L284-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 370#L294 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 347#L297-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 349#L307 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 284#L307-1 init_#res := init_~tmp___5~0; 317#L416 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 318#L510 assume !(0 == main_~i2~0); 292#L510-2 ~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; 293#L524-2 [2021-08-31 04:23:47,904 INFO L793 eck$LassoCheckResult]: Loop: 293#L524-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 380#L75 assume !(0 != ~mode1~0 % 256); 377#L100 assume !(~r1~0 < 2); 360#L100-1 ~mode1~0 := 1; 331#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 395#L118 assume !(0 != ~mode2~0 % 256); 396#L143 assume !(~r2~0 < 2); 356#L143-1 ~mode2~0 := 1; 379#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 307#L161 assume !(0 != ~mode3~0 % 256); 309#L186 assume !(~r3~0 < 2); 334#L186-1 ~mode3~0 := 1; 290#L161-2 ~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; 291#L424 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 400#L425 assume ~st1~0 + ~nl1~0 <= 1; 401#L426 assume ~st2~0 + ~nl2~0 <= 1; 393#L427 assume ~st3~0 + ~nl3~0 <= 1; 394#L428 assume ~r1~0 >= 2; 392#L432 assume ~r1~0 < 2; 287#L437 assume ~r1~0 >= 2; 289#L442 assume ~r1~0 < 2;check_~tmp~1 := 1; 335#L424-1 check_#res := check_~tmp~1; 354#L472 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 355#L554 assume !(0 == assert_~arg % 256); 369#L549 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 293#L524-2 [2021-08-31 04:23:47,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:47,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 2 times [2021-08-31 04:23:47,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:23:47,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427734280] [2021-08-31 04:23:47,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:23:47,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:23:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:23:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:23:47,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:23:47,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427734280] [2021-08-31 04:23:47,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427734280] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:23:48,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:23:48,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 04:23:48,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066551729] [2021-08-31 04:23:48,002 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 04:23:48,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:48,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1802356988, now seen corresponding path program 1 times [2021-08-31 04:23:48,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:23:48,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442968504] [2021-08-31 04:23:48,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:23:48,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:23:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:23:48,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:23:48,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:23:48,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442968504] [2021-08-31 04:23:48,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442968504] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:23:48,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:23:48,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:23:48,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448735032] [2021-08-31 04:23:48,058 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:23:48,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:23:48,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 04:23:48,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 04:23:48,060 INFO L87 Difference]: Start difference. First operand 125 states and 210 transitions. cyclomatic complexity: 86 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) [2021-08-31 04:23:48,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:23:48,602 INFO L93 Difference]: Finished difference Result 196 states and 320 transitions. [2021-08-31 04:23:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 04:23:48,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 320 transitions. [2021-08-31 04:23:48,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-08-31 04:23:48,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 193 states and 291 transitions. [2021-08-31 04:23:48,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 193 [2021-08-31 04:23:48,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2021-08-31 04:23:48,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 193 states and 291 transitions. [2021-08-31 04:23:48,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:23:48,608 INFO L681 BuchiCegarLoop]: Abstraction has 193 states and 291 transitions. [2021-08-31 04:23:48,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states and 291 transitions. [2021-08-31 04:23:48,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 125. [2021-08-31 04:23:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.464) internal successors, (183), 124 states have internal predecessors, (183), 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) [2021-08-31 04:23:48,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2021-08-31 04:23:48,619 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2021-08-31 04:23:48,619 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2021-08-31 04:23:48,619 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 04:23:48,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 183 transitions. [2021-08-31 04:23:48,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-08-31 04:23:48,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:23:48,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:23:48,626 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] [2021-08-31 04:23:48,626 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] [2021-08-31 04:23:48,626 INFO L791 eck$LassoCheckResult]: Stem: 738#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(39);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;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 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]; 692#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~ret40, main_#t~ret41, main_#t~post42, 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;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;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; 693#L229 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 719#L232-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 731#L242 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 673#L245-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 648#L255 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 638#L258-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 639#L268 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 659#L271-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 643#L281 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 644#L284-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 704#L294 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 681#L297-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 683#L307 assume ~id1~0 != ~id2~0; 636#L308 assume ~id1~0 != ~id3~0; 637#L309 assume ~id2~0 != ~id3~0; 723#L310 assume ~id1~0 >= 0; 705#L311 assume ~id2~0 >= 0; 706#L312 assume ~id3~0 >= 0; 665#L313 assume 0 == ~r1~0; 666#L314 assume 0 == ~r2~0; 697#L315 assume 0 == ~r3~0; 698#L316 assume 0 != init_~r122~0 % 256; 618#L317 assume 0 != init_~r132~0 % 256; 619#L318 assume 0 != init_~r212~0 % 256; 739#L319 assume 0 != init_~r232~0 % 256; 725#L320 assume 0 != init_~r312~0 % 256; 720#L321 assume 0 != init_~r322~0 % 256; 721#L322 assume ~max1~0 == ~id1~0; 616#L323 assume ~max2~0 == ~id2~0; 617#L324 assume ~max3~0 == ~id3~0; 646#L325 assume 0 == ~st1~0; 675#L326 assume 0 == ~st2~0; 657#L327 assume 0 == ~st3~0; 658#L328 assume 0 == ~nl1~0; 688#L329 assume 0 == ~nl2~0; 689#L330 assume 0 == ~nl3~0; 634#L331 assume 0 == ~mode1~0 % 256; 635#L332 assume 0 == ~mode2~0 % 256; 671#L333 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 668#L307-1 init_#res := init_~tmp___5~0; 650#L416 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 651#L510 assume !(0 == main_~i2~0); 625#L510-2 ~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; 626#L524-2 [2021-08-31 04:23:48,632 INFO L793 eck$LassoCheckResult]: Loop: 626#L524-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 714#L75 assume !(0 != ~mode1~0 % 256); 711#L100 assume !(~r1~0 < 2); 694#L100-1 ~mode1~0 := 1; 664#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 729#L118 assume !(0 != ~mode2~0 % 256); 730#L143 assume !(~r2~0 < 2); 690#L143-1 ~mode2~0 := 1; 713#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 640#L161 assume !(0 != ~mode3~0 % 256); 642#L186 assume !(~r3~0 < 2); 667#L186-1 ~mode3~0 := 1; 620#L161-2 ~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; 621#L424 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 734#L425 assume ~st1~0 + ~nl1~0 <= 1; 735#L426 assume ~st2~0 + ~nl2~0 <= 1; 727#L427 assume ~st3~0 + ~nl3~0 <= 1; 728#L428 assume ~r1~0 >= 2; 726#L432 assume ~r1~0 < 2; 622#L437 assume ~r1~0 >= 2; 624#L442 assume ~r1~0 < 2;check_~tmp~1 := 1; 669#L424-1 check_#res := check_~tmp~1; 686#L472 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 687#L554 assume !(0 == assert_~arg % 256); 703#L549 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 626#L524-2 [2021-08-31 04:23:48,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:48,633 INFO L82 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 1 times [2021-08-31 04:23:48,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:23:48,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803157566] [2021-08-31 04:23:48,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:23:48,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:23:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:23:48,694 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:23:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:23:48,765 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:23:48,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:48,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1802356988, now seen corresponding path program 2 times [2021-08-31 04:23:48,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:23:48,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775771185] [2021-08-31 04:23:48,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:23:48,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:23:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:23:48,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:23:48,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:23:48,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775771185] [2021-08-31 04:23:48,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775771185] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:23:48,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:23:48,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:23:48,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863117729] [2021-08-31 04:23:48,795 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:23:48,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:23:48,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:23:48,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:23:48,796 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. cyclomatic complexity: 59 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) [2021-08-31 04:23:49,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:23:49,105 INFO L93 Difference]: Finished difference Result 176 states and 259 transitions. [2021-08-31 04:23:49,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 04:23:49,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 259 transitions. [2021-08-31 04:23:49,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 119 [2021-08-31 04:23:49,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 176 states and 259 transitions. [2021-08-31 04:23:49,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 176 [2021-08-31 04:23:49,109 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 176 [2021-08-31 04:23:49,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 176 states and 259 transitions. [2021-08-31 04:23:49,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:23:49,110 INFO L681 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2021-08-31 04:23:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states and 259 transitions. [2021-08-31 04:23:49,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-08-31 04:23:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 176 states have (on average 1.4715909090909092) internal successors, (259), 175 states have internal predecessors, (259), 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) [2021-08-31 04:23:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 259 transitions. [2021-08-31 04:23:49,119 INFO L704 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2021-08-31 04:23:49,119 INFO L587 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2021-08-31 04:23:49,120 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 04:23:49,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 176 states and 259 transitions. [2021-08-31 04:23:49,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 119 [2021-08-31 04:23:49,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:23:49,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:23:49,138 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] [2021-08-31 04:23:49,138 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] [2021-08-31 04:23:49,138 INFO L791 eck$LassoCheckResult]: Stem: 1050#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(39);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;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 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]; 1000#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~ret40, main_#t~ret41, main_#t~post42, 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;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;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; 1001#L229 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1029#L232-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1043#L242 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 982#L245-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 957#L255 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 944#L258-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 945#L268 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 968#L271-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 949#L281 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 950#L284-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1014#L294 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 989#L297-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 991#L307 assume ~id1~0 != ~id2~0; 942#L308 assume ~id1~0 != ~id3~0; 943#L309 assume ~id2~0 != ~id3~0; 1033#L310 assume ~id1~0 >= 0; 1015#L311 assume ~id2~0 >= 0; 1016#L312 assume ~id3~0 >= 0; 974#L313 assume 0 == ~r1~0; 975#L314 assume 0 == ~r2~0; 1003#L315 assume 0 == ~r3~0; 1004#L316 assume 0 != init_~r122~0 % 256; 925#L317 assume 0 != init_~r132~0 % 256; 926#L318 assume 0 != init_~r212~0 % 256; 1053#L319 assume 0 != init_~r232~0 % 256; 1036#L320 assume 0 != init_~r312~0 % 256; 1030#L321 assume 0 != init_~r322~0 % 256; 1031#L322 assume ~max1~0 == ~id1~0; 923#L323 assume ~max2~0 == ~id2~0; 924#L324 assume ~max3~0 == ~id3~0; 952#L325 assume 0 == ~st1~0; 980#L326 assume 0 == ~st2~0; 964#L327 assume 0 == ~st3~0; 965#L328 assume 0 == ~nl1~0; 994#L329 assume 0 == ~nl2~0; 995#L330 assume 0 == ~nl3~0; 940#L331 assume 0 == ~mode1~0 % 256; 941#L332 assume 0 == ~mode2~0 % 256; 979#L333 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 977#L307-1 init_#res := init_~tmp___5~0; 955#L416 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 956#L510 assume !(0 == main_~i2~0); 931#L510-2 ~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; 932#L524-2 [2021-08-31 04:23:49,139 INFO L793 eck$LassoCheckResult]: Loop: 932#L524-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 1058#L75 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256); 1025#L77 assume !(0 != ~ep21~0 % 256); 939#L77-1 assume !(0 != ~ep31~0 % 256); 1020#L84 assume !(1 == ~r1~0); 972#L91 ~mode1~0 := 0; 973#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 1093#L118 assume !(0 != ~mode2~0 % 256); 1089#L143 assume !(~r2~0 < 2); 1085#L143-1 ~mode2~0 := 1; 1083#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 1079#L161 assume !(0 != ~mode3~0 % 256); 1077#L186 assume !(~r3~0 < 2); 1071#L186-1 ~mode3~0 := 1; 1069#L161-2 ~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; 1068#L424 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1067#L425 assume ~st1~0 + ~nl1~0 <= 1; 1066#L426 assume ~st2~0 + ~nl2~0 <= 1; 1065#L427 assume ~st3~0 + ~nl3~0 <= 1; 1064#L428 assume !(~r1~0 >= 2); 1054#L431 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 1055#L432 assume ~r1~0 < 2; 1063#L437 assume !(~r1~0 >= 2); 966#L441 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 967#L442 assume ~r1~0 < 2;check_~tmp~1 := 1; 1062#L424-1 check_#res := check_~tmp~1; 1061#L472 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1060#L554 assume !(0 == assert_~arg % 256); 1059#L549 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 932#L524-2 [2021-08-31 04:23:49,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:49,139 INFO L82 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 2 times [2021-08-31 04:23:49,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:23:49,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469430170] [2021-08-31 04:23:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:23:49,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:23:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:23:49,177 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:23:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:23:49,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:23:49,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:49,212 INFO L82 PathProgramCache]: Analyzing trace with hash 253975039, now seen corresponding path program 1 times [2021-08-31 04:23:49,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:23:49,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171369857] [2021-08-31 04:23:49,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:23:49,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:23:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:23:49,219 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:23:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:23:49,229 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:23:49,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:49,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1206422721, now seen corresponding path program 1 times [2021-08-31 04:23:49,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:23:49,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226779765] [2021-08-31 04:23:49,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:23:49,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:23:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:23:49,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:23:49,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:23:49,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226779765] [2021-08-31 04:23:49,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226779765] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:23:49,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:23:49,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:23:49,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564831818] [2021-08-31 04:23:49,975 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 04:23:49,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 04:23:49,976 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 04:23:49,976 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 04:23:49,976 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 04:23:49,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:49,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 04:23:49,976 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 04:23:49,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-08-31 04:23:49,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 04:23:49,977 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 04:23:49,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,543 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 04:23:50,543 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 04:23:50,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:50,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:50,553 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) [2021-08-31 04:23:50,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:23:50,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:23:50,573 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 [2021-08-31 04:23:50,606 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 [2021-08-31 04:23:50,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:50,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:50,608 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) [2021-08-31 04:23:50,608 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 [2021-08-31 04:23:50,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 04:23:50,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:23:50,727 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 04:23:50,733 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 [2021-08-31 04:23:50,733 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 04:23:50,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 04:23:50,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 04:23:50,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 04:23:50,733 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 04:23:50,733 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:50,733 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 04:23:50,733 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 04:23:50,733 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-08-31 04:23:50,733 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 04:23:50,733 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 04:23:50,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:50,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:23:51,240 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 04:23:51,243 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 04:23:51,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,249 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) [2021-08-31 04:23:51,250 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 [2021-08-31 04:23:51,251 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 [2021-08-31 04:23:51,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:23:51,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:23:51,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:23:51,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,282 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 [2021-08-31 04:23:51,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,283 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) [2021-08-31 04:23:51,284 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 [2021-08-31 04:23:51,285 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 [2021-08-31 04:23:51,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 04:23:51,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 04:23:51,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,349 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 [2021-08-31 04:23:51,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,357 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) [2021-08-31 04:23:51,363 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 [2021-08-31 04:23:51,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:23:51,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:23:51,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:23:51,374 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 [2021-08-31 04:23:51,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,407 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 [2021-08-31 04:23:51,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,409 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) [2021-08-31 04:23:51,409 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 [2021-08-31 04:23:51,410 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 [2021-08-31 04:23:51,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:23:51,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:23:51,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:23:51,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,440 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 [2021-08-31 04:23:51,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,441 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) [2021-08-31 04:23:51,441 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 [2021-08-31 04:23:51,445 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 [2021-08-31 04:23:51,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:23:51,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:23:51,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:23:51,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-08-31 04:23:51,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,473 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) [2021-08-31 04:23:51,474 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 [2021-08-31 04:23:51,475 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 [2021-08-31 04:23:51,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:23:51,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:23:51,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:23:51,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-08-31 04:23:51,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,502 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) [2021-08-31 04:23:51,503 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 [2021-08-31 04:23:51,504 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 [2021-08-31 04:23:51,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:23:51,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:23:51,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:23:51,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,528 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 [2021-08-31 04:23:51,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,529 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) [2021-08-31 04:23:51,530 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 [2021-08-31 04:23:51,530 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 [2021-08-31 04:23:51,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 04:23:51,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 04:23:51,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-08-31 04:23:51,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,585 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) [2021-08-31 04:23:51,586 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 [2021-08-31 04:23:51,587 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 [2021-08-31 04:23:51,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:23:51,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:23:51,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:23:51,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,653 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 [2021-08-31 04:23:51,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,654 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) [2021-08-31 04:23:51,659 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 [2021-08-31 04:23:51,661 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 [2021-08-31 04:23:51,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:23:51,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:23:51,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:23:51,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,684 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 [2021-08-31 04:23:51,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,685 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) [2021-08-31 04:23:51,686 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 [2021-08-31 04:23:51,686 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 [2021-08-31 04:23:51,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 04:23:51,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 04:23:51,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:23:51,716 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 [2021-08-31 04:23:51,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,718 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) [2021-08-31 04:23:51,720 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 [2021-08-31 04:23:51,721 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 [2021-08-31 04:23:51,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:23:51,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:23:51,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:23:51,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:23:51,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:23:51,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:23:51,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:23:51,730 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 04:23:51,734 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 04:23:51,734 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 04:23:51,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:23:51,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:23:51,779 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) [2021-08-31 04:23:51,795 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 04:23:51,795 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 04:23:51,795 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 04:23:51,796 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] [2021-08-31 04:23:51,796 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 [2021-08-31 04:23:51,818 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 [2021-08-31 04:23:51,819 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 04:23:51,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:23:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:23:51,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 04:23:51,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 04:23:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:23:52,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 04:23:52,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 04:23:52,112 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 [2021-08-31 04:23:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:23:52,271 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 [2021-08-31 04:23:52,271 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 176 states and 259 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-08-31 04:23:52,548 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 176 states and 259 transitions. cyclomatic complexity: 84. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 294 states and 443 transitions. Complement of second has 4 states. [2021-08-31 04:23:52,549 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 [2021-08-31 04:23:52,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-08-31 04:23:52,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2021-08-31 04:23:52,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 29 letters. [2021-08-31 04:23:52,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 04:23:52,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 74 letters. Loop has 29 letters. [2021-08-31 04:23:52,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 04:23:52,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 58 letters. [2021-08-31 04:23:52,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 04:23:52,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 294 states and 443 transitions. [2021-08-31 04:23:52,556 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 04:23:52,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 294 states to 0 states and 0 transitions. [2021-08-31 04:23:52,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 04:23:52,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 04:23:52,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 04:23:52,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:23:52,556 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 04:23:52,556 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 04:23:52,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:23:52,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:23:52,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:23:52,557 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-08-31 04:23:52,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:23:52,557 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-31 04:23:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-31 04:23:52,558 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-31 04:23:52,558 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 04:23:52,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-31 04:23:52,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 04:23:52,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 04:23:52,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 04:23:52,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:23:52,558 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 04:23:52,558 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 04:23:52,558 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 04:23:52,558 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-31 04:23:52,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 04:23:52,559 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 04:23:52,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 04:23:52,561 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 04:23:52,564 INFO L158 Benchmark]: Toolchain (without parser) took 7034.03ms. Allocated memory was 52.4MB in the beginning and 109.1MB in the end (delta: 56.6MB). Free memory was 29.2MB in the beginning and 50.4MB in the end (delta: -21.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-08-31 04:23:52,565 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:23:52,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.20ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.0MB in the beginning and 46.2MB in the end (delta: -17.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-08-31 04:23:52,565 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.07ms. Allocated memory is still 67.1MB. Free memory was 46.2MB in the beginning and 43.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 04:23:52,566 INFO L158 Benchmark]: Boogie Preprocessor took 50.54ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 41.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 04:23:52,566 INFO L158 Benchmark]: RCFGBuilder took 424.46ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 38.9MB in the end (delta: 2.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-08-31 04:23:52,567 INFO L158 Benchmark]: BuchiAutomizer took 6110.20ms. Allocated memory was 67.1MB in the beginning and 109.1MB in the end (delta: 41.9MB). Free memory was 38.9MB in the beginning and 50.4MB in the end (delta: -11.5MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2021-08-31 04:23:52,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.20ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.0MB in the beginning and 46.2MB in the end (delta: -17.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.07ms. Allocated memory is still 67.1MB. Free memory was 46.2MB in the beginning and 43.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.54ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 41.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.46ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 38.9MB in the end (delta: 2.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6110.20ms. Allocated memory was 67.1MB in the beginning and 109.1MB in the end (delta: 41.9MB). Free memory was 38.9MB in the beginning and 50.4MB in the end (delta: -11.5MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 04:23:52,601 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...