./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 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.4.1.ufo.BOUNDED-8.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 d51faccd9ab9a9d8428bb72aea4f936e8019242f ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 05:50:46,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 05:50:46,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 05:50:46,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 05:50:46,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 05:50:46,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 05:50:46,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 05:50:46,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 05:50:46,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 05:50:46,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 05:50:46,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 05:50:46,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 05:50:46,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 05:50:46,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 05:50:46,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 05:50:46,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 05:50:46,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 05:50:46,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 05:50:46,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 05:50:46,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 05:50:46,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 05:50:46,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 05:50:46,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 05:50:46,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 05:50:46,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 05:50:46,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 05:50:46,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 05:50:46,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 05:50:46,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 05:50:46,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 05:50:46,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 05:50:46,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 05:50:46,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 05:50:46,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 05:50:46,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 05:50:46,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 05:50:46,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 05:50:46,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 05:50:46,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 05:50:46,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 05:50:46,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 05:50:46,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 05:50:46,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 05:50:46,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 05:50:46,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 05:50:46,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 05:50:46,553 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 05:50:46,553 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 05:50:46,554 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 05:50:46,554 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 05:50:46,554 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 05:50:46,554 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 05:50:46,556 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 05:50:46,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 05:50:46,556 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 05:50:46,557 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 05:50:46,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 05:50:46,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 05:50:46,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 05:50:46,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 05:50:46,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 05:50:46,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 05:50:46,559 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 05:50:46,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 05:50:46,559 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 05:50:46,559 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 05:50:46,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 05:50:46,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 05:50:46,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 05:50:46,561 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 05:50:46,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 05:50:46,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 05:50:46,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 05:50:46,562 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 05:50:46,564 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 05:50:46,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d51faccd9ab9a9d8428bb72aea4f936e8019242f [2020-10-26 05:50:47,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 05:50:47,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 05:50:47,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 05:50:47,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 05:50:47,075 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 05:50:47,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-26 05:50:47,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc21e8e3/0de49974eae943be90b66b74b2ae1a79/FLAG651327034 [2020-10-26 05:50:48,041 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 05:50:48,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-26 05:50:48,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc21e8e3/0de49974eae943be90b66b74b2ae1a79/FLAG651327034 [2020-10-26 05:50:48,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc21e8e3/0de49974eae943be90b66b74b2ae1a79 [2020-10-26 05:50:48,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 05:50:48,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 05:50:48,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 05:50:48,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 05:50:48,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 05:50:48,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:48,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9fb717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48, skipping insertion in model container [2020-10-26 05:50:48,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:48,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 05:50:48,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 05:50:48,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 05:50:48,713 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 05:50:48,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 05:50:48,879 INFO L208 MainTranslator]: Completed translation [2020-10-26 05:50:48,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48 WrapperNode [2020-10-26 05:50:48,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 05:50:48,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 05:50:48,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 05:50:48,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 05:50:48,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:48,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:48,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 05:50:48,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 05:50:48,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 05:50:48,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 05:50:48,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:48,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:48,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:48,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:49,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:49,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:49,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... [2020-10-26 05:50:49,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 05:50:49,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 05:50:49,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 05:50:49,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 05:50:49,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 05:50:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 05:50:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 05:50:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 05:50:50,805 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 05:50:50,806 INFO L298 CfgBuilder]: Removed 23 assume(true) statements. [2020-10-26 05:50:50,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 05:50:50 BoogieIcfgContainer [2020-10-26 05:50:50,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 05:50:50,812 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 05:50:50,812 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 05:50:50,817 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 05:50:50,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 05:50:50,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 05:50:48" (1/3) ... [2020-10-26 05:50:50,819 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@262efdf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 05:50:50, skipping insertion in model container [2020-10-26 05:50:50,819 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 05:50:50,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:50:48" (2/3) ... [2020-10-26 05:50:50,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@262efdf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 05:50:50, skipping insertion in model container [2020-10-26 05:50:50,820 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 05:50:50,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 05:50:50" (3/3) ... [2020-10-26 05:50:50,822 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-26 05:50:50,886 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 05:50:50,886 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 05:50:50,887 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 05:50:50,887 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 05:50:50,887 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 05:50:50,887 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 05:50:50,887 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 05:50:50,887 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 05:50:50,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states. [2020-10-26 05:50:50,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-10-26 05:50:50,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 05:50:50,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 05:50:50,995 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 05:50:50,996 INFO L853 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] [2020-10-26 05:50:50,996 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 05:50:50,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states. [2020-10-26 05:50:51,006 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-10-26 05:50:51,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 05:50:51,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 05:50:51,010 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 05:50:51,011 INFO L853 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] [2020-10-26 05:50:51,021 INFO L794 eck$LassoCheckResult]: Stem: 114#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;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 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;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 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;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 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;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 17#L-1true havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 202#L441true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 200#L452true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 118#L462true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 117#L473true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 25#L483true assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 24#L494true init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 216#L504true assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 215#L515true init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 277#L525true assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 275#L536true init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 185#L546true assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 184#L557true init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 105#L567true assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 102#L578true init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 11#L588true assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 10#L599true init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 63#L609true assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 61#L620true init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 260#L630true assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 259#L641true init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 167#L651true assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 166#L662true init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 83#L672true assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 82#L683true init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 135#L693true assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 134#L704true init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 45#L714true assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 43#L725true init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 245#L735true assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 244#L746true init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 289#L756true assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 152#L767true init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 196#L777true assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 195#L788true init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 112#L798true assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 111#L809true init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 21#L819true assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 19#L830true init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 71#L840true assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 69#L851true init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 265#L861true assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 264#L872true init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 172#L882true assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 171#L893true init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 92#L903true assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 90#L914true init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 146#L924true assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 144#L935true init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 52#L945true assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 54#L945-1true init_#res := init_~tmp___23~0; 67#L1066true main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 294#L68true assume !(0 == assume_abort_if_not_~cond); 198#L67true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 229#L1203-2true [2020-10-26 05:50:51,022 INFO L796 eck$LassoCheckResult]: Loop: 229#L1203-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 279#L156true assume !(0 != ~mode1~0 % 256); 188#L188true assume !(~r1~0 < 3); 183#L188-1true ~mode1~0 := 1; 272#L156-2true havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 103#L209true assume !(0 != ~mode2~0 % 256); 9#L241true assume !(~r2~0 < 3); 6#L241-1true ~mode2~0 := 1; 97#L209-2true havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 59#L262true assume !(0 != ~mode3~0 % 256); 257#L294true assume !(~r3~0 < 3); 255#L294-1true ~mode3~0 := 1; 77#L262-2true havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 178#L315true assume !(0 != ~mode4~0 % 256); 94#L347true assume !(~r4~0 < 3); 96#L347-1true ~mode4~0 := 1; 162#L315-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_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;~p24_old~0 := ~p24_new~0;~p24_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;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 209#L1074true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 210#L1074-1true check_#res := check_~tmp~1; 231#L1126true main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 291#L1246true assume !(0 == assert_~arg % 256); 253#L1241true main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 229#L1203-2true [2020-10-26 05:50:51,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:50:51,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1972521662, now seen corresponding path program 1 times [2020-10-26 05:50:51,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:50:51,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755204038] [2020-10-26 05:50:51,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:50:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:50:51,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:50:51,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755204038] [2020-10-26 05:50:51,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 05:50:51,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 05:50:51,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646183977] [2020-10-26 05:50:51,545 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 05:50:51,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:50:51,546 INFO L82 PathProgramCache]: Analyzing trace with hash -11982031, now seen corresponding path program 1 times [2020-10-26 05:50:51,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:50:51,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923377002] [2020-10-26 05:50:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:50:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:50:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:50:51,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923377002] [2020-10-26 05:50:51,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 05:50:51,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 05:50:51,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934270246] [2020-10-26 05:50:51,655 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-26 05:50:51,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 05:50:51,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 05:50:51,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 05:50:51,676 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 5 states. [2020-10-26 05:50:51,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 05:50:51,790 INFO L93 Difference]: Finished difference Result 295 states and 521 transitions. [2020-10-26 05:50:51,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 05:50:51,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 295 states and 521 transitions. [2020-10-26 05:50:51,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-10-26 05:50:51,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 295 states to 286 states and 504 transitions. [2020-10-26 05:50:51,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 286 [2020-10-26 05:50:51,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 286 [2020-10-26 05:50:51,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 286 states and 504 transitions. [2020-10-26 05:50:51,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 05:50:51,847 INFO L691 BuchiCegarLoop]: Abstraction has 286 states and 504 transitions. [2020-10-26 05:50:51,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states and 504 transitions. [2020-10-26 05:50:51,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-26 05:50:51,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-26 05:50:51,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 504 transitions. [2020-10-26 05:50:51,907 INFO L714 BuchiCegarLoop]: Abstraction has 286 states and 504 transitions. [2020-10-26 05:50:51,909 INFO L594 BuchiCegarLoop]: Abstraction has 286 states and 504 transitions. [2020-10-26 05:50:51,909 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 05:50:51,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 286 states and 504 transitions. [2020-10-26 05:50:51,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-10-26 05:50:51,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 05:50:51,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 05:50:51,917 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 05:50:51,920 INFO L853 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, 1] [2020-10-26 05:50:51,920 INFO L794 eck$LassoCheckResult]: Stem: 802#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;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 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;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 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;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 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;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 635#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 636#L441 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 809#L452 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 805#L462 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 657#L473 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 653#L483 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 651#L494 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 652#L504 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 650#L515 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 876#L525 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 864#L536 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 863#L546 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 794#L557 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 791#L567 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 628#L578 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 623#L588 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 621#L599 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 622#L609 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 618#L620 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 730#L630 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 728#L641 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 852#L651 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 764#L662 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 762#L672 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 606#L683 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 761#L693 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 700#L704 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 697#L714 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 695#L725 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 696#L735 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 694#L746 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 888#L756 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 757#L767 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 835#L777 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 804#L788 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 800#L798 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 648#L809 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 644#L819 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 642#L830 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 643#L840 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 638#L851 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 742#L861 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 739#L872 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 854#L882 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 777#L893 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 775#L903 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 669#L914 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 773#L924 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 714#L935 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 711#L945 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 659#L945-1 init_#res := init_~tmp___23~0; 716#L1066 main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 737#L68 assume !(0 == assume_abort_if_not_~cond); 872#L67 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 873#L1203-2 [2020-10-26 05:50:51,921 INFO L796 eck$LassoCheckResult]: Loop: 873#L1203-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 884#L156 assume !(0 != ~mode1~0 % 256); 866#L188 assume !(~r1~0 < 3); 752#L188-1 ~mode1~0 := 1; 861#L156-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 789#L209 assume !(0 != ~mode2~0 % 256); 619#L241 assume !(~r2~0 < 3); 613#L241-1 ~mode2~0 := 1; 614#L209-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 724#L262 assume !(0 != ~mode3~0 % 256); 726#L294 assume !(~r3~0 < 3); 828#L294-1 ~mode3~0 := 1; 631#L262-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 753#L315 assume !(0 != ~mode4~0 % 256); 779#L347 assume !(~r4~0 < 3); 641#L347-1 ~mode4~0 := 1; 783#L315-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_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;~p24_old~0 := ~p24_new~0;~p24_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;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 849#L1074 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 838#L1075 assume ~st1~0 + ~nl1~0 <= 1; 839#L1076 assume ~st2~0 + ~nl2~0 <= 1; 734#L1077 assume ~st3~0 + ~nl3~0 <= 1; 633#L1078 assume ~st4~0 + ~nl4~0 <= 1; 634#L1079 assume ~r1~0 >= 3; 680#L1083 assume ~r1~0 < 3; 681#L1088 assume ~r1~0 >= 3; 735#L1093 assume ~r1~0 < 3;check_~tmp~1 := 1; 837#L1074-1 check_#res := check_~tmp~1; 874#L1126 main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 885#L1246 assume !(0 == assert_~arg % 256); 889#L1241 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 873#L1203-2 [2020-10-26 05:50:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:50:51,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1972521662, now seen corresponding path program 2 times [2020-10-26 05:50:51,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:50:51,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511615578] [2020-10-26 05:50:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:50:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:50:52,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:50:52,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511615578] [2020-10-26 05:50:52,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 05:50:52,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 05:50:52,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046051567] [2020-10-26 05:50:52,061 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 05:50:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:50:52,062 INFO L82 PathProgramCache]: Analyzing trace with hash 970511616, now seen corresponding path program 1 times [2020-10-26 05:50:52,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:50:52,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799262381] [2020-10-26 05:50:52,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:50:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:50:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:50:52,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799262381] [2020-10-26 05:50:52,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 05:50:52,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 05:50:52,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488295989] [2020-10-26 05:50:52,136 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-26 05:50:52,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 05:50:52,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 05:50:52,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 05:50:52,137 INFO L87 Difference]: Start difference. First operand 286 states and 504 transitions. cyclomatic complexity: 219 Second operand 3 states. [2020-10-26 05:50:52,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 05:50:52,206 INFO L93 Difference]: Finished difference Result 371 states and 638 transitions. [2020-10-26 05:50:52,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 05:50:52,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 371 states and 638 transitions. [2020-10-26 05:50:52,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2020-10-26 05:50:52,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 371 states to 371 states and 638 transitions. [2020-10-26 05:50:52,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 371 [2020-10-26 05:50:52,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 371 [2020-10-26 05:50:52,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 371 states and 638 transitions. [2020-10-26 05:50:52,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 05:50:52,233 INFO L691 BuchiCegarLoop]: Abstraction has 371 states and 638 transitions. [2020-10-26 05:50:52,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states and 638 transitions. [2020-10-26 05:50:52,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2020-10-26 05:50:52,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-10-26 05:50:52,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 638 transitions. [2020-10-26 05:50:52,268 INFO L714 BuchiCegarLoop]: Abstraction has 371 states and 638 transitions. [2020-10-26 05:50:52,268 INFO L594 BuchiCegarLoop]: Abstraction has 371 states and 638 transitions. [2020-10-26 05:50:52,268 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 05:50:52,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 371 states and 638 transitions. [2020-10-26 05:50:52,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2020-10-26 05:50:52,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 05:50:52,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 05:50:52,284 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 05:50:52,284 INFO L853 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, 1, 1, 1, 1, 1, 1] [2020-10-26 05:50:52,286 INFO L794 eck$LassoCheckResult]: Stem: 1466#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;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 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;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 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;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 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;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 1301#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 1302#L441 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1473#L452 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1469#L462 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 1323#L473 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1319#L483 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 1317#L494 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 1318#L504 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 1316#L515 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1541#L525 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 1531#L536 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1529#L546 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 1458#L557 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1455#L567 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 1294#L578 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 1289#L588 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 1287#L599 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 1288#L609 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 1284#L620 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 1395#L630 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 1393#L641 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 1516#L651 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 1429#L662 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 1427#L672 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 1274#L683 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 1426#L693 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 1365#L704 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 1362#L714 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 1360#L725 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 1361#L735 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 1359#L746 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 1556#L756 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 1422#L767 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 1499#L777 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 1468#L788 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 1464#L798 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 1314#L809 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 1310#L819 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 1308#L830 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 1309#L840 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 1304#L851 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 1407#L861 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 1404#L872 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 1518#L882 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 1442#L893 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 1440#L903 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 1335#L914 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 1438#L924 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 1379#L935 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 1376#L945 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 1325#L945-1 init_#res := init_~tmp___23~0; 1381#L1066 main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 1402#L68 assume !(0 == assume_abort_if_not_~cond); 1537#L67 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 1538#L1203-2 [2020-10-26 05:50:52,287 INFO L796 eck$LassoCheckResult]: Loop: 1538#L1203-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 1564#L156 assume !(0 != ~mode1~0 % 256); 1563#L188 assume ~r1~0 < 3; 1561#L189 assume !(0 != ~ep12~0 % 256); 1543#L189-2 assume !(0 != ~ep13~0 % 256); 1431#L192-1 assume !(0 != ~ep14~0 % 256); 1417#L188-1 ~mode1~0 := 1; 1622#L156-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 1620#L209 assume !(0 != ~mode2~0 % 256); 1621#L241 assume !(~r2~0 < 3); 1609#L241-1 ~mode2~0 := 1; 1608#L209-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 1604#L262 assume !(0 != ~mode3~0 % 256); 1600#L294 assume !(~r3~0 < 3); 1593#L294-1 ~mode3~0 := 1; 1592#L262-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 1590#L315 assume !(0 != ~mode4~0 % 256); 1580#L347 assume !(~r4~0 < 3); 1576#L347-1 ~mode4~0 := 1; 1575#L315-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_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;~p24_old~0 := ~p24_new~0;~p24_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;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1574#L1074 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1573#L1075 assume ~st1~0 + ~nl1~0 <= 1; 1572#L1076 assume ~st2~0 + ~nl2~0 <= 1; 1571#L1077 assume ~st3~0 + ~nl3~0 <= 1; 1570#L1078 assume ~st4~0 + ~nl4~0 <= 1; 1569#L1079 assume !(~r1~0 >= 3); 1553#L1082 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1554#L1083 assume ~r1~0 < 3; 1562#L1088 assume !(~r1~0 >= 3); 1559#L1092 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1560#L1093 assume ~r1~0 < 3;check_~tmp~1 := 1; 1568#L1074-1 check_#res := check_~tmp~1; 1567#L1126 main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1566#L1246 assume !(0 == assert_~arg % 256); 1565#L1241 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 1538#L1203-2 [2020-10-26 05:50:52,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:50:52,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1972521662, now seen corresponding path program 3 times [2020-10-26 05:50:52,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:50:52,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742609862] [2020-10-26 05:50:52,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:50:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:50:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:50:52,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742609862] [2020-10-26 05:50:52,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 05:50:52,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 05:50:52,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958912548] [2020-10-26 05:50:52,412 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 05:50:52,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:50:52,413 INFO L82 PathProgramCache]: Analyzing trace with hash -419942828, now seen corresponding path program 1 times [2020-10-26 05:50:52,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:50:52,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292913813] [2020-10-26 05:50:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:50:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:50:52,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:50:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:50:52,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:50:52,482 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 05:50:53,021 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 145 [2020-10-26 05:50:53,533 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-10-26 05:50:53,547 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 05:50:53,547 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 05:50:53,548 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 05:50:53,548 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 05:50:53,548 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 05:50:53,548 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:53,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 05:50:53,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 05:50:53,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.1.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-10-26 05:50:53,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 05:50:53,550 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 05:50:53,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:53,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:54,245 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-26 05:50:54,635 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-26 05:50:54,731 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 05:50:54,733 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:50:54,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:50:54,761 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:50:54,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 05:50:54,812 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:54,975 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 05:50:54,979 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 05:50:54,980 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 05:50:54,980 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 05:50:54,980 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 05:50:54,980 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 05:50:54,980 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:54,980 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 05:50:54,981 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 05:50:54,981 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.1.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-10-26 05:50:54,981 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 05:50:54,983 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 05:50:54,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:50:55,544 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-26 05:50:55,973 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-26 05:50:56,119 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 05:50:56,125 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,152 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:50:56,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,206 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 05:50:56,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,251 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,282 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:50:56,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:50:56,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,382 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:50:56,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,421 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,493 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 05:50:56,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 05:50:56,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,554 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:50:56,587 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 05:50:56,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 05:50:56,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 05:50:56,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 05:50:56,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,719 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,751 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 05:50:56,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 05:50:56,755 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,823 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:50:56,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:50:56,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:50:56,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:50:56,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:50:56,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:50:56,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:50:56,879 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:50:56,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:50:56,882 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 05:50:56,892 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 05:50:56,892 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:50:56,898 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 05:50:56,898 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 05:50:56,898 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 05:50:56,899 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 15 Supporting invariants [] Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:50:56,935 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 05:50:56,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:50:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:50:57,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 05:50:57,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 05:50:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:50:57,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 05:50:57,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 05:50:57,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:50:57,236 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 [2020-10-26 05:50:57,237 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 371 states and 638 transitions. cyclomatic complexity: 268 Second operand 3 states. [2020-10-26 05:50:57,373 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 371 states and 638 transitions. cyclomatic complexity: 268. Second operand 3 states. Result 561 states and 946 transitions. Complement of second has 4 states. [2020-10-26 05:50:57,374 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 [2020-10-26 05:50:57,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 05:50:57,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2020-10-26 05:50:57,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 504 transitions. Stem has 55 letters. Loop has 35 letters. [2020-10-26 05:50:57,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:50:57,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 504 transitions. Stem has 90 letters. Loop has 35 letters. [2020-10-26 05:50:57,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:50:57,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 504 transitions. Stem has 55 letters. Loop has 70 letters. [2020-10-26 05:50:57,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:50:57,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 561 states and 946 transitions. [2020-10-26 05:50:57,394 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 05:50:57,394 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 561 states to 0 states and 0 transitions. [2020-10-26 05:50:57,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 05:50:57,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 05:50:57,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 05:50:57,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 05:50:57,395 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 05:50:57,395 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 05:50:57,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 05:50:57,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 05:50:57,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 05:50:57,403 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-10-26 05:50:57,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 05:50:57,404 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-26 05:50:57,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 05:50:57,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-26 05:50:57,404 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 05:50:57,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 05:50:57,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 05:50:57,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 05:50:57,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 05:50:57,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 05:50:57,405 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 05:50:57,405 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 05:50:57,405 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 05:50:57,405 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 05:50:57,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 05:50:57,406 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 05:50:57,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 05:50:57,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 05:50:57 BoogieIcfgContainer [2020-10-26 05:50:57,413 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 05:50:57,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 05:50:57,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 05:50:57,416 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 05:50:57,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 05:50:50" (3/4) ... [2020-10-26 05:50:57,421 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 05:50:57,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 05:50:57,423 INFO L168 Benchmark]: Toolchain (without parser) took 9199.04 ms. Allocated memory was 46.1 MB in the beginning and 151.0 MB in the end (delta: 104.9 MB). Free memory was 30.1 MB in the beginning and 64.0 MB in the end (delta: -33.9 MB). Peak memory consumption was 72.4 MB. Max. memory is 16.1 GB. [2020-10-26 05:50:57,424 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 37.7 MB. Free memory was 20.3 MB in the beginning and 20.2 MB in the end (delta: 43.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 05:50:57,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.64 ms. Allocated memory is still 46.1 MB. Free memory was 29.4 MB in the beginning and 27.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-10-26 05:50:57,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.42 ms. Allocated memory is still 46.1 MB. Free memory was 27.0 MB in the beginning and 22.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 05:50:57,432 INFO L168 Benchmark]: Boogie Preprocessor took 107.30 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 26.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-10-26 05:50:57,434 INFO L168 Benchmark]: RCFGBuilder took 1726.29 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 26.7 MB in the beginning and 36.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-10-26 05:50:57,442 INFO L168 Benchmark]: BuchiAutomizer took 6601.15 ms. Allocated memory was 69.2 MB in the beginning and 151.0 MB in the end (delta: 81.8 MB). Free memory was 36.4 MB in the beginning and 64.0 MB in the end (delta: -27.6 MB). Peak memory consumption was 54.0 MB. Max. memory is 16.1 GB. [2020-10-26 05:50:57,442 INFO L168 Benchmark]: Witness Printer took 5.26 ms. Allocated memory is still 151.0 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 05:50:57,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 37.7 MB. Free memory was 20.3 MB in the beginning and 20.2 MB in the end (delta: 43.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 646.64 ms. Allocated memory is still 46.1 MB. Free memory was 29.4 MB in the beginning and 27.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.42 ms. Allocated memory is still 46.1 MB. Free memory was 27.0 MB in the beginning and 22.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.30 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 26.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1726.29 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 26.7 MB in the beginning and 36.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6601.15 ms. Allocated memory was 69.2 MB in the beginning and 151.0 MB in the end (delta: 81.8 MB). Free memory was 36.4 MB in the beginning and 64.0 MB in the end (delta: -27.6 MB). Peak memory consumption was 54.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.26 ms. Allocated memory is still 151.0 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 15 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 371 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1520 SDtfs, 623 SDslu, 2189 SDs, 0 SdLazy, 35 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI2 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital194 mio100 ax124 hnf104 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...