./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer --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 ea9d63d9dce85dc66cca4d104a4a8b31197b177b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:32:37,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:32:37,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:32:37,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:32:37,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:32:37,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:32:37,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:32:37,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:32:37,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:32:37,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:32:37,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:32:37,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:32:37,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:32:37,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:32:37,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:32:37,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:32:37,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:32:37,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:32:37,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:32:37,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:32:37,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:32:37,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:32:37,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:32:37,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:32:37,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:32:37,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:32:37,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:32:37,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:32:37,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:32:37,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:32:37,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:32:37,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:32:37,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:32:37,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:32:37,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:32:37,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:32:37,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:32:37,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:32:37,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:32:37,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:32:37,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:32:37,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:32:37,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:32:37,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:32:37,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:32:37,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:32:37,427 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:32:37,428 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:32:37,428 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:32:37,428 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:32:37,429 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:32:37,429 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:32:37,431 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:32:37,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:32:37,432 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:32:37,432 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:32:37,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:32:37,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:32:37,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:32:37,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:32:37,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:32:37,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:32:37,434 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:32:37,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:32:37,435 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:32:37,435 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:32:37,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:32:37,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:32:37,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:32:37,437 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:32:37,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:32:37,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:32:37,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:32:37,440 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:32:37,442 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:32:37,442 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:/tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea9d63d9dce85dc66cca4d104a4a8b31197b177b [2020-11-29 20:32:37,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:32:37,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:32:37,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:32:37,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:32:37,889 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:32:37,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c [2020-11-29 20:32:37,981 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/data/41965ed79/3011c770b8864169a6ec6d41c6e3e5c7/FLAG03649101f [2020-11-29 20:32:38,759 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:32:38,760 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c [2020-11-29 20:32:38,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/data/41965ed79/3011c770b8864169a6ec6d41c6e3e5c7/FLAG03649101f [2020-11-29 20:32:38,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/data/41965ed79/3011c770b8864169a6ec6d41c6e3e5c7 [2020-11-29 20:32:39,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:32:39,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:32:39,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:32:39,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:32:39,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:32:39,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71fb5f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39, skipping insertion in model container [2020-11-29 20:32:39,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:32:39,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:32:39,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:32:39,547 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:32:39,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:32:39,694 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:32:39,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39 WrapperNode [2020-11-29 20:32:39,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:32:39,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:32:39,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:32:39,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:32:39,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:32:39,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:32:39,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:32:39,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:32:39,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... [2020-11-29 20:32:39,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:32:39,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:32:39,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:32:39,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:32:39,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/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 [2020-11-29 20:32:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:32:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:32:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:32:40,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:32:42,188 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:32:42,189 INFO L298 CfgBuilder]: Removed 23 assume(true) statements. [2020-11-29 20:32:42,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:32:42 BoogieIcfgContainer [2020-11-29 20:32:42,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:32:42,193 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:32:42,193 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:32:42,200 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:32:42,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:32:42,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:32:39" (1/3) ... [2020-11-29 20:32:42,203 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c8c7f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:32:42, skipping insertion in model container [2020-11-29 20:32:42,203 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:32:42,203 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:32:39" (2/3) ... [2020-11-29 20:32:42,204 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c8c7f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:32:42, skipping insertion in model container [2020-11-29 20:32:42,204 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:32:42,204 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:32:42" (3/3) ... [2020-11-29 20:32:42,209 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.ufo.BOUNDED-8.pals.c [2020-11-29 20:32:42,292 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:32:42,292 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:32:42,293 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:32:42,293 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:32:42,293 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:32:42,293 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:32:42,293 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:32:42,294 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:32:42,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 304 states. [2020-11-29 20:32:42,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-11-29 20:32:42,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:32:42,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:32:42,433 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] [2020-11-29 20:32:42,434 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] [2020-11-29 20:32:42,434 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:32:42,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 304 states. [2020-11-29 20:32:42,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-11-29 20:32:42,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:32:42,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:32:42,456 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] [2020-11-29 20:32:42,457 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] [2020-11-29 20:32:42,470 INFO L794 eck$LassoCheckResult]: Stem: 111#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(37);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; 10#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; 276#L393true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 274#L404true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 180#L414true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 178#L425true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 88#L435true assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 85#L446true init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 143#L456true assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 142#L467true init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 50#L477true assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 48#L488true init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 261#L498true assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 260#L509true init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 172#L519true assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 171#L530true init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 225#L540true assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 223#L551true init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 134#L561true assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 133#L572true init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 35#L582true assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 34#L593true init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 242#L603true assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 241#L614true init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 305#L624true assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 304#L635true init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 207#L645true assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 206#L656true init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 118#L666true assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 117#L677true init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 21#L687true assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 20#L698true init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 59#L708true assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 77#L719true init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 270#L729true assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 267#L740true init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 175#L750true assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 174#L761true init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 81#L771true assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 80#L782true init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 138#L792true assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 137#L803true init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 40#L813true assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 39#L824true init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 253#L834true assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 252#L845true init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 163#L855true assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 162#L866true init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 216#L876true assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 215#L887true init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 127#L897true assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 129#L897-1true init_#res := init_~tmp___23~0; 68#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; 11#L21true assume !(0 == assume_abort_if_not_~cond); 43#L20true ~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; 239#L1203-2true [2020-11-29 20:32:42,471 INFO L796 eck$LassoCheckResult]: Loop: 239#L1203-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 16#L109true assume !(0 != ~mode1~0 % 256); 73#L141true assume !(~r1~0 < 3); 69#L141-1true ~mode1~0 := 1; 12#L109-2true havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 282#L162true assume !(0 != ~mode2~0 % 256); 188#L194true assume !(~r2~0 < 3); 186#L194-1true ~mode2~0 := 1; 278#L162-2true havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 96#L215true assume !(0 != ~mode3~0 % 256); 148#L247true assume !(~r3~0 < 3); 145#L247-1true ~mode3~0 := 1; 87#L215-2true havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 52#L268true assume !(0 != ~mode4~0 % 256); 263#L300true assume !(~r4~0 < 3); 259#L300-1true ~mode4~0 := 1; 45#L268-2true ~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; 224#L1074true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 226#L1074-1true check_#res := check_~tmp~1; 243#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; 300#L1246true assume !(0 == assert_~arg % 256); 269#L1241true main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 239#L1203-2true [2020-11-29 20:32:42,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:32:42,480 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 1 times [2020-11-29 20:32:42,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:32:42,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392366196] [2020-11-29 20:32:42,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:32:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:32:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:32:43,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392366196] [2020-11-29 20:32:43,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:32:43,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:32:43,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875711267] [2020-11-29 20:32:43,071 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:32:43,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:32:43,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1319514575, now seen corresponding path program 1 times [2020-11-29 20:32:43,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:32:43,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225135735] [2020-11-29 20:32:43,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:32:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:32:43,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:32:43,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225135735] [2020-11-29 20:32:43,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:32:43,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:32:43,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948185112] [2020-11-29 20:32:43,278 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:32:43,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:32:43,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:32:43,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:32:43,306 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-11-29 20:32:43,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:32:43,543 INFO L93 Difference]: Finished difference Result 307 states and 545 transitions. [2020-11-29 20:32:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:32:43,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 545 transitions. [2020-11-29 20:32:43,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-11-29 20:32:43,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 298 states and 528 transitions. [2020-11-29 20:32:43,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 298 [2020-11-29 20:32:43,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 298 [2020-11-29 20:32:43,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 528 transitions. [2020-11-29 20:32:43,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:32:43,604 INFO L691 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2020-11-29 20:32:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 528 transitions. [2020-11-29 20:32:43,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-29 20:32:43,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-29 20:32:43,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 528 transitions. [2020-11-29 20:32:43,708 INFO L714 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2020-11-29 20:32:43,708 INFO L594 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2020-11-29 20:32:43,709 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:32:43,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 298 states and 528 transitions. [2020-11-29 20:32:43,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-11-29 20:32:43,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:32:43,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:32:43,720 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] [2020-11-29 20:32:43,720 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] [2020-11-29 20:32:43,720 INFO L794 eck$LassoCheckResult]: Stem: 831#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(37);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; 645#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; 646#L393 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 895#L404 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 892#L414 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 797#L425 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 790#L435 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 677#L446 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 787#L456 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 739#L467 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 735#L477 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 733#L488 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 734#L498 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 726#L509 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 886#L519 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 825#L530 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 885#L540 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 641#L551 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 856#L561 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 711#L572 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 707#L582 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 702#L593 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 703#L603 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 701#L614 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 923#L624 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 912#L635 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 910#L645 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 840#L656 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 836#L666 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 630#L677 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 672#L687 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 670#L698 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 671#L708 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 664#L719 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 781#L729 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 778#L740 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 887#L750 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 785#L761 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 783#L771 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 652#L782 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 782#L792 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 720#L803 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 716#L813 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 714#L824 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 715#L834 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 713#L845 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 876#L855 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 813#L866 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 875#L876 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 850#L887 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 848#L897 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 681#L897-1 init_#res := init_~tmp___23~0; 771#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; 647#L21 assume !(0 == assume_abort_if_not_~cond); 648#L20 ~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; 721#L1203-2 [2020-11-29 20:32:43,721 INFO L796 eck$LassoCheckResult]: Loop: 721#L1203-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 660#L109 assume !(0 != ~mode1~0 % 256); 662#L141 assume !(~r1~0 < 3); 772#L141-1 ~mode1~0 := 1; 649#L109-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 650#L162 assume !(0 != ~mode2~0 % 256); 899#L194 assume !(~r2~0 < 3); 693#L194-1 ~mode2~0 := 1; 779#L162-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 805#L215 assume !(0 != ~mode3~0 % 256); 807#L247 assume !(~r3~0 < 3); 758#L247-1 ~mode3~0 := 1; 786#L215-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 740#L268 assume !(0 != ~mode4~0 % 256); 742#L300 assume !(~r4~0 < 3); 832#L300-1 ~mode4~0 := 1; 723#L268-2 ~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; 724#L1074 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 883#L1075 assume ~st1~0 + ~nl1~0 <= 1; 884#L1076 assume ~st2~0 + ~nl2~0 <= 1; 766#L1077 assume ~st3~0 + ~nl3~0 <= 1; 637#L1078 assume ~st4~0 + ~nl4~0 <= 1; 638#L1079 assume ~r1~0 >= 3; 704#L1083 assume ~r1~0 < 3; 705#L1088 assume ~r1~0 >= 3; 767#L1093 assume ~r1~0 < 3;check_~tmp~1 := 1; 879#L1074-1 check_#res := check_~tmp~1; 915#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; 924#L1246 assume !(0 == assert_~arg % 256); 925#L1241 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 721#L1203-2 [2020-11-29 20:32:43,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:32:43,722 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 2 times [2020-11-29 20:32:43,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:32:43,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490972709] [2020-11-29 20:32:43,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:32:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:32:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:32:43,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490972709] [2020-11-29 20:32:43,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:32:43,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:32:43,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888559572] [2020-11-29 20:32:43,890 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:32:43,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:32:43,891 INFO L82 PathProgramCache]: Analyzing trace with hash 94444544, now seen corresponding path program 1 times [2020-11-29 20:32:43,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:32:43,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127371514] [2020-11-29 20:32:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:32:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:32:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:32:43,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127371514] [2020-11-29 20:32:43,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:32:43,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:32:43,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564646662] [2020-11-29 20:32:43,966 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:32:43,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:32:43,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:32:43,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:32:43,968 INFO L87 Difference]: Start difference. First operand 298 states and 528 transitions. cyclomatic complexity: 231 Second operand 3 states. [2020-11-29 20:32:44,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:32:44,081 INFO L93 Difference]: Finished difference Result 383 states and 662 transitions. [2020-11-29 20:32:44,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:32:44,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 383 states and 662 transitions. [2020-11-29 20:32:44,088 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2020-11-29 20:32:44,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 383 states to 383 states and 662 transitions. [2020-11-29 20:32:44,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 383 [2020-11-29 20:32:44,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 383 [2020-11-29 20:32:44,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 383 states and 662 transitions. [2020-11-29 20:32:44,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:32:44,099 INFO L691 BuchiCegarLoop]: Abstraction has 383 states and 662 transitions. [2020-11-29 20:32:44,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states and 662 transitions. [2020-11-29 20:32:44,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2020-11-29 20:32:44,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-11-29 20:32:44,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 662 transitions. [2020-11-29 20:32:44,128 INFO L714 BuchiCegarLoop]: Abstraction has 383 states and 662 transitions. [2020-11-29 20:32:44,128 INFO L594 BuchiCegarLoop]: Abstraction has 383 states and 662 transitions. [2020-11-29 20:32:44,132 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:32:44,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 383 states and 662 transitions. [2020-11-29 20:32:44,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2020-11-29 20:32:44,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:32:44,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:32:44,146 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] [2020-11-29 20:32:44,150 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] [2020-11-29 20:32:44,152 INFO L794 eck$LassoCheckResult]: Stem: 1519#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(37);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; 1335#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; 1336#L393 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1585#L404 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1581#L414 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 1486#L425 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1479#L435 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 1367#L446 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 1478#L456 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 1428#L467 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1424#L477 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 1422#L488 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1423#L498 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 1415#L509 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1575#L519 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 1513#L530 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 1574#L540 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 1331#L551 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 1545#L561 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 1400#L572 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 1396#L582 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 1392#L593 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 1393#L603 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 1391#L614 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 1614#L624 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 1601#L635 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 1599#L645 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 1529#L656 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 1526#L666 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 1320#L677 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 1364#L687 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 1360#L698 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 1361#L708 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 1354#L719 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 1469#L729 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 1467#L740 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 1576#L750 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 1474#L761 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 1472#L771 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 1342#L782 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 1471#L792 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 1409#L803 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 1405#L813 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 1403#L824 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 1404#L834 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 1402#L845 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 1565#L855 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 1500#L866 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 1564#L876 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 1539#L887 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 1537#L897 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 1373#L897-1 init_#res := init_~tmp___23~0; 1459#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; 1337#L21 assume !(0 == assume_abort_if_not_~cond); 1338#L20 ~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; 1410#L1203-2 [2020-11-29 20:32:44,153 INFO L796 eck$LassoCheckResult]: Loop: 1410#L1203-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 1623#L109 assume !(0 != ~mode1~0 % 256); 1622#L141 assume ~r1~0 < 3; 1358#L142 assume !(0 != ~ep12~0 % 256); 1344#L142-2 assume !(0 != ~ep13~0 % 256); 1345#L145-1 assume !(0 != ~ep14~0 % 256); 1603#L141-1 ~mode1~0 := 1; 1685#L109-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 1683#L162 assume !(0 != ~mode2~0 % 256); 1684#L194 assume !(~r2~0 < 3); 1670#L194-1 ~mode2~0 := 1; 1665#L162-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 1663#L215 assume !(0 != ~mode3~0 % 256); 1664#L247 assume !(~r3~0 < 3); 1652#L247-1 ~mode3~0 := 1; 1651#L215-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 1647#L268 assume !(0 != ~mode4~0 % 256); 1643#L300 assume !(~r4~0 < 3); 1636#L300-1 ~mode4~0 := 1; 1635#L268-2 ~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; 1634#L1074 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1633#L1075 assume ~st1~0 + ~nl1~0 <= 1; 1632#L1076 assume ~st2~0 + ~nl2~0 <= 1; 1631#L1077 assume ~st3~0 + ~nl3~0 <= 1; 1630#L1078 assume ~st4~0 + ~nl4~0 <= 1; 1629#L1079 assume !(~r1~0 >= 3); 1616#L1082 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1617#L1083 assume ~r1~0 < 3; 1628#L1088 assume !(~r1~0 >= 3); 1620#L1092 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1621#L1093 assume ~r1~0 < 3;check_~tmp~1 := 1; 1627#L1074-1 check_#res := check_~tmp~1; 1626#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; 1625#L1246 assume !(0 == assert_~arg % 256); 1624#L1241 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 1410#L1203-2 [2020-11-29 20:32:44,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:32:44,155 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 3 times [2020-11-29 20:32:44,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:32:44,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950512876] [2020-11-29 20:32:44,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:32:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:32:44,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:32:44,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950512876] [2020-11-29 20:32:44,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:32:44,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:32:44,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547113051] [2020-11-29 20:32:44,285 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:32:44,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:32:44,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1683797404, now seen corresponding path program 1 times [2020-11-29 20:32:44,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:32:44,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451490922] [2020-11-29 20:32:44,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:32:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:32:44,328 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:32:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:32:44,340 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:32:44,385 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:32:45,235 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 145 [2020-11-29 20:32:45,929 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-11-29 20:32:45,944 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:32:45,945 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:32:45,945 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:32:45,945 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:32:45,945 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:32:45,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:45,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:32:45,946 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:32:45,946 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-29 20:32:45,946 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:32:45,947 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:32:45,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:46,803 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 20:32:47,215 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 20:32:47,267 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:32:47,268 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:47,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:32:47,276 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:47,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:32:47,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:32:47,443 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:32:47,445 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:32:47,446 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:32:47,446 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:32:47,446 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:32:47,446 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:32:47,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:47,447 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:32:47,447 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:32:47,447 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-29 20:32:47,447 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:32:47,447 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:32:47,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:47,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:32:48,060 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 20:32:48,560 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 20:32:48,707 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:32:48,713 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:48,724 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:48,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:48,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:48,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:48,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:48,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:48,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:48,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:32:48,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:48,793 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 [2020-11-29 20:32:48,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:48,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:48,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:48,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:48,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:48,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:48,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:32:48,801 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/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 [2020-11-29 20:32:48,856 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 [2020-11-29 20:32:48,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:48,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:48,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:48,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:48,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:48,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:48,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:32:48,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:48,919 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 [2020-11-29 20:32:48,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:48,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:48,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:48,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:48,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:48,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:48,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:48,929 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:48,980 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 [2020-11-29 20:32:48,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:48,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:48,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:48,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:48,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:48,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:48,988 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 [2020-11-29 20:32:48,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,044 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 [2020-11-29 20:32:49,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:49,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:49,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:32:49,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,106 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 [2020-11-29 20:32:49,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:49,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:49,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,110 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 [2020-11-29 20:32:49,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,169 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 [2020-11-29 20:32:49,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:49,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:49,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:49,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,223 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 [2020-11-29 20:32:49,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:49,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:49,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:49,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,293 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 [2020-11-29 20:32:49,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:49,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:49,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:49,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,362 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 [2020-11-29 20:32:49,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:49,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:49,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:32:49,397 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,450 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 [2020-11-29 20:32:49,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:49,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:49,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:32:49,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,556 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 [2020-11-29 20:32:49,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:49,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:49,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:32:49,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,621 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 [2020-11-29 20:32:49,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:49,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:49,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:32:49,631 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,686 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 [2020-11-29 20:32:49,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:32:49,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:32:49,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:32:49,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:32:49,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:32:49,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:32:49,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:49,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:32:49,702 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 20:32:49,703 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd26ec9-4d72-4ab3-aedc-a80f899ed5a3/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:32:49,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:32:49,714 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 20:32:49,715 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:32:49,715 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:32:49,760 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 20:32:49,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:32:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:32:50,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:32:50,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:32:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:32:50,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:32:50,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:32:50,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:32:50,309 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 [2020-11-29 20:32:50,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 383 states and 662 transitions. cyclomatic complexity: 280 Second operand 3 states. [2020-11-29 20:32:50,499 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 383 states and 662 transitions. cyclomatic complexity: 280. Second operand 3 states. Result 573 states and 970 transitions. Complement of second has 4 states. [2020-11-29 20:32:50,500 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 [2020-11-29 20:32:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:32:50,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2020-11-29 20:32:50,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 55 letters. Loop has 35 letters. [2020-11-29 20:32:50,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:32:50,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 90 letters. Loop has 35 letters. [2020-11-29 20:32:50,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:32:50,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 55 letters. Loop has 70 letters. [2020-11-29 20:32:50,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:32:50,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 573 states and 970 transitions. [2020-11-29 20:32:50,522 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:32:50,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 573 states to 0 states and 0 transitions. [2020-11-29 20:32:50,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:32:50,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:32:50,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:32:50,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:32:50,523 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:32:50,523 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:32:50,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:32:50,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:32:50,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:32:50,525 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-11-29 20:32:50,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:32:50,525 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 20:32:50,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:32:50,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 20:32:50,526 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:32:50,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:32:50,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:32:50,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:32:50,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:32:50,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:32:50,527 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:32:50,527 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:32:50,527 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:32:50,527 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 20:32:50,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:32:50,527 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:32:50,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:32:50,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:32:50 BoogieIcfgContainer [2020-11-29 20:32:50,535 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:32:50,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:32:50,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:32:50,536 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:32:50,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:32:42" (3/4) ... [2020-11-29 20:32:50,541 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:32:50,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:32:50,543 INFO L168 Benchmark]: Toolchain (without parser) took 11538.58 ms. Allocated memory was 102.8 MB in the beginning and 186.6 MB in the end (delta: 83.9 MB). Free memory was 72.4 MB in the beginning and 97.8 MB in the end (delta: -25.4 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:32:50,544 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 22.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:32:50,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.36 ms. Allocated memory is still 102.8 MB. Free memory was 71.9 MB in the beginning and 68.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:32:50,545 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.02 ms. Allocated memory is still 102.8 MB. Free memory was 68.9 MB in the beginning and 64.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:32:50,546 INFO L168 Benchmark]: Boogie Preprocessor took 96.88 ms. Allocated memory is still 102.8 MB. Free memory was 64.7 MB in the beginning and 60.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:32:50,547 INFO L168 Benchmark]: RCFGBuilder took 2274.77 ms. Allocated memory is still 102.8 MB. Free memory was 60.5 MB in the beginning and 38.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:32:50,548 INFO L168 Benchmark]: BuchiAutomizer took 8341.96 ms. Allocated memory was 102.8 MB in the beginning and 186.6 MB in the end (delta: 83.9 MB). Free memory was 38.2 MB in the beginning and 97.8 MB in the end (delta: -59.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:32:50,549 INFO L168 Benchmark]: Witness Printer took 5.55 ms. Allocated memory is still 186.6 MB. Free memory is still 97.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:32:50,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 22.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.36 ms. Allocated memory is still 102.8 MB. Free memory was 71.9 MB in the beginning and 68.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.02 ms. Allocated memory is still 102.8 MB. Free memory was 68.9 MB in the beginning and 64.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.88 ms. Allocated memory is still 102.8 MB. Free memory was 64.7 MB in the beginning and 60.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2274.77 ms. Allocated memory is still 102.8 MB. Free memory was 60.5 MB in the beginning and 38.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8341.96 ms. Allocated memory was 102.8 MB in the beginning and 186.6 MB in the end (delta: 83.9 MB). Free memory was 38.2 MB in the beginning and 97.8 MB in the end (delta: -59.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.55 ms. Allocated memory is still 186.6 MB. Free memory is still 97.8 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 8.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 6.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 383 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1592 SDtfs, 820 SDslu, 2285 SDs, 0 SdLazy, 35 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI2 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital194 mio100 ax100 hnf97 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...