./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.2.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_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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 31ca1edb665bc8fc6789ed5194f89011673de799 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:44:07,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:44:07,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:44:07,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:44:07,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:44:07,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:44:07,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:44:07,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:44:07,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:44:07,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:44:07,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:44:07,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:44:07,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:44:07,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:44:07,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:44:07,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:44:07,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:44:07,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:44:07,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:44:07,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:44:07,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:44:07,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:44:07,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:44:07,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:44:07,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:44:07,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:44:07,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:44:07,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:44:07,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:44:07,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:44:07,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:44:07,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:44:07,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:44:07,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:44:07,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:44:07,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:44:07,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:44:07,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:44:07,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:44:07,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:44:07,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:44:07,305 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:44:07,343 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:44:07,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:44:07,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:44:07,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:44:07,346 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:44:07,347 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:44:07,347 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:44:07,347 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:44:07,347 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:44:07,348 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:44:07,348 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:44:07,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:44:07,349 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:44:07,349 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:44:07,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:44:07,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:44:07,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:44:07,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:44:07,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:44:07,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:44:07,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:44:07,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:44:07,352 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:44:07,352 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:44:07,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:44:07,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:44:07,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:44:07,353 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:44:07,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:44:07,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:44:07,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:44:07,355 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:44:07,356 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:44:07,356 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_b8bf3af8-a0b1-4220-86db-6808af4747a0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31ca1edb665bc8fc6789ed5194f89011673de799 [2020-11-30 00:44:07,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:44:07,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:44:07,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:44:07,720 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:44:07,721 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:44:07,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-11-30 00:44:07,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/data/f14f14cdf/952a534147e64879899839d0e6459922/FLAG694b0292b [2020-11-30 00:44:08,609 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:44:08,610 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-11-30 00:44:08,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/data/f14f14cdf/952a534147e64879899839d0e6459922/FLAG694b0292b [2020-11-30 00:44:08,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/data/f14f14cdf/952a534147e64879899839d0e6459922 [2020-11-30 00:44:08,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:44:08,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:44:08,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:44:08,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:44:08,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:44:08,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:44:08" (1/1) ... [2020-11-30 00:44:08,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd00096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:08, skipping insertion in model container [2020-11-30 00:44:08,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:44:08" (1/1) ... [2020-11-30 00:44:08,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:44:08,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:44:09,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:44:09,471 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:44:09,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:44:09,706 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:44:09,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09 WrapperNode [2020-11-30 00:44:09,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:44:09,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:44:09,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:44:09,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:44:09,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:44:09,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:44:09,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:44:09,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:44:09,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:44:09,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:44:09,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:44:09,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:44:09,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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 [2020-11-30 00:44:10,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:44:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:44:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:44:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:44:12,269 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:44:12,273 INFO L298 CfgBuilder]: Removed 23 assume(true) statements. [2020-11-30 00:44:12,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:44:12 BoogieIcfgContainer [2020-11-30 00:44:12,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:44:12,280 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:44:12,280 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:44:12,284 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:44:12,285 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:44:12,285 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:44:08" (1/3) ... [2020-11-30 00:44:12,287 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b4020fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:44:12, skipping insertion in model container [2020-11-30 00:44:12,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:44:12,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (2/3) ... [2020-11-30 00:44:12,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b4020fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:44:12, skipping insertion in model container [2020-11-30 00:44:12,288 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:44:12,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:44:12" (3/3) ... [2020-11-30 00:44:12,293 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-11-30 00:44:12,364 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:44:12,364 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:44:12,365 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:44:12,365 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:44:12,365 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:44:12,365 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:44:12,365 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:44:12,366 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:44:12,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states. [2020-11-30 00:44:12,493 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 124 [2020-11-30 00:44:12,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:44:12,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:44:12,508 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] [2020-11-30 00:44:12,508 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] [2020-11-30 00:44:12,508 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:44:12,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states. [2020-11-30 00:44:12,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 124 [2020-11-30 00:44:12,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:44:12,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:44:12,544 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] [2020-11-30 00:44:12,544 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] [2020-11-30 00:44:12,556 INFO L794 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(43);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 12#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~nondet59, main_#t~nondet60, main_#t~nondet61, main_#t~nondet62, main_#t~ret63, main_#t~ret64, main_#t~post65, 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;~newmax1~0 := main_#t~nondet38;havoc main_#t~nondet38;~id2~0 := main_#t~nondet39;havoc main_#t~nondet39;~r2~0 := main_#t~nondet40;havoc main_#t~nondet40;~st2~0 := main_#t~nondet41;havoc main_#t~nondet41;~nl2~0 := main_#t~nondet42;havoc main_#t~nondet42;~m2~0 := main_#t~nondet43;havoc main_#t~nondet43;~max2~0 := main_#t~nondet44;havoc main_#t~nondet44;~mode2~0 := main_#t~nondet45;havoc main_#t~nondet45;~newmax2~0 := main_#t~nondet46;havoc main_#t~nondet46;~id3~0 := main_#t~nondet47;havoc main_#t~nondet47;~r3~0 := main_#t~nondet48;havoc main_#t~nondet48;~st3~0 := main_#t~nondet49;havoc main_#t~nondet49;~nl3~0 := main_#t~nondet50;havoc main_#t~nondet50;~m3~0 := main_#t~nondet51;havoc main_#t~nondet51;~max3~0 := main_#t~nondet52;havoc main_#t~nondet52;~mode3~0 := main_#t~nondet53;havoc main_#t~nondet53;~newmax3~0 := main_#t~nondet54;havoc main_#t~nondet54;~id4~0 := main_#t~nondet55;havoc main_#t~nondet55;~r4~0 := main_#t~nondet56;havoc main_#t~nondet56;~st4~0 := main_#t~nondet57;havoc main_#t~nondet57;~nl4~0 := main_#t~nondet58;havoc main_#t~nondet58;~m4~0 := main_#t~nondet59;havoc main_#t~nondet59;~max4~0 := main_#t~nondet60;havoc main_#t~nondet60;~mode4~0 := main_#t~nondet61;havoc main_#t~nondet61;~newmax4~0 := main_#t~nondet62;havoc main_#t~nondet62;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; 232#L441true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 230#L452true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 133#L462true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 131#L473true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 24#L483true assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 23#L494true init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 249#L504true assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 248#L515true init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 309#L525true assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 308#L536true init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 215#L546true assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 214#L557true init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 117#L567true assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 116#L578true init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 8#L588true assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 6#L599true init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 72#L609true assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 71#L620true init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 289#L630true assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 288#L641true init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 192#L651true assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 191#L662true init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 94#L672true assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 93#L683true init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 154#L693true assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 152#L704true init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 50#L714true assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 49#L725true init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 276#L735true assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 275#L746true init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 322#L756true assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 179#L767true init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 224#L777true assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 223#L788true init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 125#L798true assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 124#L809true init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 16#L819true assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 14#L830true init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 77#L840true assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 76#L851true init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 294#L861true assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 293#L872true init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 202#L882true assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 200#L893true init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 105#L903true assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 104#L914true init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 167#L924true assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 165#L935true init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 62#L945true assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 65#L945-1true init_#res := init_~tmp___23~0; 196#L1130true main_#t~ret63 := init_#res;main_~i2~0 := main_#t~ret63;havoc main_#t~ret63;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; 15#L21true assume !(0 == assume_abort_if_not_~cond); 52#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; 153#L1271-2true [2020-11-30 00:44:12,573 INFO L796 eck$LassoCheckResult]: Loop: 153#L1271-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 32#L114true assume !(0 != ~mode1~0 % 256); 201#L150true assume !(~r1~0 < 3); 198#L150-1true ~mode1~0 := 1; 25#L114-2true havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 313#L178true assume !(0 != ~mode2~0 % 256); 161#L214true assume !(~r2~0 < 3); 156#L214-1true ~mode2~0 := 1; 307#L178-2true havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 121#L242true assume !(0 != ~mode3~0 % 256); 278#L278true assume !(~r3~0 < 3); 277#L278-1true ~mode3~0 := 1; 114#L242-2true havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18, node4_~newmax~3;havoc node4_~newmax~3;node4_~newmax~3 := 0; 80#L306true assume !(0 != ~mode4~0 % 256); 235#L342true assume !(~r4~0 < 3); 238#L342-1true ~mode4~0 := 1; 87#L306-2true ~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; 38#L1138true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 39#L1138-1true check_#res := check_~tmp~1; 226#L1190true main_#t~ret64 := check_#res;main_~c1~0 := main_#t~ret64;havoc main_#t~ret64;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 46#L1314true assume !(0 == assert_~arg % 256); 18#L1309true main_#t~post65 := main_~i2~0;main_~i2~0 := 1 + main_#t~post65;havoc main_#t~post65; 153#L1271-2true [2020-11-30 00:44:12,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:12,581 INFO L82 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 1 times [2020-11-30 00:44:12,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:12,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373278521] [2020-11-30 00:44:12,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:44:13,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373278521] [2020-11-30 00:44:13,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:44:13,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:44:13,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647354551] [2020-11-30 00:44:13,036 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:44:13,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:13,038 INFO L82 PathProgramCache]: Analyzing trace with hash -340497739, now seen corresponding path program 1 times [2020-11-30 00:44:13,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:13,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092018902] [2020-11-30 00:44:13,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:13,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:44:13,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092018902] [2020-11-30 00:44:13,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:44:13,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:44:13,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873178384] [2020-11-30 00:44:13,215 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:44:13,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:44:13,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:44:13,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:44:13,240 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 5 states. [2020-11-30 00:44:13,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:44:13,441 INFO L93 Difference]: Finished difference Result 327 states and 581 transitions. [2020-11-30 00:44:13,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:44:13,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 581 transitions. [2020-11-30 00:44:13,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 122 [2020-11-30 00:44:13,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 318 states and 564 transitions. [2020-11-30 00:44:13,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2020-11-30 00:44:13,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2020-11-30 00:44:13,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 564 transitions. [2020-11-30 00:44:13,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:44:13,494 INFO L691 BuchiCegarLoop]: Abstraction has 318 states and 564 transitions. [2020-11-30 00:44:13,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 564 transitions. [2020-11-30 00:44:13,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2020-11-30 00:44:13,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-11-30 00:44:13,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 564 transitions. [2020-11-30 00:44:13,576 INFO L714 BuchiCegarLoop]: Abstraction has 318 states and 564 transitions. [2020-11-30 00:44:13,577 INFO L594 BuchiCegarLoop]: Abstraction has 318 states and 564 transitions. [2020-11-30 00:44:13,577 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:44:13,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 564 transitions. [2020-11-30 00:44:13,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 122 [2020-11-30 00:44:13,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:44:13,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:44:13,592 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] [2020-11-30 00:44:13,592 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] [2020-11-30 00:44:13,593 INFO L794 eck$LassoCheckResult]: Stem: 890#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(43);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 690#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~nondet59, main_#t~nondet60, main_#t~nondet61, main_#t~nondet62, main_#t~ret63, main_#t~ret64, main_#t~post65, 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;~newmax1~0 := main_#t~nondet38;havoc main_#t~nondet38;~id2~0 := main_#t~nondet39;havoc main_#t~nondet39;~r2~0 := main_#t~nondet40;havoc main_#t~nondet40;~st2~0 := main_#t~nondet41;havoc main_#t~nondet41;~nl2~0 := main_#t~nondet42;havoc main_#t~nondet42;~m2~0 := main_#t~nondet43;havoc main_#t~nondet43;~max2~0 := main_#t~nondet44;havoc main_#t~nondet44;~mode2~0 := main_#t~nondet45;havoc main_#t~nondet45;~newmax2~0 := main_#t~nondet46;havoc main_#t~nondet46;~id3~0 := main_#t~nondet47;havoc main_#t~nondet47;~r3~0 := main_#t~nondet48;havoc main_#t~nondet48;~st3~0 := main_#t~nondet49;havoc main_#t~nondet49;~nl3~0 := main_#t~nondet50;havoc main_#t~nondet50;~m3~0 := main_#t~nondet51;havoc main_#t~nondet51;~max3~0 := main_#t~nondet52;havoc main_#t~nondet52;~mode3~0 := main_#t~nondet53;havoc main_#t~nondet53;~newmax3~0 := main_#t~nondet54;havoc main_#t~nondet54;~id4~0 := main_#t~nondet55;havoc main_#t~nondet55;~r4~0 := main_#t~nondet56;havoc main_#t~nondet56;~st4~0 := main_#t~nondet57;havoc main_#t~nondet57;~nl4~0 := main_#t~nondet58;havoc main_#t~nondet58;~m4~0 := main_#t~nondet59;havoc main_#t~nondet59;~max4~0 := main_#t~nondet60;havoc main_#t~nondet60;~mode4~0 := main_#t~nondet61;havoc main_#t~nondet61;~newmax4~0 := main_#t~nondet62;havoc main_#t~nondet62;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; 691#L441 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 900#L452 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 896#L462 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 723#L473 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 716#L483 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 712#L494 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 713#L504 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 711#L515 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 972#L525 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 964#L536 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 962#L546 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 879#L557 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 877#L567 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 685#L578 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 682#L588 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 680#L599 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 681#L609 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 676#L620 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 805#L630 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 804#L641 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 950#L651 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 840#L662 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 838#L672 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 670#L683 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 837#L693 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 772#L704 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 769#L714 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 767#L725 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 768#L735 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 766#L746 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 982#L756 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 833#L767 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 934#L777 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 892#L788 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 886#L798 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 704#L809 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 698#L819 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 694#L830 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 695#L840 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 693#L851 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 813#L861 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 810#L872 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 956#L882 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 862#L893 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 857#L903 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 736#L914 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 856#L924 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 795#L935 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 792#L945 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 719#L945-1 init_#res := init_~tmp___23~0; 797#L1130 main_#t~ret63 := init_#res;main_~i2~0 := main_#t~ret63;havoc main_#t~ret63;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; 696#L21 assume !(0 == assume_abort_if_not_~cond); 697#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; 701#L1271-2 [2020-11-30 00:44:13,616 INFO L796 eck$LassoCheckResult]: Loop: 701#L1271-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 732#L114 assume !(0 != ~mode1~0 % 256); 733#L150 assume !(~r1~0 < 3); 818#L150-1 ~mode1~0 := 1; 714#L114-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 715#L178 assume !(0 != ~mode2~0 % 256); 918#L214 assume !(~r2~0 < 3); 865#L214-1 ~mode2~0 := 1; 917#L178-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 881#L242 assume !(0 != ~mode3~0 % 256); 883#L278 assume !(~r3~0 < 3); 791#L278-1 ~mode3~0 := 1; 875#L242-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18, node4_~newmax~3;havoc node4_~newmax~3;node4_~newmax~3 := 0; 819#L306 assume !(0 != ~mode4~0 % 256); 821#L342 assume !(~r4~0 < 3); 926#L342-1 ~mode4~0 := 1; 828#L306-2 ~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; 747#L1138 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 748#L1139 assume ~st1~0 + ~nl1~0 <= 1; 906#L1140 assume ~st2~0 + ~nl2~0 <= 1; 951#L1141 assume ~st3~0 + ~nl3~0 <= 1; 952#L1142 assume ~st4~0 + ~nl4~0 <= 1; 800#L1143 assume ~r1~0 >= 3; 801#L1147 assume ~r1~0 < 3; 842#L1152 assume ~r1~0 >= 3; 871#L1157 assume ~r1~0 < 3;check_~tmp~1 := 1; 749#L1138-1 check_#res := check_~tmp~1; 750#L1190 main_#t~ret64 := check_#res;main_~c1~0 := main_#t~ret64;havoc main_#t~ret64;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 761#L1314 assume !(0 == assert_~arg % 256); 700#L1309 main_#t~post65 := main_~i2~0;main_~i2~0 := 1 + main_#t~post65;havoc main_#t~post65; 701#L1271-2 [2020-11-30 00:44:13,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:13,617 INFO L82 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 2 times [2020-11-30 00:44:13,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:13,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947335475] [2020-11-30 00:44:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:13,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:44:13,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947335475] [2020-11-30 00:44:13,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:44:13,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:44:13,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129013281] [2020-11-30 00:44:13,848 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:44:13,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:13,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1528981124, now seen corresponding path program 1 times [2020-11-30 00:44:13,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:13,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863750979] [2020-11-30 00:44:13,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:44:13,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863750979] [2020-11-30 00:44:13,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:44:13,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:44:13,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145209931] [2020-11-30 00:44:13,885 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:44:13,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:44:13,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:44:13,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:44:13,887 INFO L87 Difference]: Start difference. First operand 318 states and 564 transitions. cyclomatic complexity: 247 Second operand 3 states. [2020-11-30 00:44:13,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:44:13,986 INFO L93 Difference]: Finished difference Result 414 states and 718 transitions. [2020-11-30 00:44:13,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:44:13,988 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 414 states and 718 transitions. [2020-11-30 00:44:13,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 218 [2020-11-30 00:44:14,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 414 states to 414 states and 718 transitions. [2020-11-30 00:44:14,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 414 [2020-11-30 00:44:14,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 414 [2020-11-30 00:44:14,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 414 states and 718 transitions. [2020-11-30 00:44:14,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:44:14,019 INFO L691 BuchiCegarLoop]: Abstraction has 414 states and 718 transitions. [2020-11-30 00:44:14,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states and 718 transitions. [2020-11-30 00:44:14,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2020-11-30 00:44:14,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-11-30 00:44:14,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 718 transitions. [2020-11-30 00:44:14,059 INFO L714 BuchiCegarLoop]: Abstraction has 414 states and 718 transitions. [2020-11-30 00:44:14,059 INFO L594 BuchiCegarLoop]: Abstraction has 414 states and 718 transitions. [2020-11-30 00:44:14,059 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:44:14,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 414 states and 718 transitions. [2020-11-30 00:44:14,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 218 [2020-11-30 00:44:14,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:44:14,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:44:14,072 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] [2020-11-30 00:44:14,073 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] [2020-11-30 00:44:14,073 INFO L794 eck$LassoCheckResult]: Stem: 1638#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(43);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0;~newmax4~0 := 0; 1433#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~nondet59, main_#t~nondet60, main_#t~nondet61, main_#t~nondet62, main_#t~ret63, main_#t~ret64, main_#t~post65, 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;~newmax1~0 := main_#t~nondet38;havoc main_#t~nondet38;~id2~0 := main_#t~nondet39;havoc main_#t~nondet39;~r2~0 := main_#t~nondet40;havoc main_#t~nondet40;~st2~0 := main_#t~nondet41;havoc main_#t~nondet41;~nl2~0 := main_#t~nondet42;havoc main_#t~nondet42;~m2~0 := main_#t~nondet43;havoc main_#t~nondet43;~max2~0 := main_#t~nondet44;havoc main_#t~nondet44;~mode2~0 := main_#t~nondet45;havoc main_#t~nondet45;~newmax2~0 := main_#t~nondet46;havoc main_#t~nondet46;~id3~0 := main_#t~nondet47;havoc main_#t~nondet47;~r3~0 := main_#t~nondet48;havoc main_#t~nondet48;~st3~0 := main_#t~nondet49;havoc main_#t~nondet49;~nl3~0 := main_#t~nondet50;havoc main_#t~nondet50;~m3~0 := main_#t~nondet51;havoc main_#t~nondet51;~max3~0 := main_#t~nondet52;havoc main_#t~nondet52;~mode3~0 := main_#t~nondet53;havoc main_#t~nondet53;~newmax3~0 := main_#t~nondet54;havoc main_#t~nondet54;~id4~0 := main_#t~nondet55;havoc main_#t~nondet55;~r4~0 := main_#t~nondet56;havoc main_#t~nondet56;~st4~0 := main_#t~nondet57;havoc main_#t~nondet57;~nl4~0 := main_#t~nondet58;havoc main_#t~nondet58;~m4~0 := main_#t~nondet59;havoc main_#t~nondet59;~max4~0 := main_#t~nondet60;havoc main_#t~nondet60;~mode4~0 := main_#t~nondet61;havoc main_#t~nondet61;~newmax4~0 := main_#t~nondet62;havoc main_#t~nondet62;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; 1434#L441 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1646#L452 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1642#L462 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 1464#L473 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1457#L483 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 1453#L494 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 1454#L504 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 1452#L515 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1721#L525 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 1710#L536 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1709#L546 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 1622#L557 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1619#L567 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 1426#L578 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 1423#L588 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 1418#L599 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 1419#L609 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 1417#L620 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 1547#L630 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 1543#L641 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 1696#L651 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 1583#L662 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 1581#L672 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 1411#L683 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 1580#L693 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 1513#L704 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 1510#L714 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 1508#L725 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 1509#L735 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 1507#L746 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 1731#L756 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 1576#L767 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 1680#L777 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 1635#L788 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 1632#L798 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 1443#L809 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 1439#L819 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 1435#L830 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 1436#L840 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 1432#L851 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 1555#L861 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 1552#L872 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 1702#L882 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 1602#L893 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 1600#L903 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 1477#L914 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 1599#L924 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 1537#L935 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 1531#L945 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 1460#L945-1 init_#res := init_~tmp___23~0; 1539#L1130 main_#t~ret63 := init_#res;main_~i2~0 := main_#t~ret63;havoc main_#t~ret63;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; 1437#L21 assume !(0 == assume_abort_if_not_~cond); 1438#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; 1515#L1271-2 [2020-11-30 00:44:14,074 INFO L796 eck$LassoCheckResult]: Loop: 1515#L1271-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9, node1_~newmax~0;havoc node1_~newmax~0;node1_~newmax~0 := 0; 1740#L114 assume !(0 != ~mode1~0 % 256); 1739#L150 assume ~r1~0 < 3; 1734#L151 assume !(0 != ~ep12~0 % 256); 1447#L151-1 assume !(0 != ~ep13~0 % 256); 1472#L156 assume !(0 != ~ep14~0 % 256); 1560#L150-1 ~mode1~0 := 1; 1455#L114-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12, node2_~newmax~1;havoc node2_~newmax~1;node2_~newmax~1 := 0; 1456#L178 assume !(0 != ~mode2~0 % 256); 1664#L214 assume !(~r2~0 < 3); 1608#L214-1 ~mode2~0 := 1; 1663#L178-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15, node3_~newmax~2;havoc node3_~newmax~2;node3_~newmax~2 := 0; 1624#L242 assume !(0 != ~mode3~0 % 256); 1626#L278 assume !(~r3~0 < 3); 1535#L278-1 ~mode3~0 := 1; 1618#L242-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18, node4_~newmax~3;havoc node4_~newmax~3;node4_~newmax~3 := 0; 1561#L306 assume !(0 != ~mode4~0 % 256); 1563#L342 assume !(~r4~0 < 3); 1672#L342-1 ~mode4~0 := 1; 1570#L306-2 ~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; 1571#L1138 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1750#L1139 assume ~st1~0 + ~nl1~0 <= 1; 1749#L1140 assume ~st2~0 + ~nl2~0 <= 1; 1747#L1141 assume ~st3~0 + ~nl3~0 <= 1; 1746#L1142 assume ~st4~0 + ~nl4~0 <= 1; 1745#L1143 assume !(~r1~0 >= 3); 1718#L1146 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1719#L1147 assume ~r1~0 < 3; 1748#L1152 assume !(~r1~0 >= 3); 1616#L1156 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1617#L1157 assume ~r1~0 < 3;check_~tmp~1 := 1; 1744#L1138-1 check_#res := check_~tmp~1; 1743#L1190 main_#t~ret64 := check_#res;main_~c1~0 := main_#t~ret64;havoc main_#t~ret64;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1742#L1314 assume !(0 == assert_~arg % 256); 1741#L1309 main_#t~post65 := main_~i2~0;main_~i2~0 := 1 + main_#t~post65;havoc main_#t~post65; 1515#L1271-2 [2020-11-30 00:44:14,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:14,075 INFO L82 PathProgramCache]: Analyzing trace with hash 2064134942, now seen corresponding path program 3 times [2020-11-30 00:44:14,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:14,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674046081] [2020-11-30 00:44:14,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:44:14,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674046081] [2020-11-30 00:44:14,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:44:14,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:44:14,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10119758] [2020-11-30 00:44:14,223 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:44:14,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:14,224 INFO L82 PathProgramCache]: Analyzing trace with hash -110224643, now seen corresponding path program 1 times [2020-11-30 00:44:14,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:44:14,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182743203] [2020-11-30 00:44:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:44:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:14,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:14,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:14,314 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:44:15,132 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-11-30 00:44:15,995 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 151 [2020-11-30 00:44:16,015 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:44:16,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:44:16,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:44:16,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:44:16,017 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:44:16,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:16,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:44:16,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:44:16,018 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-30 00:44:16,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:44:16,018 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:44:16,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:16,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,003 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-30 00:44:17,479 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-30 00:44:17,536 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:44:17,537 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) [2020-11-30 00:44:17,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:44:17,560 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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 [2020-11-30 00:44:17,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:44:17,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:44:17,738 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:44:17,740 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:44:17,740 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:44:17,740 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:44:17,741 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:44:17,741 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:44:17,741 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:17,741 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:44:17,741 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:44:17,741 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-30 00:44:17,741 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:44:17,741 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:44:17,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:17,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:44:18,518 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-30 00:44:19,054 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-30 00:44:19,215 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:44:19,220 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,229 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 [2020-11-30 00:44:19,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,260 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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 [2020-11-30 00:44:19,304 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 [2020-11-30 00:44:19,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) [2020-11-30 00:44:19,354 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 [2020-11-30 00:44:19,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) [2020-11-30 00:44:19,418 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 [2020-11-30 00:44:19,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,422 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 [2020-11-30 00:44:19,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,460 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 [2020-11-30 00:44:19,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,466 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,498 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 [2020-11-30 00:44:19,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,506 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,533 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 [2020-11-30 00:44:19,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,565 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 [2020-11-30 00:44:19,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,596 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 [2020-11-30 00:44:19,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,601 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,642 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 [2020-11-30 00:44:19,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) [2020-11-30 00:44:19,687 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 [2020-11-30 00:44:19,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,693 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 [2020-11-30 00:44:19,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,721 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) [2020-11-30 00:44:19,772 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 [2020-11-30 00:44:19,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,778 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,812 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 [2020-11-30 00:44:19,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,819 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,858 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 [2020-11-30 00:44:19,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,911 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 [2020-11-30 00:44:19,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,949 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 [2020-11-30 00:44:19,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:19,986 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 [2020-11-30 00:44:19,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:44:19,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:44:19,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:44:19,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:44:19,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:44:19,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:44:19,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:44:19,991 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:44:20,023 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:44:20,023 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_b8bf3af8-a0b1-4220-86db-6808af4747a0/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:44:20,030 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:44:20,030 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:44:20,030 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:44:20,031 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 15 Supporting invariants [] [2020-11-30 00:44:20,072 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:44:20,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:20,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:44:20,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:44:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:20,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:44:20,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:44:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:44:20,438 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 [2020-11-30 00:44:20,439 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 414 states and 718 transitions. cyclomatic complexity: 305 Second operand 3 states. [2020-11-30 00:44:20,599 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 414 states and 718 transitions. cyclomatic complexity: 305. Second operand 3 states. Result 631 states and 1074 transitions. Complement of second has 4 states. [2020-11-30 00:44:20,599 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 [2020-11-30 00:44:20,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:44:20,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2020-11-30 00:44:20,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 564 transitions. Stem has 55 letters. Loop has 35 letters. [2020-11-30 00:44:20,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:44:20,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 564 transitions. Stem has 90 letters. Loop has 35 letters. [2020-11-30 00:44:20,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:44:20,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 564 transitions. Stem has 55 letters. Loop has 70 letters. [2020-11-30 00:44:20,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:44:20,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 631 states and 1074 transitions. [2020-11-30 00:44:20,620 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:44:20,620 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 631 states to 0 states and 0 transitions. [2020-11-30 00:44:20,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:44:20,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:44:20,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:44:20,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:44:20,621 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:44:20,621 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:44:20,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:44:20,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:44:20,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:44:20,628 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-11-30 00:44:20,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:44:20,628 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-30 00:44:20,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:44:20,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-30 00:44:20,629 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:44:20,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:44:20,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:44:20,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:44:20,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:44:20,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:44:20,629 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:44:20,630 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:44:20,630 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:44:20,630 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:44:20,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:44:20,630 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:44:20,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:44:20,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:44:20 BoogieIcfgContainer [2020-11-30 00:44:20,637 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:44:20,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:44:20,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:44:20,638 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:44:20,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:44:12" (3/4) ... [2020-11-30 00:44:20,642 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:44:20,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:44:20,645 INFO L168 Benchmark]: Toolchain (without parser) took 11755.59 ms. Allocated memory was 109.1 MB in the beginning and 230.7 MB in the end (delta: 121.6 MB). Free memory was 80.9 MB in the beginning and 90.6 MB in the end (delta: -9.8 MB). Peak memory consumption was 110.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:20,646 INFO L168 Benchmark]: CDTParser took 2.44 ms. Allocated memory is still 109.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:44:20,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.50 ms. Allocated memory is still 109.1 MB. Free memory was 80.9 MB in the beginning and 72.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:20,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.94 ms. Allocated memory is still 109.1 MB. Free memory was 72.7 MB in the beginning and 68.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:20,654 INFO L168 Benchmark]: Boogie Preprocessor took 93.89 ms. Allocated memory is still 109.1 MB. Free memory was 68.1 MB in the beginning and 63.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:20,658 INFO L168 Benchmark]: RCFGBuilder took 2338.05 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 63.6 MB in the beginning and 63.5 MB in the end (delta: 70.0 kB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:20,659 INFO L168 Benchmark]: BuchiAutomizer took 8357.22 ms. Allocated memory was 136.3 MB in the beginning and 230.7 MB in the end (delta: 94.4 MB). Free memory was 63.5 MB in the beginning and 90.6 MB in the end (delta: -27.2 MB). Peak memory consumption was 66.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:20,663 INFO L168 Benchmark]: Witness Printer took 5.26 ms. Allocated memory is still 230.7 MB. Free memory is still 90.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:44:20,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.44 ms. Allocated memory is still 109.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 797.50 ms. Allocated memory is still 109.1 MB. Free memory was 80.9 MB in the beginning and 72.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 136.94 ms. Allocated memory is still 109.1 MB. Free memory was 72.7 MB in the beginning and 68.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.89 ms. Allocated memory is still 109.1 MB. Free memory was 68.1 MB in the beginning and 63.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2338.05 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 63.6 MB in the beginning and 63.5 MB in the end (delta: 70.0 kB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8357.22 ms. Allocated memory was 136.3 MB in the beginning and 230.7 MB in the end (delta: 94.4 MB). Free memory was 63.5 MB in the beginning and 90.6 MB in the end (delta: -27.2 MB). Peak memory consumption was 66.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.26 ms. Allocated memory is still 230.7 MB. Free memory is still 90.6 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 6.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. 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 414 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1699 SDtfs, 701 SDslu, 2459 SDs, 0 SdLazy, 36 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI2 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital206 mio100 ax100 hnf98 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...