./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_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_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 a7e462d09ee20a1de1c492e772422e3c9bc2bb12 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:04:49,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:04:49,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:04:49,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:04:49,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:04:49,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:04:49,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:04:49,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:04:49,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:04:49,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:04:49,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:04:49,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:04:49,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:04:49,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:04:49,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:04:49,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:04:49,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:04:49,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:04:49,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:04:49,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:04:49,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:04:49,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:04:49,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:04:49,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:04:49,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:04:49,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:04:49,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:04:49,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:04:49,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:04:49,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:04:49,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:04:49,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:04:49,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:04:49,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:04:49,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:04:49,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:04:49,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:04:49,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:04:49,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:04:49,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:04:49,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:04:49,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:04:50,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:04:50,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:04:50,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:04:50,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:04:50,016 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:04:50,017 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:04:50,017 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:04:50,017 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:04:50,017 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:04:50,017 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:04:50,018 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:04:50,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:04:50,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:04:50,018 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:04:50,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:04:50,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:04:50,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:04:50,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:04:50,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:04:50,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:04:50,020 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:04:50,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:04:50,020 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:04:50,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:04:50,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:04:50,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:04:50,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:04:50,021 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:04:50,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:04:50,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:04:50,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:04:50,022 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:04:50,024 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:04:50,024 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_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e462d09ee20a1de1c492e772422e3c9bc2bb12 [2020-11-29 22:04:50,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:04:50,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:04:50,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:04:50,308 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:04:50,309 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:04:50,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-11-29 22:04:50,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/data/2fb64581a/addfefb11d6e4e239909e7028fa6c06e/FLAGcd39ee273 [2020-11-29 22:04:50,975 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:04:50,976 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-11-29 22:04:50,990 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/data/2fb64581a/addfefb11d6e4e239909e7028fa6c06e/FLAGcd39ee273 [2020-11-29 22:04:51,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/data/2fb64581a/addfefb11d6e4e239909e7028fa6c06e [2020-11-29 22:04:51,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:04:51,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:04:51,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:04:51,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:04:51,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:04:51,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:51,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7be39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51, skipping insertion in model container [2020-11-29 22:04:51,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:51,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:04:51,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:04:51,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:04:51,724 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:04:51,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:04:51,876 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:04:51,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51 WrapperNode [2020-11-29 22:04:51,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:04:51,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:04:51,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:04:51,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:04:51,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:51,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:51,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:04:51,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:04:51,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:04:51,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:04:51,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:51,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:52,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:52,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:52,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:52,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:52,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... [2020-11-29 22:04:52,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:04:52,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:04:52,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:04:52,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:04:52,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:04:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:04:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:04:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:04:52,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:04:53,819 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:04:53,819 INFO L298 CfgBuilder]: Removed 23 assume(true) statements. [2020-11-29 22:04:53,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:04:53 BoogieIcfgContainer [2020-11-29 22:04:53,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:04:53,826 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:04:53,826 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:04:53,830 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:04:53,830 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:04:53,831 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:04:51" (1/3) ... [2020-11-29 22:04:53,832 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62d02ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:04:53, skipping insertion in model container [2020-11-29 22:04:53,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:04:53,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:51" (2/3) ... [2020-11-29 22:04:53,833 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62d02ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:04:53, skipping insertion in model container [2020-11-29 22:04:53,833 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:04:53,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:04:53" (3/3) ... [2020-11-29 22:04:53,835 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-11-29 22:04:53,897 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:04:53,898 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:04:53,898 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:04:53,899 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:04:53,899 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:04:53,899 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:04:53,899 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:04:53,899 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:04:53,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 304 states. [2020-11-29 22:04:53,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-11-29 22:04:53,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:04:53,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:04:53,981 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:53,981 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:53,981 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:04:53,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 304 states. [2020-11-29 22:04:53,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-11-29 22:04:53,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:04:53,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:04:54,001 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:54,002 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:54,011 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 276#L393true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 274#L404true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 180#L414true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 178#L425true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 88#L435true assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 85#L446true init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 143#L456true assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 142#L467true init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 50#L477true assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 48#L488true init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 261#L498true assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 260#L509true init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 172#L519true assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 171#L530true init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 225#L540true assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 223#L551true init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 134#L561true assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 133#L572true init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 35#L582true assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 34#L593true init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 242#L603true assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 241#L614true init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 305#L624true assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 304#L635true init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 207#L645true assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 206#L656true init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 118#L666true assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 117#L677true init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 21#L687true assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 20#L698true init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 59#L708true assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 77#L719true init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 270#L729true assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 267#L740true init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 175#L750true assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 174#L761true init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 81#L771true assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 80#L782true init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 138#L792true assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 137#L803true init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 40#L813true assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 39#L824true init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 253#L834true assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 252#L845true init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 163#L855true assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 162#L866true init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 216#L876true assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 215#L887true init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 127#L897true assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 129#L897-1true init_#res := init_~tmp___23~0; 68#L1066true main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 11#L21true assume !(0 == assume_abort_if_not_~cond); 43#L20true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 239#L1203-2true [2020-11-29 22:04:54,012 INFO L796 eck$LassoCheckResult]: Loop: 239#L1203-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 16#L109true assume !(0 != ~mode1~0 % 256); 73#L141true assume !(~r1~0 < 3); 69#L141-1true ~mode1~0 := 1; 12#L109-2true havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 282#L162true assume !(0 != ~mode2~0 % 256); 188#L194true assume !(~r2~0 < 3); 186#L194-1true ~mode2~0 := 1; 278#L162-2true havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 96#L215true assume !(0 != ~mode3~0 % 256); 148#L247true assume !(~r3~0 < 3); 145#L247-1true ~mode3~0 := 1; 87#L215-2true havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 52#L268true assume !(0 != ~mode4~0 % 256); 263#L300true assume !(~r4~0 < 3); 259#L300-1true ~mode4~0 := 1; 45#L268-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 224#L1074true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 226#L1074-1true check_#res := check_~tmp~1; 243#L1126true main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 300#L1246true assume !(0 == assert_~arg % 256); 269#L1241true main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 239#L1203-2true [2020-11-29 22:04:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:54,019 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 1 times [2020-11-29 22:04:54,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:54,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484756521] [2020-11-29 22:04:54,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:04:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:04:54,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484756521] [2020-11-29 22:04:54,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:04:54,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:04:54,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337838212] [2020-11-29 22:04:54,547 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:04:54,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:54,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1319514575, now seen corresponding path program 1 times [2020-11-29 22:04:54,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:54,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303735181] [2020-11-29 22:04:54,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:04:54,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:04:54,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303735181] [2020-11-29 22:04:54,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:04:54,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:04:54,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160013543] [2020-11-29 22:04:54,710 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:04:54,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:04:54,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:04:54,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:04:54,731 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-11-29 22:04:54,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:04:54,920 INFO L93 Difference]: Finished difference Result 307 states and 545 transitions. [2020-11-29 22:04:54,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:04:54,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 545 transitions. [2020-11-29 22:04:54,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-11-29 22:04:54,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 298 states and 528 transitions. [2020-11-29 22:04:54,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 298 [2020-11-29 22:04:54,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 298 [2020-11-29 22:04:54,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 528 transitions. [2020-11-29 22:04:54,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:04:54,968 INFO L691 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2020-11-29 22:04:54,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 528 transitions. [2020-11-29 22:04:55,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-29 22:04:55,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-29 22:04:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 528 transitions. [2020-11-29 22:04:55,022 INFO L714 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2020-11-29 22:04:55,023 INFO L594 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2020-11-29 22:04:55,023 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:04:55,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 298 states and 528 transitions. [2020-11-29 22:04:55,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-11-29 22:04:55,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:04:55,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:04:55,031 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:55,031 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:55,032 INFO L794 eck$LassoCheckResult]: Stem: 831#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 645#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 646#L393 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 895#L404 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 892#L414 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 797#L425 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 790#L435 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 677#L446 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 787#L456 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 739#L467 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 735#L477 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 733#L488 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 734#L498 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 726#L509 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 886#L519 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 825#L530 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 885#L540 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 641#L551 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 856#L561 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 711#L572 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 707#L582 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 702#L593 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 703#L603 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 701#L614 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 923#L624 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 912#L635 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 910#L645 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 840#L656 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 836#L666 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 630#L677 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 672#L687 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 670#L698 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 671#L708 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 664#L719 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 781#L729 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 778#L740 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 887#L750 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 785#L761 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 783#L771 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 652#L782 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 782#L792 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 720#L803 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 716#L813 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 714#L824 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 715#L834 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 713#L845 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 876#L855 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 813#L866 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 875#L876 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 850#L887 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 848#L897 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 681#L897-1 init_#res := init_~tmp___23~0; 771#L1066 main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 647#L21 assume !(0 == assume_abort_if_not_~cond); 648#L20 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 721#L1203-2 [2020-11-29 22:04:55,032 INFO L796 eck$LassoCheckResult]: Loop: 721#L1203-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 660#L109 assume !(0 != ~mode1~0 % 256); 662#L141 assume !(~r1~0 < 3); 772#L141-1 ~mode1~0 := 1; 649#L109-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 650#L162 assume !(0 != ~mode2~0 % 256); 899#L194 assume !(~r2~0 < 3); 693#L194-1 ~mode2~0 := 1; 779#L162-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 805#L215 assume !(0 != ~mode3~0 % 256); 807#L247 assume !(~r3~0 < 3); 758#L247-1 ~mode3~0 := 1; 786#L215-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 740#L268 assume !(0 != ~mode4~0 % 256); 742#L300 assume !(~r4~0 < 3); 832#L300-1 ~mode4~0 := 1; 723#L268-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 724#L1074 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 883#L1075 assume ~st1~0 + ~nl1~0 <= 1; 884#L1076 assume ~st2~0 + ~nl2~0 <= 1; 766#L1077 assume ~st3~0 + ~nl3~0 <= 1; 637#L1078 assume ~st4~0 + ~nl4~0 <= 1; 638#L1079 assume ~r1~0 >= 3; 704#L1083 assume ~r1~0 < 3; 705#L1088 assume ~r1~0 >= 3; 767#L1093 assume ~r1~0 < 3;check_~tmp~1 := 1; 879#L1074-1 check_#res := check_~tmp~1; 915#L1126 main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 924#L1246 assume !(0 == assert_~arg % 256); 925#L1241 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 721#L1203-2 [2020-11-29 22:04:55,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:55,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 2 times [2020-11-29 22:04:55,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:55,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580278663] [2020-11-29 22:04:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:04:55,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:04:55,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580278663] [2020-11-29 22:04:55,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:04:55,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:04:55,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136441419] [2020-11-29 22:04:55,201 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:04:55,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:55,202 INFO L82 PathProgramCache]: Analyzing trace with hash 94444544, now seen corresponding path program 1 times [2020-11-29 22:04:55,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:55,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70232720] [2020-11-29 22:04:55,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:04:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:04:55,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70232720] [2020-11-29 22:04:55,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:04:55,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:04:55,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986372403] [2020-11-29 22:04:55,264 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:04:55,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:04:55,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:04:55,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:04:55,278 INFO L87 Difference]: Start difference. First operand 298 states and 528 transitions. cyclomatic complexity: 231 Second operand 3 states. [2020-11-29 22:04:55,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:04:55,343 INFO L93 Difference]: Finished difference Result 382 states and 661 transitions. [2020-11-29 22:04:55,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:04:55,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 382 states and 661 transitions. [2020-11-29 22:04:55,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 190 [2020-11-29 22:04:55,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 382 states to 382 states and 661 transitions. [2020-11-29 22:04:55,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 382 [2020-11-29 22:04:55,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 382 [2020-11-29 22:04:55,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 382 states and 661 transitions. [2020-11-29 22:04:55,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:04:55,358 INFO L691 BuchiCegarLoop]: Abstraction has 382 states and 661 transitions. [2020-11-29 22:04:55,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states and 661 transitions. [2020-11-29 22:04:55,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2020-11-29 22:04:55,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-11-29 22:04:55,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 661 transitions. [2020-11-29 22:04:55,386 INFO L714 BuchiCegarLoop]: Abstraction has 382 states and 661 transitions. [2020-11-29 22:04:55,386 INFO L594 BuchiCegarLoop]: Abstraction has 382 states and 661 transitions. [2020-11-29 22:04:55,386 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:04:55,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 382 states and 661 transitions. [2020-11-29 22:04:55,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 190 [2020-11-29 22:04:55,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:04:55,390 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:04:55,393 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:55,393 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:55,393 INFO L794 eck$LassoCheckResult]: Stem: 1518#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 1334#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 1335#L393 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1584#L404 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1580#L414 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 1485#L425 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1478#L435 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 1366#L446 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 1477#L456 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 1427#L467 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1423#L477 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 1421#L488 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1422#L498 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 1414#L509 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1574#L519 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 1512#L530 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 1573#L540 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 1330#L551 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 1544#L561 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 1399#L572 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 1395#L582 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 1391#L593 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 1392#L603 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 1390#L614 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 1613#L624 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 1600#L635 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 1598#L645 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 1528#L656 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 1525#L666 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 1319#L677 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 1363#L687 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 1359#L698 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 1360#L708 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 1353#L719 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 1468#L729 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 1466#L740 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 1575#L750 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 1473#L761 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 1471#L771 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 1341#L782 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 1470#L792 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 1408#L803 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 1404#L813 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 1402#L824 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 1403#L834 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 1401#L845 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 1564#L855 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 1499#L866 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 1563#L876 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 1538#L887 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 1536#L897 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 1372#L897-1 init_#res := init_~tmp___23~0; 1458#L1066 main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 1336#L21 assume !(0 == assume_abort_if_not_~cond); 1337#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; 1409#L1203-2 [2020-11-29 22:04:55,394 INFO L796 eck$LassoCheckResult]: Loop: 1409#L1203-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 1622#L109 assume !(0 != ~mode1~0 % 256); 1621#L141 assume ~r1~0 < 3; 1357#L142 assume !(0 != ~ep12~0 % 256); 1343#L142-2 assume !(0 != ~ep13~0 % 256); 1344#L145-1 assume !(0 != ~ep14~0 % 256); 1602#L141-1 ~mode1~0 := 1; 1527#L109-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 1682#L162 assume !(0 != ~mode2~0 % 256); 1683#L194 assume !(~r2~0 < 3); 1669#L194-1 ~mode2~0 := 1; 1664#L162-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 1662#L215 assume !(0 != ~mode3~0 % 256); 1663#L247 assume !(~r3~0 < 3); 1651#L247-1 ~mode3~0 := 1; 1650#L215-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 1646#L268 assume !(0 != ~mode4~0 % 256); 1642#L300 assume !(~r4~0 < 3); 1635#L300-1 ~mode4~0 := 1; 1634#L268-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1633#L1074 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1632#L1075 assume ~st1~0 + ~nl1~0 <= 1; 1631#L1076 assume ~st2~0 + ~nl2~0 <= 1; 1630#L1077 assume ~st3~0 + ~nl3~0 <= 1; 1629#L1078 assume ~st4~0 + ~nl4~0 <= 1; 1628#L1079 assume !(~r1~0 >= 3); 1615#L1082 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1616#L1083 assume ~r1~0 < 3; 1627#L1088 assume !(~r1~0 >= 3); 1619#L1092 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1620#L1093 assume ~r1~0 < 3;check_~tmp~1 := 1; 1626#L1074-1 check_#res := check_~tmp~1; 1625#L1126 main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1624#L1246 assume !(0 == assert_~arg % 256); 1623#L1241 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 1409#L1203-2 [2020-11-29 22:04:55,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:55,395 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 3 times [2020-11-29 22:04:55,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:55,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440988504] [2020-11-29 22:04:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:04:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:04:55,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440988504] [2020-11-29 22:04:55,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:04:55,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:04:55,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060705208] [2020-11-29 22:04:55,532 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:04:55,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:55,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1683797404, now seen corresponding path program 1 times [2020-11-29 22:04:55,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:55,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499336217] [2020-11-29 22:04:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:55,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:55,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:55,605 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:04:56,281 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 145 [2020-11-29 22:04:56,871 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-11-29 22:04:56,909 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:04:56,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:04:56,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:04:56,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:04:56,910 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:04:56,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:04:56,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:04:56,911 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:04:56,911 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-29 22:04:56,911 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:04:56,911 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:04:56,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:56,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:56,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:56,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:56,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:56,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:57,620 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 22:04:58,027 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 22:04:58,073 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:04:58,074 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:04:58,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:04:58,081 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:04:58,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:04:58,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:04:58,216 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:04:58,217 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:04:58,218 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:04:58,218 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:04:58,218 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:04:58,218 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:04:58,218 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:04:58,218 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:04:58,218 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:04:58,218 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-29 22:04:58,218 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:04:58,218 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:04:58,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:04:58,874 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 22:04:59,324 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 22:04:59,423 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:04:59,428 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,454 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:04:59,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:04:59,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:04:59,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,642 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 [2020-11-29 22:04:59,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:04:59,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:04:59,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,893 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 [2020-11-29 22:04:59,896 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,931 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,961 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:04:59,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:04:59,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:04:59,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:04:59,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:04:59,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:04:59,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:04:59,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:04:59,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:04:59,995 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:05:00,004 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:05:00,004 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_a2cf78d1-202d-48a5-8f59-d5b169c73a8b/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 [2020-11-29 22:05:00,012 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:05:00,012 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:05:00,012 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:05:00,013 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 15 Supporting invariants [] [2020-11-29 22:05:00,046 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:05:00,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:05:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:05:00,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:05:00,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:05:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:05:00,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:05:00,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:05:00,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:05:00,398 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 22:05:00,399 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 382 states and 661 transitions. cyclomatic complexity: 280 Second operand 3 states. [2020-11-29 22:05:00,532 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 382 states and 661 transitions. cyclomatic complexity: 280. Second operand 3 states. Result 571 states and 968 transitions. Complement of second has 4 states. [2020-11-29 22:05:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 22:05:00,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:05:00,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2020-11-29 22:05:00,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 55 letters. Loop has 35 letters. [2020-11-29 22:05:00,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:05:00,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 90 letters. Loop has 35 letters. [2020-11-29 22:05:00,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:05:00,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 55 letters. Loop has 70 letters. [2020-11-29 22:05:00,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:05:00,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 571 states and 968 transitions. [2020-11-29 22:05:00,549 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:05:00,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 571 states to 0 states and 0 transitions. [2020-11-29 22:05:00,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:05:00,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:05:00,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:05:00,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:05:00,550 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:05:00,551 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:05:00,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:05:00,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:05:00,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:05:00,557 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-11-29 22:05:00,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:05:00,558 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 22:05:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:05:00,558 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 22:05:00,558 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:05:00,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:05:00,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:05:00,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:05:00,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:05:00,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:05:00,559 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:05:00,559 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:05:00,559 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:05:00,559 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 22:05:00,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:05:00,560 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:05:00,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 22:05:00,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:05:00 BoogieIcfgContainer [2020-11-29 22:05:00,565 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:05:00,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:05:00,566 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:05:00,566 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:05:00,567 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:04:53" (3/4) ... [2020-11-29 22:05:00,570 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:05:00,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:05:00,578 INFO L168 Benchmark]: Toolchain (without parser) took 9316.26 ms. Allocated memory was 92.3 MB in the beginning and 169.9 MB in the end (delta: 77.6 MB). Free memory was 59.6 MB in the beginning and 109.9 MB in the end (delta: -50.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:00,578 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 69.2 MB. Free memory was 31.6 MB in the beginning and 31.5 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:05:00,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.95 ms. Allocated memory is still 92.3 MB. Free memory was 59.3 MB in the beginning and 58.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:00,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.29 ms. Allocated memory is still 92.3 MB. Free memory was 58.0 MB in the beginning and 53.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:00,580 INFO L168 Benchmark]: Boogie Preprocessor took 62.37 ms. Allocated memory is still 92.3 MB. Free memory was 53.4 MB in the beginning and 49.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:00,584 INFO L168 Benchmark]: RCFGBuilder took 1773.27 ms. Allocated memory was 92.3 MB in the beginning and 140.5 MB in the end (delta: 48.2 MB). Free memory was 49.7 MB in the beginning and 71.8 MB in the end (delta: -22.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:00,584 INFO L168 Benchmark]: BuchiAutomizer took 6739.85 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 71.8 MB in the beginning and 109.9 MB in the end (delta: -38.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:05:00,585 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 169.9 MB. Free memory is still 109.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:05:00,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 69.2 MB. Free memory was 31.6 MB in the beginning and 31.5 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 621.95 ms. Allocated memory is still 92.3 MB. Free memory was 59.3 MB in the beginning and 58.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.29 ms. Allocated memory is still 92.3 MB. Free memory was 58.0 MB in the beginning and 53.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.37 ms. Allocated memory is still 92.3 MB. Free memory was 53.4 MB in the beginning and 49.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1773.27 ms. Allocated memory was 92.3 MB in the beginning and 140.5 MB in the end (delta: 48.2 MB). Free memory was 49.7 MB in the beginning and 71.8 MB in the end (delta: -22.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6739.85 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 71.8 MB in the beginning and 109.9 MB in the end (delta: -38.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.53 ms. Allocated memory is still 169.9 MB. Free memory is still 109.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 15 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 382 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1591 SDtfs, 644 SDslu, 2287 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: inital194 mio100 ax100 hnf97 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...