./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/systemc/toy.cil.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_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/systemc/toy.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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 1ba07ae5f9ba9742e473cf2ed151649cad165d7c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:20:14,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:20:14,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:20:14,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:20:14,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:20:14,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:20:14,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:20:14,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:20:14,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:20:14,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:20:14,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:20:14,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:20:14,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:20:14,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:20:14,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:20:14,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:20:14,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:20:14,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:20:14,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:20:14,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:20:14,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:20:14,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:20:14,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:20:14,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:20:14,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:20:14,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:20:14,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:20:14,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:20:14,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:20:14,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:20:14,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:20:14,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:20:14,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:20:14,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:20:14,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:20:14,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:20:14,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:20:14,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:20:14,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:20:14,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:20:14,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:20:14,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:20:14,645 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:20:14,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:20:14,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:20:14,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:20:14,653 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:20:14,653 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:20:14,654 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:20:14,654 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:20:14,654 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:20:14,654 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:20:14,656 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:20:14,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:20:14,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:20:14,657 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:20:14,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:20:14,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:20:14,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:20:14,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:20:14,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:20:14,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:20:14,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:20:14,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:20:14,659 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:20:14,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:20:14,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:20:14,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:20:14,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:20:14,660 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:20:14,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:20:14,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:20:14,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:20:14,663 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:20:14,665 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:20:14,665 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_7e31ccdf-eaff-4e4b-a4c6-712934957460/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ba07ae5f9ba9742e473cf2ed151649cad165d7c [2020-11-29 18:20:15,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:20:15,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:20:15,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:20:15,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:20:15,070 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:20:15,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/../../sv-benchmarks/c/systemc/toy.cil.c [2020-11-29 18:20:15,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/data/136a89f1d/eba58c1cbf434106902d9122c0453b8a/FLAGb017a89ad [2020-11-29 18:20:15,868 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:20:15,869 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/sv-benchmarks/c/systemc/toy.cil.c [2020-11-29 18:20:15,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/data/136a89f1d/eba58c1cbf434106902d9122c0453b8a/FLAGb017a89ad [2020-11-29 18:20:16,157 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/data/136a89f1d/eba58c1cbf434106902d9122c0453b8a [2020-11-29 18:20:16,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:20:16,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:20:16,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:20:16,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:20:16,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:20:16,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f677e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16, skipping insertion in model container [2020-11-29 18:20:16,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:20:16,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:20:16,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:20:16,588 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:20:16,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:20:16,689 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:20:16,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16 WrapperNode [2020-11-29 18:20:16,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:20:16,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:20:16,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:20:16,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:20:16,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:20:16,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:20:16,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:20:16,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:20:16,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... [2020-11-29 18:20:16,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:20:16,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:20:16,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:20:16,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:20:16,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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 18:20:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:20:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:20:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:20:16,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:20:17,914 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:20:17,918 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-29 18:20:17,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:17 BoogieIcfgContainer [2020-11-29 18:20:17,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:20:17,923 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:20:17,923 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:20:17,927 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:20:17,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:20:17,929 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:20:16" (1/3) ... [2020-11-29 18:20:17,930 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b8d3fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:20:17, skipping insertion in model container [2020-11-29 18:20:17,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:20:17,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:16" (2/3) ... [2020-11-29 18:20:17,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b8d3fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:20:17, skipping insertion in model container [2020-11-29 18:20:17,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:20:17,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:17" (3/3) ... [2020-11-29 18:20:17,935 INFO L373 chiAutomizerObserver]: Analyzing ICFG toy.cil.c [2020-11-29 18:20:18,002 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:20:18,002 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:20:18,003 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:20:18,003 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:20:18,003 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:20:18,003 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:20:18,003 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:20:18,003 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:20:18,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2020-11-29 18:20:18,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 91 [2020-11-29 18:20:18,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:18,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:18,104 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] [2020-11-29 18:20:18,104 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] [2020-11-29 18:20:18,105 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:20:18,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2020-11-29 18:20:18,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 91 [2020-11-29 18:20:18,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:18,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:18,132 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] [2020-11-29 18:20:18,132 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] [2020-11-29 18:20:18,143 INFO L794 eck$LassoCheckResult]: Stem: 97#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 12#L-1true havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 51#L400true assume !(1 == ~c_req_up~0); 36#L400-2true assume !(1 == ~wl_i~0);~wl_st~0 := 2; 53#L411-1true assume !(1 == ~c1_i~0);~c1_st~0 := 2; 73#L416-1true assume 1 == ~c2_i~0;~c2_st~0 := 0; 84#L421-1true assume !(1 == ~wb_i~0);~wb_st~0 := 2; 108#L426-1true assume !(1 == ~r_i~0);~r_st~0 := 2; 4#L431-1true assume !(0 == ~e_f~0); 26#L436-1true assume !(0 == ~e_g~0); 54#L441-1true assume !(0 == ~e_e~0); 75#L446-1true assume !(0 == ~e_c~0); 103#L451-1true assume !(0 == ~e_wl~0); 121#L456-1true assume !(1 == ~wl_pc~0); 74#L468true assume !(2 == ~wl_pc~0); 43#L469true assume !(1 == ~c1_pc~0); 93#L479true assume !(1 == ~c2_pc~0); 45#L488true assume !(1 == ~wb_pc~0); 14#L497true assume !(1 == ~e_c~0); 100#L506-1true assume !(1 == ~e_e~0); 118#L511-1true assume !(1 == ~e_f~0); 17#L516-1true assume !(1 == ~e_g~0); 46#L521-1true assume !(1 == ~e_c~0); 70#L526-1true assume !(1 == ~e_wl~0); 125#L668-1true [2020-11-29 18:20:18,144 INFO L796 eck$LassoCheckResult]: Loop: 125#L668-1true assume !false; 32#L538true start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 21#L373true assume !true; 52#L389true start_simulation_~kernel_st~0 := 2; 9#L544true assume !(1 == ~c_req_up~0); 119#L544-2true start_simulation_~kernel_st~0 := 3; 89#L556true assume 0 == ~e_f~0;~e_f~0 := 1; 92#L556-2true assume 0 == ~e_g~0;~e_g~0 := 1; 111#L561-1true assume 0 == ~e_e~0;~e_e~0 := 1; 11#L566-1true assume 0 == ~e_c~0;~e_c~0 := 1; 33#L571-1true assume 0 == ~e_wl~0;~e_wl~0 := 1; 60#L576-1true assume !(1 == ~wl_pc~0); 8#L588true assume !(2 == ~wl_pc~0); 88#L589true assume !(1 == ~c1_pc~0); 6#L599true assume !(1 == ~c2_pc~0); 105#L608true assume !(1 == ~wb_pc~0); 62#L617true assume !(1 == ~e_c~0); 28#L626-1true assume 1 == ~e_e~0;~e_e~0 := 2; 58#L631-1true assume 1 == ~e_f~0;~e_f~0 := 2; 81#L636-1true assume 1 == ~e_g~0;~e_g~0 := 2; 106#L641-1true assume 1 == ~e_c~0;~e_c~0 := 2; 127#L646-1true assume 1 == ~e_wl~0;~e_wl~0 := 2; 24#L651-1true assume 0 == ~wl_st~0; 125#L668-1true [2020-11-29 18:20:18,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:18,158 INFO L82 PathProgramCache]: Analyzing trace with hash -2133486251, now seen corresponding path program 1 times [2020-11-29 18:20:18,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:18,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095218505] [2020-11-29 18:20:18,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:18,451 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 18:20:18,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095218505] [2020-11-29 18:20:18,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:18,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:18,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019871946] [2020-11-29 18:20:18,464 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:18,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1424502649, now seen corresponding path program 1 times [2020-11-29 18:20:18,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:18,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627519030] [2020-11-29 18:20:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:18,503 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 18:20:18,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627519030] [2020-11-29 18:20:18,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:18,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:20:18,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980992582] [2020-11-29 18:20:18,508 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:20:18,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:18,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:20:18,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:20:18,531 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2020-11-29 18:20:18,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:18,565 INFO L93 Difference]: Finished difference Result 125 states and 219 transitions. [2020-11-29 18:20:18,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:20:18,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 219 transitions. [2020-11-29 18:20:18,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-11-29 18:20:18,582 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 120 states and 214 transitions. [2020-11-29 18:20:18,583 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2020-11-29 18:20:18,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2020-11-29 18:20:18,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 214 transitions. [2020-11-29 18:20:18,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:20:18,589 INFO L691 BuchiCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-11-29 18:20:18,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 214 transitions. [2020-11-29 18:20:18,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-11-29 18:20:18,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-29 18:20:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-11-29 18:20:18,636 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-11-29 18:20:18,637 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-11-29 18:20:18,637 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:20:18,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 214 transitions. [2020-11-29 18:20:18,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-11-29 18:20:18,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:18,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:18,644 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] [2020-11-29 18:20:18,644 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] [2020-11-29 18:20:18,645 INFO L794 eck$LassoCheckResult]: Stem: 372#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 284#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 285#L400 assume !(1 == ~c_req_up~0); 320#L400-2 assume !(1 == ~wl_i~0);~wl_st~0 := 2; 321#L411-1 assume !(1 == ~c1_i~0);~c1_st~0 := 2; 340#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 355#L421-1 assume !(1 == ~wb_i~0);~wb_st~0 := 2; 364#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 263#L431-1 assume !(0 == ~e_f~0); 264#L436-1 assume !(0 == ~e_g~0); 307#L441-1 assume !(0 == ~e_e~0); 341#L446-1 assume !(0 == ~e_c~0); 358#L451-1 assume !(0 == ~e_wl~0); 375#L456-1 assume !(1 == ~wl_pc~0); 356#L468 assume !(2 == ~wl_pc~0); 330#L469 assume !(1 == ~c1_pc~0); 329#L479 assume !(1 == ~c2_pc~0); 331#L488 assume !(1 == ~wb_pc~0); 288#L497 assume !(1 == ~e_c~0); 289#L506-1 assume !(1 == ~e_e~0); 373#L511-1 assume !(1 == ~e_f~0); 290#L516-1 assume !(1 == ~e_g~0); 291#L521-1 assume !(1 == ~e_c~0); 333#L526-1 assume !(1 == ~e_wl~0); 261#L668-1 [2020-11-29 18:20:18,652 INFO L796 eck$LassoCheckResult]: Loop: 261#L668-1 assume !false; 316#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 298#L373 assume !false; 299#L291 assume !(0 == ~wl_st~0); 342#L295 assume !(0 == ~c1_st~0); 343#L298 assume !(0 == ~c2_st~0); 338#L301 assume !(0 == ~wb_st~0); 311#L304 assume !(0 == ~r_st~0); 313#L389 start_simulation_~kernel_st~0 := 2; 277#L544 assume !(1 == ~c_req_up~0); 278#L544-2 start_simulation_~kernel_st~0 := 3; 367#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 368#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 370#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 282#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 283#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 317#L576-1 assume !(1 == ~wl_pc~0); 274#L588 assume !(2 == ~wl_pc~0); 275#L589 assume !(1 == ~c1_pc~0); 268#L599 assume !(1 == ~c2_pc~0); 270#L608 assume !(1 == ~wb_pc~0); 302#L617 assume !(1 == ~e_c~0); 308#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 309#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 346#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 363#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 376#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 303#L651-1 assume 0 == ~wl_st~0; 261#L668-1 [2020-11-29 18:20:18,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:18,654 INFO L82 PathProgramCache]: Analyzing trace with hash -2133486251, now seen corresponding path program 2 times [2020-11-29 18:20:18,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:18,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970046293] [2020-11-29 18:20:18,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:18,719 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 18:20:18,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970046293] [2020-11-29 18:20:18,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:18,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:18,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485562802] [2020-11-29 18:20:18,720 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:18,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:18,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1624185410, now seen corresponding path program 1 times [2020-11-29 18:20:18,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:18,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810568591] [2020-11-29 18:20:18,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:18,755 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 18:20:18,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810568591] [2020-11-29 18:20:18,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:18,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:18,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928139880] [2020-11-29 18:20:18,756 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:20:18,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:18,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:18,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:18,758 INFO L87 Difference]: Start difference. First operand 120 states and 214 transitions. cyclomatic complexity: 95 Second operand 3 states. [2020-11-29 18:20:18,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:18,792 INFO L93 Difference]: Finished difference Result 120 states and 213 transitions. [2020-11-29 18:20:18,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:18,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 213 transitions. [2020-11-29 18:20:18,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-11-29 18:20:18,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 213 transitions. [2020-11-29 18:20:18,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2020-11-29 18:20:18,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2020-11-29 18:20:18,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 213 transitions. [2020-11-29 18:20:18,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:20:18,800 INFO L691 BuchiCegarLoop]: Abstraction has 120 states and 213 transitions. [2020-11-29 18:20:18,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 213 transitions. [2020-11-29 18:20:18,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-11-29 18:20:18,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-29 18:20:18,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 213 transitions. [2020-11-29 18:20:18,810 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 213 transitions. [2020-11-29 18:20:18,810 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 213 transitions. [2020-11-29 18:20:18,810 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:20:18,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 213 transitions. [2020-11-29 18:20:18,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-11-29 18:20:18,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:18,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:18,814 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] [2020-11-29 18:20:18,814 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] [2020-11-29 18:20:18,814 INFO L794 eck$LassoCheckResult]: Stem: 619#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 531#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 532#L400 assume !(1 == ~c_req_up~0); 567#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 568#L411-1 assume !(1 == ~c1_i~0);~c1_st~0 := 2; 587#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 602#L421-1 assume !(1 == ~wb_i~0);~wb_st~0 := 2; 611#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 510#L431-1 assume !(0 == ~e_f~0); 511#L436-1 assume !(0 == ~e_g~0); 554#L441-1 assume !(0 == ~e_e~0); 588#L446-1 assume !(0 == ~e_c~0); 605#L451-1 assume !(0 == ~e_wl~0); 622#L456-1 assume !(1 == ~wl_pc~0); 603#L468 assume !(2 == ~wl_pc~0); 577#L469 assume !(1 == ~c1_pc~0); 576#L479 assume !(1 == ~c2_pc~0); 578#L488 assume !(1 == ~wb_pc~0); 535#L497 assume !(1 == ~e_c~0); 536#L506-1 assume !(1 == ~e_e~0); 620#L511-1 assume !(1 == ~e_f~0); 537#L516-1 assume !(1 == ~e_g~0); 538#L521-1 assume !(1 == ~e_c~0); 580#L526-1 assume !(1 == ~e_wl~0); 508#L668-1 [2020-11-29 18:20:18,815 INFO L796 eck$LassoCheckResult]: Loop: 508#L668-1 assume !false; 563#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 545#L373 assume !false; 546#L291 assume !(0 == ~wl_st~0); 589#L295 assume !(0 == ~c1_st~0); 590#L298 assume !(0 == ~c2_st~0); 585#L301 assume !(0 == ~wb_st~0); 558#L304 assume !(0 == ~r_st~0); 560#L389 start_simulation_~kernel_st~0 := 2; 524#L544 assume !(1 == ~c_req_up~0); 525#L544-2 start_simulation_~kernel_st~0 := 3; 614#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 615#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 617#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 529#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 530#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 564#L576-1 assume !(1 == ~wl_pc~0); 521#L588 assume !(2 == ~wl_pc~0); 522#L589 assume !(1 == ~c1_pc~0); 515#L599 assume !(1 == ~c2_pc~0); 517#L608 assume !(1 == ~wb_pc~0); 549#L617 assume !(1 == ~e_c~0); 555#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 556#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 593#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 610#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 623#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 550#L651-1 assume 0 == ~wl_st~0; 508#L668-1 [2020-11-29 18:20:18,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:18,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1738779219, now seen corresponding path program 1 times [2020-11-29 18:20:18,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:18,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254549850] [2020-11-29 18:20:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:18,869 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 18:20:18,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254549850] [2020-11-29 18:20:18,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:18,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:18,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659102524] [2020-11-29 18:20:18,870 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:18,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:18,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1624185410, now seen corresponding path program 2 times [2020-11-29 18:20:18,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:18,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777583707] [2020-11-29 18:20:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:18,900 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 18:20:18,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777583707] [2020-11-29 18:20:18,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:18,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:18,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593290667] [2020-11-29 18:20:18,902 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:20:18,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:18,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:18,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:18,904 INFO L87 Difference]: Start difference. First operand 120 states and 213 transitions. cyclomatic complexity: 94 Second operand 3 states. [2020-11-29 18:20:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:18,929 INFO L93 Difference]: Finished difference Result 120 states and 212 transitions. [2020-11-29 18:20:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:18,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 212 transitions. [2020-11-29 18:20:18,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-11-29 18:20:18,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 212 transitions. [2020-11-29 18:20:18,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2020-11-29 18:20:18,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2020-11-29 18:20:18,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 212 transitions. [2020-11-29 18:20:18,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:20:18,944 INFO L691 BuchiCegarLoop]: Abstraction has 120 states and 212 transitions. [2020-11-29 18:20:18,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 212 transitions. [2020-11-29 18:20:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-11-29 18:20:18,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-29 18:20:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 212 transitions. [2020-11-29 18:20:18,956 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 212 transitions. [2020-11-29 18:20:18,957 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 212 transitions. [2020-11-29 18:20:18,957 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 18:20:18,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 212 transitions. [2020-11-29 18:20:18,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-11-29 18:20:18,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:18,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:18,963 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] [2020-11-29 18:20:18,964 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] [2020-11-29 18:20:18,964 INFO L794 eck$LassoCheckResult]: Stem: 866#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 778#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 779#L400 assume !(1 == ~c_req_up~0); 814#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 815#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 834#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 849#L421-1 assume !(1 == ~wb_i~0);~wb_st~0 := 2; 858#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 757#L431-1 assume !(0 == ~e_f~0); 758#L436-1 assume !(0 == ~e_g~0); 801#L441-1 assume !(0 == ~e_e~0); 835#L446-1 assume !(0 == ~e_c~0); 852#L451-1 assume !(0 == ~e_wl~0); 869#L456-1 assume !(1 == ~wl_pc~0); 850#L468 assume !(2 == ~wl_pc~0); 824#L469 assume !(1 == ~c1_pc~0); 823#L479 assume !(1 == ~c2_pc~0); 825#L488 assume !(1 == ~wb_pc~0); 782#L497 assume !(1 == ~e_c~0); 783#L506-1 assume !(1 == ~e_e~0); 867#L511-1 assume !(1 == ~e_f~0); 784#L516-1 assume !(1 == ~e_g~0); 785#L521-1 assume !(1 == ~e_c~0); 827#L526-1 assume !(1 == ~e_wl~0); 755#L668-1 [2020-11-29 18:20:18,964 INFO L796 eck$LassoCheckResult]: Loop: 755#L668-1 assume !false; 810#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 792#L373 assume !false; 793#L291 assume !(0 == ~wl_st~0); 836#L295 assume !(0 == ~c1_st~0); 837#L298 assume !(0 == ~c2_st~0); 832#L301 assume !(0 == ~wb_st~0); 805#L304 assume !(0 == ~r_st~0); 807#L389 start_simulation_~kernel_st~0 := 2; 771#L544 assume !(1 == ~c_req_up~0); 772#L544-2 start_simulation_~kernel_st~0 := 3; 861#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 862#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 864#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 776#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 777#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 811#L576-1 assume !(1 == ~wl_pc~0); 768#L588 assume !(2 == ~wl_pc~0); 769#L589 assume !(1 == ~c1_pc~0); 762#L599 assume !(1 == ~c2_pc~0); 764#L608 assume !(1 == ~wb_pc~0); 796#L617 assume !(1 == ~e_c~0); 802#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 803#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 840#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 857#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 870#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 797#L651-1 assume 0 == ~wl_st~0; 755#L668-1 [2020-11-29 18:20:18,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:18,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1738539627, now seen corresponding path program 1 times [2020-11-29 18:20:18,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:18,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263040686] [2020-11-29 18:20:18,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:19,062 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 18:20:19,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263040686] [2020-11-29 18:20:19,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:19,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:19,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635464247] [2020-11-29 18:20:19,064 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:19,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:19,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1624185410, now seen corresponding path program 3 times [2020-11-29 18:20:19,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:19,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896718125] [2020-11-29 18:20:19,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:19,157 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 18:20:19,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896718125] [2020-11-29 18:20:19,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:19,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:19,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376209733] [2020-11-29 18:20:19,159 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:20:19,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:19,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:19,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:19,180 INFO L87 Difference]: Start difference. First operand 120 states and 212 transitions. cyclomatic complexity: 93 Second operand 3 states. [2020-11-29 18:20:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:19,215 INFO L93 Difference]: Finished difference Result 120 states and 211 transitions. [2020-11-29 18:20:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:19,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 211 transitions. [2020-11-29 18:20:19,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-11-29 18:20:19,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 211 transitions. [2020-11-29 18:20:19,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2020-11-29 18:20:19,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2020-11-29 18:20:19,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 211 transitions. [2020-11-29 18:20:19,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:20:19,221 INFO L691 BuchiCegarLoop]: Abstraction has 120 states and 211 transitions. [2020-11-29 18:20:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 211 transitions. [2020-11-29 18:20:19,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-11-29 18:20:19,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-29 18:20:19,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 211 transitions. [2020-11-29 18:20:19,239 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 211 transitions. [2020-11-29 18:20:19,242 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 211 transitions. [2020-11-29 18:20:19,242 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 18:20:19,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 211 transitions. [2020-11-29 18:20:19,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-11-29 18:20:19,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:19,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:19,245 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] [2020-11-29 18:20:19,248 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] [2020-11-29 18:20:19,248 INFO L794 eck$LassoCheckResult]: Stem: 1113#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 1025#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 1026#L400 assume !(1 == ~c_req_up~0); 1061#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 1062#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 1081#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 1096#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 1105#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 1004#L431-1 assume !(0 == ~e_f~0); 1005#L436-1 assume !(0 == ~e_g~0); 1048#L441-1 assume !(0 == ~e_e~0); 1082#L446-1 assume !(0 == ~e_c~0); 1099#L451-1 assume !(0 == ~e_wl~0); 1116#L456-1 assume !(1 == ~wl_pc~0); 1097#L468 assume !(2 == ~wl_pc~0); 1071#L469 assume !(1 == ~c1_pc~0); 1070#L479 assume !(1 == ~c2_pc~0); 1072#L488 assume !(1 == ~wb_pc~0); 1029#L497 assume !(1 == ~e_c~0); 1030#L506-1 assume !(1 == ~e_e~0); 1114#L511-1 assume !(1 == ~e_f~0); 1031#L516-1 assume !(1 == ~e_g~0); 1032#L521-1 assume !(1 == ~e_c~0); 1074#L526-1 assume !(1 == ~e_wl~0); 1002#L668-1 [2020-11-29 18:20:19,249 INFO L796 eck$LassoCheckResult]: Loop: 1002#L668-1 assume !false; 1057#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 1039#L373 assume !false; 1040#L291 assume !(0 == ~wl_st~0); 1083#L295 assume !(0 == ~c1_st~0); 1084#L298 assume !(0 == ~c2_st~0); 1079#L301 assume !(0 == ~wb_st~0); 1052#L304 assume !(0 == ~r_st~0); 1054#L389 start_simulation_~kernel_st~0 := 2; 1018#L544 assume !(1 == ~c_req_up~0); 1019#L544-2 start_simulation_~kernel_st~0 := 3; 1108#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 1109#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 1111#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 1023#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 1024#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 1058#L576-1 assume !(1 == ~wl_pc~0); 1015#L588 assume !(2 == ~wl_pc~0); 1016#L589 assume !(1 == ~c1_pc~0); 1009#L599 assume !(1 == ~c2_pc~0); 1011#L608 assume !(1 == ~wb_pc~0); 1043#L617 assume !(1 == ~e_c~0); 1049#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 1050#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 1087#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 1104#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 1117#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 1044#L651-1 assume 0 == ~wl_st~0; 1002#L668-1 [2020-11-29 18:20:19,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:19,251 INFO L82 PathProgramCache]: Analyzing trace with hash 255605079, now seen corresponding path program 1 times [2020-11-29 18:20:19,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:19,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024871063] [2020-11-29 18:20:19,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:19,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:19,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:19,338 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:19,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1624185410, now seen corresponding path program 4 times [2020-11-29 18:20:19,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:19,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145104633] [2020-11-29 18:20:19,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:19,366 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 18:20:19,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145104633] [2020-11-29 18:20:19,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:19,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:19,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092524217] [2020-11-29 18:20:19,367 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:20:19,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:19,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:19,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:19,368 INFO L87 Difference]: Start difference. First operand 120 states and 211 transitions. cyclomatic complexity: 92 Second operand 3 states. [2020-11-29 18:20:19,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:19,465 INFO L93 Difference]: Finished difference Result 152 states and 271 transitions. [2020-11-29 18:20:19,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:19,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 271 transitions. [2020-11-29 18:20:19,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 105 [2020-11-29 18:20:19,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 152 states and 271 transitions. [2020-11-29 18:20:19,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2020-11-29 18:20:19,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2020-11-29 18:20:19,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 271 transitions. [2020-11-29 18:20:19,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:20:19,480 INFO L691 BuchiCegarLoop]: Abstraction has 152 states and 271 transitions. [2020-11-29 18:20:19,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 271 transitions. [2020-11-29 18:20:19,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-11-29 18:20:19,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-29 18:20:19,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 271 transitions. [2020-11-29 18:20:19,498 INFO L714 BuchiCegarLoop]: Abstraction has 152 states and 271 transitions. [2020-11-29 18:20:19,499 INFO L594 BuchiCegarLoop]: Abstraction has 152 states and 271 transitions. [2020-11-29 18:20:19,499 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 18:20:19,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 271 transitions. [2020-11-29 18:20:19,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 105 [2020-11-29 18:20:19,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:19,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:19,518 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] [2020-11-29 18:20:19,518 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] [2020-11-29 18:20:19,519 INFO L794 eck$LassoCheckResult]: Stem: 1393#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 1304#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 1305#L400 assume !(1 == ~c_req_up~0); 1340#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 1341#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 1360#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 1375#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 1385#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 1282#L431-1 assume !(0 == ~e_f~0); 1283#L436-1 assume !(0 == ~e_g~0); 1327#L441-1 assume !(0 == ~e_e~0); 1361#L446-1 assume 0 == ~e_c~0;~e_c~0 := 1; 1378#L451-1 assume !(0 == ~e_wl~0); 1396#L456-1 assume !(1 == ~wl_pc~0); 1376#L468 assume !(2 == ~wl_pc~0); 1350#L469 assume !(1 == ~c1_pc~0); 1349#L479 assume !(1 == ~c2_pc~0); 1351#L488 assume !(1 == ~wb_pc~0); 1308#L497 assume 1 == ~e_c~0;~r_st~0 := 0; 1309#L506-1 assume !(1 == ~e_e~0); 1394#L511-1 assume !(1 == ~e_f~0); 1310#L516-1 assume !(1 == ~e_g~0); 1311#L521-1 assume 1 == ~e_c~0;~e_c~0 := 2; 1353#L526-1 assume !(1 == ~e_wl~0); 1280#L668-1 [2020-11-29 18:20:19,519 INFO L796 eck$LassoCheckResult]: Loop: 1280#L668-1 assume !false; 1336#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 1318#L373 assume !false; 1319#L291 assume !(0 == ~wl_st~0); 1362#L295 assume !(0 == ~c1_st~0); 1363#L298 assume !(0 == ~c2_st~0); 1358#L301 assume !(0 == ~wb_st~0); 1331#L304 assume !(0 == ~r_st~0); 1333#L389 start_simulation_~kernel_st~0 := 2; 1296#L544 assume !(1 == ~c_req_up~0); 1297#L544-2 start_simulation_~kernel_st~0 := 3; 1388#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 1389#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 1391#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 1301#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 1302#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 1337#L576-1 assume 1 == ~wl_pc~0; 1330#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 1294#L589 assume !(1 == ~c1_pc~0); 1287#L599 assume !(1 == ~c2_pc~0); 1289#L608 assume !(1 == ~wb_pc~0); 1322#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 1328#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 1329#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 1366#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 1384#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 1397#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 1323#L651-1 assume 0 == ~wl_st~0; 1280#L668-1 [2020-11-29 18:20:19,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:19,520 INFO L82 PathProgramCache]: Analyzing trace with hash 785152729, now seen corresponding path program 1 times [2020-11-29 18:20:19,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:19,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712596945] [2020-11-29 18:20:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:19,642 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 18:20:19,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712596945] [2020-11-29 18:20:19,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:19,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:19,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841114874] [2020-11-29 18:20:19,643 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:19,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:19,644 INFO L82 PathProgramCache]: Analyzing trace with hash 346514803, now seen corresponding path program 1 times [2020-11-29 18:20:19,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:19,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672501612] [2020-11-29 18:20:19,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:19,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:19,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:19,683 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:19,845 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-29 18:20:19,979 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:19,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:19,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:19,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:19,984 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:20:19,984 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:19,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:19,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:19,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration6_Loop [2020-11-29 18:20:19,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:19,985 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:20,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,026 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 18:20:20,029 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 18:20:20,044 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 18:20:20,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,053 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 18:20:20,058 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 18:20:20,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,071 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 18:20:20,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,078 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 18:20:20,081 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 18:20:20,090 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 18:20:20,094 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 18:20:20,097 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 18:20:20,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,111 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 18:20:20,118 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 18:20:20,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,171 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 18:20:20,577 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:20,579 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:20,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:20,591 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:20,604 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:20,604 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=7} Honda state: {~c2_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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 18:20:20,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:20,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:20,681 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:20,681 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:20,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:20,727 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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) [2020-11-29 18:20:20,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:20:20,814 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:20,837 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:20:20,894 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:20,895 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:20,895 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:20,895 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:20,895 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:20:20,895 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:20,895 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:20,896 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:20,896 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration6_Loop [2020-11-29 18:20:20,896 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:20,896 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:20,900 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 18:20:20,922 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 18:20:20,926 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 18:20:20,935 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 18:20:20,939 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 18:20:20,943 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 18:20:20,948 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 18:20:20,957 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 18:20:20,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:20,967 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 18:20:20,971 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 18:20:20,975 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 18:20:20,983 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 18:20:20,988 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 18:20:20,993 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 18:20:21,001 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 18:20:21,006 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 18:20:21,017 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 18:20:21,021 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 18:20:21,027 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 18:20:21,031 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 18:20:21,039 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 18:20:21,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:21,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:21,051 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 18:20:21,055 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 18:20:21,497 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:21,503 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:21,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:21,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:21,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:21,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:21,525 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:21,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:21,528 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:21,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:21,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:21,587 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:20:21,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:21,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:21,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:21,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:21,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:21,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:21,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:21,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:21,671 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 18:20:21,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:21,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:21,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:21,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:21,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:21,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:21,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:21,681 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:20:21,725 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:20:21,725 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_7e31ccdf-eaff-4e4b-a4c6-712934957460/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 18:20:21,730 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:20:21,730 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:20:21,731 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:20:21,731 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_c~0) = -1*~e_c~0 + 1 Supporting invariants [] [2020-11-29 18:20:21,759 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:20:21,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:21,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:20:21,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:21,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:20:21,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:22,003 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 18:20:22,009 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 18:20:22,009 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 152 states and 271 transitions. cyclomatic complexity: 120 Second operand 5 states. [2020-11-29 18:20:22,172 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 152 states and 271 transitions. cyclomatic complexity: 120. Second operand 5 states. Result 470 states and 831 transitions. Complement of second has 5 states. [2020-11-29 18:20:22,176 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 18:20:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 18:20:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2020-11-29 18:20:22,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 24 letters. Loop has 28 letters. [2020-11-29 18:20:22,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:22,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 52 letters. Loop has 28 letters. [2020-11-29 18:20:22,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:22,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 24 letters. Loop has 56 letters. [2020-11-29 18:20:22,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:22,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 470 states and 831 transitions. [2020-11-29 18:20:22,207 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2020-11-29 18:20:22,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 470 states to 455 states and 801 transitions. [2020-11-29 18:20:22,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2020-11-29 18:20:22,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 349 [2020-11-29 18:20:22,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 455 states and 801 transitions. [2020-11-29 18:20:22,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:22,215 INFO L691 BuchiCegarLoop]: Abstraction has 455 states and 801 transitions. [2020-11-29 18:20:22,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states and 801 transitions. [2020-11-29 18:20:22,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 348. [2020-11-29 18:20:22,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-11-29 18:20:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 613 transitions. [2020-11-29 18:20:22,244 INFO L714 BuchiCegarLoop]: Abstraction has 348 states and 613 transitions. [2020-11-29 18:20:22,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:22,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:22,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:22,254 INFO L87 Difference]: Start difference. First operand 348 states and 613 transitions. Second operand 4 states. [2020-11-29 18:20:22,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:22,449 INFO L93 Difference]: Finished difference Result 634 states and 1098 transitions. [2020-11-29 18:20:22,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:20:22,450 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 634 states and 1098 transitions. [2020-11-29 18:20:22,457 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 358 [2020-11-29 18:20:22,465 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 634 states to 634 states and 1098 transitions. [2020-11-29 18:20:22,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 452 [2020-11-29 18:20:22,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 452 [2020-11-29 18:20:22,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 634 states and 1098 transitions. [2020-11-29 18:20:22,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:22,467 INFO L691 BuchiCegarLoop]: Abstraction has 634 states and 1098 transitions. [2020-11-29 18:20:22,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states and 1098 transitions. [2020-11-29 18:20:22,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 607. [2020-11-29 18:20:22,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-11-29 18:20:22,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1059 transitions. [2020-11-29 18:20:22,487 INFO L714 BuchiCegarLoop]: Abstraction has 607 states and 1059 transitions. [2020-11-29 18:20:22,487 INFO L594 BuchiCegarLoop]: Abstraction has 607 states and 1059 transitions. [2020-11-29 18:20:22,487 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 18:20:22,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 607 states and 1059 transitions. [2020-11-29 18:20:22,493 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 358 [2020-11-29 18:20:22,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:22,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:22,494 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] [2020-11-29 18:20:22,494 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] [2020-11-29 18:20:22,495 INFO L794 eck$LassoCheckResult]: Stem: 3285#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 3109#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 3110#L400 assume !(1 == ~c_req_up~0); 3210#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 3390#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 3388#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 3386#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 3383#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 3381#L431-1 assume !(0 == ~e_f~0); 3379#L436-1 assume !(0 == ~e_g~0); 3378#L441-1 assume !(0 == ~e_e~0); 3377#L446-1 assume !(0 == ~e_c~0); 3376#L451-1 assume !(0 == ~e_wl~0); 3375#L456-1 assume !(1 == ~wl_pc~0); 3372#L468 assume !(2 == ~wl_pc~0); 3370#L469 assume !(1 == ~c1_pc~0); 3367#L479 assume !(1 == ~c2_pc~0); 3349#L488 assume !(1 == ~wb_pc~0); 3340#L497 assume 1 == ~e_c~0;~r_st~0 := 0; 3116#L506-1 assume !(1 == ~e_e~0); 3286#L511-1 assume !(1 == ~e_f~0); 3117#L516-1 assume !(1 == ~e_g~0); 3118#L521-1 assume 1 == ~e_c~0;~e_c~0 := 2; 3198#L526-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 3246#L668-1 [2020-11-29 18:20:22,495 INFO L796 eck$LassoCheckResult]: Loop: 3246#L668-1 assume !false; 3500#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 3498#L373 assume !false; 3496#L291 assume !(0 == ~wl_st~0); 3494#L295 assume !(0 == ~c1_st~0); 3492#L298 assume !(0 == ~c2_st~0); 3490#L301 assume !(0 == ~wb_st~0); 3486#L304 assume !(0 == ~r_st~0); 3484#L389 start_simulation_~kernel_st~0 := 2; 3478#L544 assume !(1 == ~c_req_up~0); 3476#L544-2 start_simulation_~kernel_st~0 := 3; 3473#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 3474#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 3469#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 3470#L566-1 assume !(0 == ~e_c~0); 3448#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 3466#L576-1 assume 1 == ~wl_pc~0; 3461#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 3460#L589 assume !(1 == ~c1_pc~0); 3455#L599 assume !(1 == ~c2_pc~0); 3454#L608 assume !(1 == ~wb_pc~0); 3430#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 3429#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 3426#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 3423#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 3418#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 3419#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 3526#L651-1 assume 0 == ~wl_st~0; 3246#L668-1 [2020-11-29 18:20:22,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:22,496 INFO L82 PathProgramCache]: Analyzing trace with hash 198346713, now seen corresponding path program 1 times [2020-11-29 18:20:22,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:22,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264457284] [2020-11-29 18:20:22,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:22,571 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 18:20:22,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264457284] [2020-11-29 18:20:22,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:22,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:22,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544146956] [2020-11-29 18:20:22,572 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:22,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:22,573 INFO L82 PathProgramCache]: Analyzing trace with hash -664602447, now seen corresponding path program 1 times [2020-11-29 18:20:22,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:22,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357432223] [2020-11-29 18:20:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:22,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:22,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:22,601 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:22,908 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-29 18:20:23,008 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:23,008 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:23,008 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:23,008 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:23,008 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:20:23,008 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:23,009 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:23,009 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:23,009 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration7_Loop [2020-11-29 18:20:23,009 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:23,009 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:23,012 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 18:20:23,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,041 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 18:20:23,045 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 18:20:23,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,054 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 18:20:23,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,079 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 18:20:23,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,099 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 18:20:23,103 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 18:20:23,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,112 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 18:20:23,119 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 18:20:23,123 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 18:20:23,129 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 18:20:23,138 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 18:20:23,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,147 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 18:20:23,152 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 18:20:23,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:23,165 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 18:20:23,168 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 18:20:23,565 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:23,565 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:23,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:23,579 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:23,586 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:23,587 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet10=0} Honda state: {ULTIMATE.start_eval_#t~nondet10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:23,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:23,643 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:23,650 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:23,650 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=7} Honda state: {~c2_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:23,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:23,707 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:23,711 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:23,711 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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 18:20:23,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:23,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:23,755 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:23,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp___3~0=0} Honda state: {ULTIMATE.start_eval_~tmp___3~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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 18:20:23,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:23,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:23,786 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:23,786 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet9=0} Honda state: {ULTIMATE.start_eval_#t~nondet9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:23,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:23,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:23,818 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:23,818 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet7=0} Honda state: {ULTIMATE.start_eval_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:23,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:23,892 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:23,902 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:23,902 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Honda state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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 18:20:23,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:23,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:23,947 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:23,947 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c1_st~0=-5} Honda state: {~c1_st~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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 18:20:23,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:23,977 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/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 18:20:24,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:20:24,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:24,019 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:20:24,059 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:24,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:24,060 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:24,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:24,060 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:20:24,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:24,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:24,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:24,060 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration7_Loop [2020-11-29 18:20:24,060 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:24,060 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:24,063 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 18:20:24,073 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 18:20:24,077 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 18:20:24,081 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 18:20:24,085 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 18:20:24,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:24,094 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 18:20:24,099 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 18:20:24,111 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 18:20:24,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:24,119 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 18:20:24,128 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 18:20:24,132 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 18:20:24,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:24,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:24,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:24,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:24,171 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 18:20:24,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:24,187 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 18:20:24,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:24,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:24,200 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 18:20:24,204 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 18:20:24,209 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 18:20:24,217 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 18:20:24,628 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:24,629 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:24,650 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 18:20:24,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:24,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:24,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:24,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:24,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:24,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:24,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:24,657 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:24,714 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 18:20:24,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:24,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:24,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:24,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:24,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:24,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:24,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:24,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:24,771 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 18:20:24,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:24,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:24,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:24,774 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:24,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:24,775 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:24,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:24,778 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:24,825 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 18:20:24,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:24,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:24,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:24,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:24,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:24,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:24,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:24,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:24,883 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 18:20:24,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:24,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:24,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:24,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:24,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:24,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:24,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:24,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:24,930 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 18:20:24,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:24,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:24,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:24,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:24,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:24,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:24,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:24,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:24,963 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 18:20:24,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:24,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:24,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:24,965 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:24,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:24,966 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:24,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:24,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:24,997 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 18:20:24,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:24,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:24,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:24,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:24,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:25,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:25,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:25,003 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:20:25,006 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:20:25,006 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_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:25,009 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:20:25,009 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:20:25,010 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:20:25,010 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_c~0) = -2*~e_c~0 + 3 Supporting invariants [] [2020-11-29 18:20:25,035 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:20:25,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:25,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:20:25,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:25,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:20:25,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:25,213 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 18:20:25,214 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 18:20:25,214 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 607 states and 1059 transitions. cyclomatic complexity: 458 Second operand 5 states. [2020-11-29 18:20:25,317 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 607 states and 1059 transitions. cyclomatic complexity: 458. Second operand 5 states. Result 989 states and 1720 transitions. Complement of second has 7 states. [2020-11-29 18:20:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:20:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 18:20:25,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2020-11-29 18:20:25,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 374 transitions. Stem has 24 letters. Loop has 28 letters. [2020-11-29 18:20:25,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:25,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 374 transitions. Stem has 52 letters. Loop has 28 letters. [2020-11-29 18:20:25,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:25,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 374 transitions. Stem has 24 letters. Loop has 56 letters. [2020-11-29 18:20:25,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:25,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 989 states and 1720 transitions. [2020-11-29 18:20:25,338 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 558 [2020-11-29 18:20:25,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 989 states to 985 states and 1712 transitions. [2020-11-29 18:20:25,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 636 [2020-11-29 18:20:25,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 639 [2020-11-29 18:20:25,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 985 states and 1712 transitions. [2020-11-29 18:20:25,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:25,355 INFO L691 BuchiCegarLoop]: Abstraction has 985 states and 1712 transitions. [2020-11-29 18:20:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states and 1712 transitions. [2020-11-29 18:20:25,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 528. [2020-11-29 18:20:25,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-29 18:20:25,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 921 transitions. [2020-11-29 18:20:25,376 INFO L714 BuchiCegarLoop]: Abstraction has 528 states and 921 transitions. [2020-11-29 18:20:25,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:25,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:25,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:25,377 INFO L87 Difference]: Start difference. First operand 528 states and 921 transitions. Second operand 3 states. [2020-11-29 18:20:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:25,486 INFO L93 Difference]: Finished difference Result 799 states and 1379 transitions. [2020-11-29 18:20:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:25,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 799 states and 1379 transitions. [2020-11-29 18:20:25,497 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 457 [2020-11-29 18:20:25,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 799 states to 631 states and 1089 transitions. [2020-11-29 18:20:25,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 537 [2020-11-29 18:20:25,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 542 [2020-11-29 18:20:25,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 631 states and 1089 transitions. [2020-11-29 18:20:25,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:25,506 INFO L691 BuchiCegarLoop]: Abstraction has 631 states and 1089 transitions. [2020-11-29 18:20:25,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states and 1089 transitions. [2020-11-29 18:20:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 446. [2020-11-29 18:20:25,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-11-29 18:20:25,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 774 transitions. [2020-11-29 18:20:25,523 INFO L714 BuchiCegarLoop]: Abstraction has 446 states and 774 transitions. [2020-11-29 18:20:25,523 INFO L594 BuchiCegarLoop]: Abstraction has 446 states and 774 transitions. [2020-11-29 18:20:25,523 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 18:20:25,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 774 transitions. [2020-11-29 18:20:25,527 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 279 [2020-11-29 18:20:25,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:25,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:25,528 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] [2020-11-29 18:20:25,528 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] [2020-11-29 18:20:25,529 INFO L794 eck$LassoCheckResult]: Stem: 6379#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 6213#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 6214#L400 assume !(1 == ~c_req_up~0); 6278#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 6279#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 6424#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 6423#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 6422#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 6173#L431-1 assume !(0 == ~e_f~0); 6174#L436-1 assume !(0 == ~e_g~0); 6253#L441-1 assume !(0 == ~e_e~0); 6315#L446-1 assume !(0 == ~e_c~0); 6348#L451-1 assume !(0 == ~e_wl~0); 6395#L456-1 assume !(1 == ~wl_pc~0); 6396#L468 assume !(2 == ~wl_pc~0); 6294#L469 assume !(1 == ~c1_pc~0); 6293#L479 assume !(1 == ~c2_pc~0); 6296#L488 assume !(1 == ~wb_pc~0); 6219#L497 assume !(1 == ~e_c~0); 6220#L506-1 assume !(1 == ~e_e~0); 6392#L511-1 assume 1 == ~e_f~0;~e_f~0 := 2; 6221#L516-1 assume !(1 == ~e_g~0); 6222#L521-1 assume !(1 == ~e_c~0); 6343#L526-1 assume !(1 == ~e_wl~0); 6168#L668-1 [2020-11-29 18:20:25,529 INFO L796 eck$LassoCheckResult]: Loop: 6168#L668-1 assume !false; 6400#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 6449#L373 assume !false; 6448#L291 assume !(0 == ~wl_st~0); 6447#L295 assume !(0 == ~c1_st~0); 6446#L298 assume !(0 == ~c2_st~0); 6445#L301 assume !(0 == ~wb_st~0); 6260#L304 assume !(0 == ~r_st~0); 6262#L389 start_simulation_~kernel_st~0 := 2; 6199#L544 assume !(1 == ~c_req_up~0); 6200#L544-2 start_simulation_~kernel_st~0 := 3; 6440#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 6373#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 6374#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 6205#L566-1 assume !(0 == ~e_c~0); 6206#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 6270#L576-1 assume 1 == ~wl_pc~0; 6258#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 6188#L589 assume !(1 == ~c1_pc~0); 6175#L599 assume !(1 == ~c2_pc~0); 6177#L608 assume !(1 == ~wb_pc~0); 6240#L617 assume !(1 == ~e_c~0); 6254#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 6255#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 6320#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 6356#L641-1 assume !(1 == ~e_c~0); 6385#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 6245#L651-1 assume 0 == ~wl_st~0; 6168#L668-1 [2020-11-29 18:20:25,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:25,530 INFO L82 PathProgramCache]: Analyzing trace with hash 255545497, now seen corresponding path program 1 times [2020-11-29 18:20:25,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:25,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811269364] [2020-11-29 18:20:25,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:25,571 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 18:20:25,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811269364] [2020-11-29 18:20:25,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:25,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:25,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280741273] [2020-11-29 18:20:25,572 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:25,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:25,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1110406837, now seen corresponding path program 1 times [2020-11-29 18:20:25,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:25,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087792024] [2020-11-29 18:20:25,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:25,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:25,582 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:25,588 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:25,777 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:25,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:25,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:25,778 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:25,778 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:20:25,778 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:25,778 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:25,778 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:25,778 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration8_Loop [2020-11-29 18:20:25,778 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:25,778 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:25,781 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 18:20:25,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:25,810 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 18:20:25,819 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 18:20:25,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:25,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:25,829 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 18:20:25,849 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 18:20:25,852 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 18:20:25,857 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 18:20:25,862 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 18:20:25,866 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 18:20:25,876 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 18:20:25,879 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 18:20:25,894 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 18:20:25,903 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 18:20:25,908 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 18:20:25,912 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 18:20:25,917 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 18:20:25,922 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 18:20:25,926 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 18:20:25,930 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 18:20:25,934 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 18:20:25,938 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 18:20:25,954 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 18:20:25,974 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 18:20:26,333 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:26,334 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:26,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:26,351 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:26,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:20:26,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:26,386 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:20:26,410 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:26,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:26,411 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:26,411 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:26,411 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:20:26,411 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:26,411 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:26,411 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:26,411 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration8_Loop [2020-11-29 18:20:26,411 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:26,412 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:26,414 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 18:20:26,429 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 18:20:26,436 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 18:20:26,442 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 18:20:26,445 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 18:20:26,451 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 18:20:26,454 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 18:20:26,456 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 18:20:26,460 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 18:20:26,463 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 18:20:26,467 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 18:20:26,474 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 18:20:26,477 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 18:20:26,480 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 18:20:26,487 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 18:20:26,490 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 18:20:26,493 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 18:20:26,496 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 18:20:26,499 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 18:20:26,503 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 18:20:26,507 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 18:20:26,509 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 18:20:26,512 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 18:20:26,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:26,517 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 18:20:26,528 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 18:20:26,881 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:26,881 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:26,890 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 18:20:26,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:26,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:26,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:26,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:26,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:26,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:26,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:26,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:26,929 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 18:20:26,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:26,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:26,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:26,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:26,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:26,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:26,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:26,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:20:26,937 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:20:26,937 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_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:26,944 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:20:26,944 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:20:26,944 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:20:26,944 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_f~0) = -1*~e_f~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:26,987 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:20:27,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:27,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:20:27,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:27,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:20:27,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:27,184 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 18:20:27,184 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 18:20:27,185 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 446 states and 774 transitions. cyclomatic complexity: 331 Second operand 5 states. [2020-11-29 18:20:27,285 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 446 states and 774 transitions. cyclomatic complexity: 331. Second operand 5 states. Result 1463 states and 2534 transitions. Complement of second has 5 states. [2020-11-29 18:20:27,286 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 18:20:27,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 18:20:27,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2020-11-29 18:20:27,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 361 transitions. Stem has 24 letters. Loop has 28 letters. [2020-11-29 18:20:27,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:27,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 361 transitions. Stem has 52 letters. Loop has 28 letters. [2020-11-29 18:20:27,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:27,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 361 transitions. Stem has 24 letters. Loop has 56 letters. [2020-11-29 18:20:27,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:27,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1463 states and 2534 transitions. [2020-11-29 18:20:27,307 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 738 [2020-11-29 18:20:27,323 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1463 states to 1448 states and 2511 transitions. [2020-11-29 18:20:27,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 829 [2020-11-29 18:20:27,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 837 [2020-11-29 18:20:27,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1448 states and 2511 transitions. [2020-11-29 18:20:27,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:27,326 INFO L691 BuchiCegarLoop]: Abstraction has 1448 states and 2511 transitions. [2020-11-29 18:20:27,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states and 2511 transitions. [2020-11-29 18:20:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1054. [2020-11-29 18:20:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2020-11-29 18:20:27,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1842 transitions. [2020-11-29 18:20:27,362 INFO L714 BuchiCegarLoop]: Abstraction has 1054 states and 1842 transitions. [2020-11-29 18:20:27,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:27,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:27,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:27,365 INFO L87 Difference]: Start difference. First operand 1054 states and 1842 transitions. Second operand 4 states. [2020-11-29 18:20:27,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:27,594 INFO L93 Difference]: Finished difference Result 1372 states and 2377 transitions. [2020-11-29 18:20:27,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:20:27,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1372 states and 2377 transitions. [2020-11-29 18:20:27,606 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 595 [2020-11-29 18:20:27,622 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1372 states to 1372 states and 2377 transitions. [2020-11-29 18:20:27,622 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 758 [2020-11-29 18:20:27,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 758 [2020-11-29 18:20:27,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1372 states and 2377 transitions. [2020-11-29 18:20:27,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:27,625 INFO L691 BuchiCegarLoop]: Abstraction has 1372 states and 2377 transitions. [2020-11-29 18:20:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states and 2377 transitions. [2020-11-29 18:20:27,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1265. [2020-11-29 18:20:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-11-29 18:20:27,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2201 transitions. [2020-11-29 18:20:27,661 INFO L714 BuchiCegarLoop]: Abstraction has 1265 states and 2201 transitions. [2020-11-29 18:20:27,661 INFO L594 BuchiCegarLoop]: Abstraction has 1265 states and 2201 transitions. [2020-11-29 18:20:27,662 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-29 18:20:27,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1265 states and 2201 transitions. [2020-11-29 18:20:27,670 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 514 [2020-11-29 18:20:27,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:27,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:27,672 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] [2020-11-29 18:20:27,672 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] [2020-11-29 18:20:27,672 INFO L794 eck$LassoCheckResult]: Stem: 10916#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 10729#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 10730#L400 assume !(1 == ~c_req_up~0); 10831#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 10833#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 10834#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 10896#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 10897#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 10689#L431-1 assume !(0 == ~e_f~0); 10690#L436-1 assume !(0 == ~e_g~0); 10769#L441-1 assume !(0 == ~e_e~0); 10835#L446-1 assume !(0 == ~e_c~0); 10886#L451-1 assume !(0 == ~e_wl~0); 11081#L456-1 assume !(1 == ~wl_pc~0); 10881#L468 assume !(2 == ~wl_pc~0); 10882#L469 assume !(1 == ~c1_pc~0); 11078#L479 assume !(1 == ~c2_pc~0); 11076#L488 assume !(1 == ~wb_pc~0); 10735#L497 assume !(1 == ~e_c~0); 10736#L506-1 assume !(1 == ~e_e~0); 10936#L511-1 assume !(1 == ~e_f~0); 10937#L516-1 assume !(1 == ~e_g~0); 10819#L521-1 assume !(1 == ~e_c~0); 10820#L526-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 10877#L668-1 [2020-11-29 18:20:27,673 INFO L796 eck$LassoCheckResult]: Loop: 10877#L668-1 assume !false; 11740#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 11741#L373 assume !false; 11735#L291 assume !(0 == ~wl_st~0); 11736#L295 assume !(0 == ~c1_st~0); 11729#L298 assume !(0 == ~c2_st~0); 11730#L301 assume !(0 == ~wb_st~0); 11708#L304 assume !(0 == ~r_st~0); 11710#L389 start_simulation_~kernel_st~0 := 2; 11638#L544 assume !(1 == ~c_req_up~0); 11639#L544-2 start_simulation_~kernel_st~0 := 3; 11880#L556 assume !(0 == ~e_f~0); 11878#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 11873#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 11871#L566-1 assume !(0 == ~e_c~0); 11870#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 11869#L576-1 assume 1 == ~wl_pc~0; 11867#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 11864#L589 assume !(1 == ~c1_pc~0); 11861#L599 assume !(1 == ~c2_pc~0); 11858#L608 assume !(1 == ~wb_pc~0); 11855#L617 assume !(1 == ~e_c~0); 11851#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 11782#L631-1 assume !(1 == ~e_f~0); 11775#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 11761#L641-1 assume !(1 == ~e_c~0); 11758#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 11753#L651-1 assume 0 == ~wl_st~0; 10877#L668-1 [2020-11-29 18:20:27,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:27,673 INFO L82 PathProgramCache]: Analyzing trace with hash 255605077, now seen corresponding path program 1 times [2020-11-29 18:20:27,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:27,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933594510] [2020-11-29 18:20:27,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:27,710 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 18:20:27,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933594510] [2020-11-29 18:20:27,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:27,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:27,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053620210] [2020-11-29 18:20:27,711 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:27,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:27,711 INFO L82 PathProgramCache]: Analyzing trace with hash -476094023, now seen corresponding path program 1 times [2020-11-29 18:20:27,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:27,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964020778] [2020-11-29 18:20:27,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:27,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:27,721 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:27,726 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:27,829 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-29 18:20:27,909 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:27,909 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:27,909 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:27,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:27,910 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:20:27,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:27,910 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:27,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:27,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration9_Loop [2020-11-29 18:20:27,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:27,910 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:27,911 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 18:20:27,926 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 18:20:27,928 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 18:20:27,932 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 18:20:27,937 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 18:20:27,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:27,943 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 18:20:27,946 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 18:20:27,950 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 18:20:27,956 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 18:20:27,968 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 18:20:27,976 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 18:20:27,985 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 18:20:27,991 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 18:20:28,027 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 18:20:28,031 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 18:20:28,034 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 18:20:28,037 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 18:20:28,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:28,044 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 18:20:28,052 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 18:20:28,057 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 18:20:28,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:28,064 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 18:20:28,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:28,071 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 18:20:28,494 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:28,494 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:28,500 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:28,501 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c1_st~0=-5} Honda state: {~c1_st~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:28,531 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:28,532 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp___2~0=0} Honda state: {ULTIMATE.start_eval_~tmp___2~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:28,565 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:28,565 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~r_st~0=7} Honda state: {~r_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:28,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:28,596 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Honda state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:28,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,626 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,631 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:28,631 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=7} Honda state: {~c2_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:28,670 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:28,670 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:28,700 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:28,700 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet10=0} Honda state: {ULTIMATE.start_eval_#t~nondet10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:28,730 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:28,730 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp~0=0} Honda state: {ULTIMATE.start_eval_~tmp~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:28,761 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:28,761 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~wb_st~0=7} Honda state: {~wb_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:28,789 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:20:28,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:28,863 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:20:28,865 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:28,865 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:28,865 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:28,865 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:28,865 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:20:28,865 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:28,865 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:28,865 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:28,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration9_Loop [2020-11-29 18:20:28,866 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:28,866 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:28,867 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 18:20:28,886 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 18:20:28,889 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 18:20:28,892 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 18:20:28,895 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 18:20:28,899 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 18:20:28,901 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 18:20:28,904 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 18:20:28,907 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 18:20:28,910 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 18:20:28,944 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 18:20:28,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:28,956 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 18:20:28,960 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 18:20:28,965 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 18:20:28,968 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 18:20:28,971 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 18:20:28,976 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 18:20:28,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:28,988 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 18:20:28,996 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 18:20:29,001 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 18:20:29,005 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 18:20:29,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:29,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:29,013 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 18:20:29,411 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:29,411 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:29,426 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 18:20:29,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,429 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:29,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,438 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:29,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,472 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 18:20:29,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:29,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:29,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:29,476 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,503 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 18:20:29,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,505 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:29,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,506 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:29,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:29,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:29,537 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 18:20:29,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:29,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:29,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,544 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,572 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 18:20:29,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,573 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:29,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,574 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:29,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:29,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,604 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 18:20:29,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:29,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:29,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:29,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,635 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 18:20:29,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:29,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:29,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:29,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,668 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 18:20:29,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:29,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:29,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:29,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,706 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 18:20:29,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,709 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:29,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,711 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:29,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:29,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,742 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 18:20:29,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,743 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:29,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,745 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:29,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:29,752 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,780 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 18:20:29,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:29,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:29,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:29,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:29,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:29,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:29,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:29,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:20:29,795 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:20:29,795 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_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:29,798 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:20:29,799 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:20:29,799 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:20:29,799 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_wl~0) = -1*~e_wl~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:29,842 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:20:29,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:29,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:20:29,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:29,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:20:29,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:29,967 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 18:20:29,968 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 18:20:29,968 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1265 states and 2201 transitions. cyclomatic complexity: 944 Second operand 5 states. [2020-11-29 18:20:30,043 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1265 states and 2201 transitions. cyclomatic complexity: 944. Second operand 5 states. Result 2556 states and 4440 transitions. Complement of second has 5 states. [2020-11-29 18:20:30,044 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 18:20:30,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 18:20:30,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2020-11-29 18:20:30,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 24 letters. Loop has 28 letters. [2020-11-29 18:20:30,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:30,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 52 letters. Loop has 28 letters. [2020-11-29 18:20:30,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:30,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 24 letters. Loop has 56 letters. [2020-11-29 18:20:30,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:30,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2556 states and 4440 transitions. [2020-11-29 18:20:30,074 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1097 [2020-11-29 18:20:30,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2556 states to 2552 states and 4432 transitions. [2020-11-29 18:20:30,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1248 [2020-11-29 18:20:30,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1270 [2020-11-29 18:20:30,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2552 states and 4432 transitions. [2020-11-29 18:20:30,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:30,107 INFO L691 BuchiCegarLoop]: Abstraction has 2552 states and 4432 transitions. [2020-11-29 18:20:30,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states and 4432 transitions. [2020-11-29 18:20:30,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2153. [2020-11-29 18:20:30,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2153 states. [2020-11-29 18:20:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 3746 transitions. [2020-11-29 18:20:30,209 INFO L714 BuchiCegarLoop]: Abstraction has 2153 states and 3746 transitions. [2020-11-29 18:20:30,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:30,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:30,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:30,210 INFO L87 Difference]: Start difference. First operand 2153 states and 3746 transitions. Second operand 4 states. [2020-11-29 18:20:30,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:30,450 INFO L93 Difference]: Finished difference Result 3113 states and 5362 transitions. [2020-11-29 18:20:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:20:30,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3113 states and 5362 transitions. [2020-11-29 18:20:30,482 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1173 [2020-11-29 18:20:30,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3113 states to 3113 states and 5362 transitions. [2020-11-29 18:20:30,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1534 [2020-11-29 18:20:30,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1534 [2020-11-29 18:20:30,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3113 states and 5362 transitions. [2020-11-29 18:20:30,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:30,519 INFO L691 BuchiCegarLoop]: Abstraction has 3113 states and 5362 transitions. [2020-11-29 18:20:30,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states and 5362 transitions. [2020-11-29 18:20:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 2719. [2020-11-29 18:20:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2719 states. [2020-11-29 18:20:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 4701 transitions. [2020-11-29 18:20:30,600 INFO L714 BuchiCegarLoop]: Abstraction has 2719 states and 4701 transitions. [2020-11-29 18:20:30,600 INFO L594 BuchiCegarLoop]: Abstraction has 2719 states and 4701 transitions. [2020-11-29 18:20:30,600 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-29 18:20:30,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2719 states and 4701 transitions. [2020-11-29 18:20:30,621 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 991 [2020-11-29 18:20:30,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:30,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:30,625 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] [2020-11-29 18:20:30,625 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] [2020-11-29 18:20:30,625 INFO L794 eck$LassoCheckResult]: Stem: 20198#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 19997#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 19998#L400 assume !(1 == ~c_req_up~0); 20101#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 20105#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 20106#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 20169#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 20170#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 19957#L431-1 assume !(0 == ~e_f~0); 19958#L436-1 assume !(0 == ~e_g~0); 20241#L441-1 assume !(0 == ~e_e~0); 20156#L446-1 assume !(0 == ~e_c~0); 20157#L451-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 20204#L456-1 assume !(1 == ~wl_pc~0); 20640#L468 assume !(2 == ~wl_pc~0); 20637#L469 assume !(1 == ~c1_pc~0); 20628#L479 assume !(1 == ~c2_pc~0); 20621#L488 assume !(1 == ~wb_pc~0); 20616#L497 assume !(1 == ~e_c~0); 20614#L506-1 assume !(1 == ~e_e~0); 20613#L511-1 assume !(1 == ~e_f~0); 20611#L516-1 assume !(1 == ~e_g~0); 20609#L521-1 assume !(1 == ~e_c~0); 20607#L526-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 20605#L668-1 assume !false; 20056#L538 [2020-11-29 18:20:30,626 INFO L796 eck$LassoCheckResult]: Loop: 20056#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 20019#L373 assume !false; 20020#L291 assume !(0 == ~wl_st~0); 22531#L295 assume !(0 == ~c1_st~0); 22533#L298 assume !(0 == ~c2_st~0); 22529#L301 assume !(0 == ~wb_st~0); 22530#L304 assume !(0 == ~r_st~0); 22532#L389 start_simulation_~kernel_st~0 := 2; 19983#L544 assume !(1 == ~c_req_up~0); 19984#L544-2 start_simulation_~kernel_st~0 := 3; 20181#L556 assume !(0 == ~e_f~0); 20182#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 20191#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 20219#L566-1 assume !(0 == ~e_c~0); 22664#L571-1 assume !(0 == ~e_wl~0); 22663#L576-1 assume !(1 == ~wl_pc~0); 21753#L588 assume !(2 == ~wl_pc~0); 22660#L589 assume !(1 == ~c1_pc~0); 19965#L599 assume !(1 == ~c2_pc~0); 19967#L608 assume !(1 == ~wb_pc~0); 20026#L617 assume !(1 == ~e_c~0); 20039#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 20040#L631-1 assume !(1 == ~e_f~0); 20116#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 20166#L641-1 assume !(1 == ~e_c~0); 20232#L646-1 assume !(1 == ~e_wl~0); 20233#L651-1 assume 0 == ~wl_st~0; 21769#L668-1 assume !false; 20056#L538 [2020-11-29 18:20:30,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:30,626 INFO L82 PathProgramCache]: Analyzing trace with hash -79371012, now seen corresponding path program 1 times [2020-11-29 18:20:30,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:30,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306922221] [2020-11-29 18:20:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:30,696 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 18:20:30,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306922221] [2020-11-29 18:20:30,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:30,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:20:30,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779248585] [2020-11-29 18:20:30,697 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:30,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:30,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1867312416, now seen corresponding path program 1 times [2020-11-29 18:20:30,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:30,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122797826] [2020-11-29 18:20:30,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:30,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122797826] [2020-11-29 18:20:30,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:30,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:30,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755471489] [2020-11-29 18:20:30,728 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:20:30,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:30,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:20:30,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:20:30,728 INFO L87 Difference]: Start difference. First operand 2719 states and 4701 transitions. cyclomatic complexity: 1996 Second operand 4 states. [2020-11-29 18:20:30,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:30,901 INFO L93 Difference]: Finished difference Result 2772 states and 4664 transitions. [2020-11-29 18:20:30,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:20:30,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2772 states and 4664 transitions. [2020-11-29 18:20:30,925 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1014 [2020-11-29 18:20:30,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2772 states to 2772 states and 4664 transitions. [2020-11-29 18:20:30,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1176 [2020-11-29 18:20:30,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1176 [2020-11-29 18:20:30,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2772 states and 4664 transitions. [2020-11-29 18:20:30,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:30,954 INFO L691 BuchiCegarLoop]: Abstraction has 2772 states and 4664 transitions. [2020-11-29 18:20:30,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states and 4664 transitions. [2020-11-29 18:20:31,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 2460. [2020-11-29 18:20:31,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2020-11-29 18:20:31,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 4176 transitions. [2020-11-29 18:20:31,052 INFO L714 BuchiCegarLoop]: Abstraction has 2460 states and 4176 transitions. [2020-11-29 18:20:31,052 INFO L594 BuchiCegarLoop]: Abstraction has 2460 states and 4176 transitions. [2020-11-29 18:20:31,052 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-29 18:20:31,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2460 states and 4176 transitions. [2020-11-29 18:20:31,064 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 838 [2020-11-29 18:20:31,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:31,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:31,066 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] [2020-11-29 18:20:31,066 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] [2020-11-29 18:20:31,066 INFO L794 eck$LassoCheckResult]: Stem: 25700#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 25498#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 25499#L400 assume !(1 == ~c_req_up~0); 25603#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 25604#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 25605#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 25672#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 25673#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 25458#L431-1 assume !(0 == ~e_f~0); 25459#L436-1 assume !(0 == ~e_g~0); 25606#L441-1 assume !(0 == ~e_e~0); 25607#L446-1 assume !(0 == ~e_c~0); 25754#L451-1 assume !(0 == ~e_wl~0); 25751#L456-1 assume !(1 == ~wl_pc~0); 25746#L468 assume !(2 == ~wl_pc~0); 25744#L469 assume !(1 == ~c1_pc~0); 25741#L479 assume !(1 == ~c2_pc~0); 25738#L488 assume !(1 == ~wb_pc~0); 25504#L497 assume !(1 == ~e_c~0); 25505#L506-1 assume !(1 == ~e_e~0); 25759#L511-1 assume !(1 == ~e_f~0); 25758#L516-1 assume !(1 == ~e_g~0); 25590#L521-1 assume !(1 == ~e_c~0); 25591#L526-1 assume !(1 == ~e_wl~0); 27369#L668-1 assume !false; 25780#L538 [2020-11-29 18:20:31,066 INFO L796 eck$LassoCheckResult]: Loop: 25780#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 27286#L373 assume !false; 27282#L291 assume !(0 == ~wl_st~0); 27283#L295 assume !(0 == ~c1_st~0); 27285#L298 assume !(0 == ~c2_st~0); 27280#L301 assume !(0 == ~wb_st~0); 27281#L304 assume !(0 == ~r_st~0); 27284#L389 start_simulation_~kernel_st~0 := 2; 27909#L544 assume !(1 == ~c_req_up~0); 27908#L544-2 start_simulation_~kernel_st~0 := 3; 27907#L556 assume !(0 == ~e_f~0); 27906#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 25715#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 25490#L566-1 assume !(0 == ~e_c~0); 25491#L571-1 assume !(0 == ~e_wl~0); 25559#L576-1 assume !(1 == ~wl_pc~0); 25472#L588 assume !(2 == ~wl_pc~0); 25473#L589 assume !(1 == ~c1_pc~0); 25460#L599 assume !(1 == ~c2_pc~0); 25462#L608 assume !(1 == ~wb_pc~0); 25531#L617 assume !(1 == ~e_c~0); 25540#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 25541#L631-1 assume !(1 == ~e_f~0); 27855#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 25708#L641-1 assume !(1 == ~e_c~0); 25709#L646-1 assume !(1 == ~e_wl~0); 25729#L651-1 assume 0 == ~wl_st~0; 27296#L668-1 assume !false; 25780#L538 [2020-11-29 18:20:31,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:31,067 INFO L82 PathProgramCache]: Analyzing trace with hash -666176964, now seen corresponding path program 1 times [2020-11-29 18:20:31,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:31,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891343287] [2020-11-29 18:20:31,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:31,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:31,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:31,118 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:31,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:31,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1867312416, now seen corresponding path program 2 times [2020-11-29 18:20:31,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:31,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432619626] [2020-11-29 18:20:31,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:31,155 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 18:20:31,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432619626] [2020-11-29 18:20:31,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:31,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:31,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807942633] [2020-11-29 18:20:31,156 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:20:31,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:31,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:31,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:31,157 INFO L87 Difference]: Start difference. First operand 2460 states and 4176 transitions. cyclomatic complexity: 1726 Second operand 3 states. [2020-11-29 18:20:31,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:31,240 INFO L93 Difference]: Finished difference Result 3939 states and 6623 transitions. [2020-11-29 18:20:31,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:31,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3939 states and 6623 transitions. [2020-11-29 18:20:31,269 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1340 [2020-11-29 18:20:31,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3939 states to 3939 states and 6623 transitions. [2020-11-29 18:20:31,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1508 [2020-11-29 18:20:31,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1508 [2020-11-29 18:20:31,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3939 states and 6623 transitions. [2020-11-29 18:20:31,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:31,310 INFO L691 BuchiCegarLoop]: Abstraction has 3939 states and 6623 transitions. [2020-11-29 18:20:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states and 6623 transitions. [2020-11-29 18:20:31,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3939. [2020-11-29 18:20:31,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3939 states. [2020-11-29 18:20:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3939 states to 3939 states and 6623 transitions. [2020-11-29 18:20:31,407 INFO L714 BuchiCegarLoop]: Abstraction has 3939 states and 6623 transitions. [2020-11-29 18:20:31,407 INFO L594 BuchiCegarLoop]: Abstraction has 3939 states and 6623 transitions. [2020-11-29 18:20:31,407 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-29 18:20:31,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3939 states and 6623 transitions. [2020-11-29 18:20:31,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1340 [2020-11-29 18:20:31,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:31,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:31,425 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] [2020-11-29 18:20:31,425 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] [2020-11-29 18:20:31,426 INFO L794 eck$LassoCheckResult]: Stem: 32092#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 31903#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 31904#L400 assume !(1 == ~c_req_up~0); 32007#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 32145#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 32143#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 32142#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 32139#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 32138#L431-1 assume !(0 == ~e_f~0); 32137#L436-1 assume !(0 == ~e_g~0); 32136#L441-1 assume !(0 == ~e_e~0); 32058#L446-1 assume !(0 == ~e_c~0); 32059#L451-1 assume !(0 == ~e_wl~0); 32119#L456-1 assume !(1 == ~wl_pc~0); 32055#L468 assume !(2 == ~wl_pc~0); 32056#L469 assume !(1 == ~c1_pc~0); 32141#L479 assume !(1 == ~c2_pc~0); 32134#L488 assume !(1 == ~wb_pc~0); 31910#L497 assume !(1 == ~e_c~0); 31911#L506-1 assume !(1 == ~e_e~0); 32159#L511-1 assume !(1 == ~e_f~0); 32158#L516-1 assume !(1 == ~e_g~0); 31994#L521-1 assume !(1 == ~e_c~0); 31995#L526-1 assume !(1 == ~e_wl~0); 35367#L668-1 assume !false; 33356#L538 [2020-11-29 18:20:31,426 INFO L796 eck$LassoCheckResult]: Loop: 33356#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 33353#L373 assume !false; 33319#L291 assume !(0 == ~wl_st~0); 33320#L295 assume !(0 == ~c1_st~0); 33952#L298 assume !(0 == ~c2_st~0); 32004#L301 assume !(0 == ~wb_st~0); 31951#L304 assume !(0 == ~r_st~0); 31953#L389 start_simulation_~kernel_st~0 := 2; 31889#L544 assume !(1 == ~c_req_up~0); 31890#L544-2 start_simulation_~kernel_st~0 := 3; 32078#L556 assume !(0 == ~e_f~0); 32079#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 32085#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 35735#L566-1 assume !(0 == ~e_c~0); 35734#L571-1 assume !(0 == ~e_wl~0); 34027#L576-1 assume !(1 == ~wl_pc~0); 34023#L588 assume 2 == ~wl_pc~0; 35732#L590 assume 1 == ~e_e~0;~wl_st~0 := 0; 35731#L589 assume !(1 == ~c1_pc~0); 35729#L599 assume !(1 == ~c2_pc~0); 35725#L608 assume !(1 == ~wb_pc~0); 35723#L617 assume !(1 == ~e_c~0); 35722#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 35721#L631-1 assume !(1 == ~e_f~0); 32068#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 32069#L641-1 assume !(1 == ~e_c~0); 33657#L646-1 assume !(1 == ~e_wl~0); 35688#L651-1 assume 0 == ~wl_st~0; 33369#L668-1 assume !false; 33356#L538 [2020-11-29 18:20:31,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:31,427 INFO L82 PathProgramCache]: Analyzing trace with hash -666176964, now seen corresponding path program 2 times [2020-11-29 18:20:31,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:31,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533646034] [2020-11-29 18:20:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:31,438 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:31,454 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:31,472 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:31,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:31,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1493800160, now seen corresponding path program 1 times [2020-11-29 18:20:31,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:31,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472070484] [2020-11-29 18:20:31,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:31,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:31,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:31,489 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:31,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:31,492 INFO L82 PathProgramCache]: Analyzing trace with hash 2131193989, now seen corresponding path program 1 times [2020-11-29 18:20:31,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:31,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739759148] [2020-11-29 18:20:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:31,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739759148] [2020-11-29 18:20:31,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:31,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:31,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739959607] [2020-11-29 18:20:31,726 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-11-29 18:20:31,789 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:31,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:31,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:31,789 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:31,789 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:20:31,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:31,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:31,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:31,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration12_Loop [2020-11-29 18:20:31,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:31,790 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:31,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:31,837 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 18:20:31,850 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 18:20:31,853 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 18:20:31,855 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 18:20:31,861 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 18:20:31,864 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 18:20:31,870 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 18:20:31,873 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 18:20:31,878 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 18:20:31,881 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 18:20:31,887 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 18:20:31,889 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 18:20:31,894 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 18:20:31,897 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 18:20:31,900 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 18:20:31,903 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 18:20:31,909 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 18:20:31,912 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 18:20:31,917 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 18:20:31,919 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 18:20:31,922 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 18:20:31,925 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 18:20:31,928 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 18:20:31,931 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 18:20:31,934 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 18:20:32,218 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:32,218 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:32,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:32,226 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:32,227 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c1_st~0=-5} Honda state: {~c1_st~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:32,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:32,257 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:32,257 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:32,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:32,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:32,289 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~wb_pc~0=-8} Honda state: {~wb_pc~0=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:32,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:32,316 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,319 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:32,319 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet10=0} Honda state: {ULTIMATE.start_eval_#t~nondet10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:32,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:32,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:32,351 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~e_f~0=3} Honda state: {~e_f~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:32,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:32,381 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:32,381 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet7=0} Honda state: {ULTIMATE.start_eval_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:32,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:32,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:32,411 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~e_wl~0=3} Honda state: {~e_wl~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:32,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:32,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:20:32,460 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=7} Honda state: {~c2_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:20:32,487 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:20:32,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:20:32,552 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:20:32,554 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:20:32,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:20:32,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:20:32,554 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:20:32,554 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:20:32,554 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:32,554 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:20:32,554 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:20:32,554 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration12_Loop [2020-11-29 18:20:32,554 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:20:32,555 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:20:32,556 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 18:20:32,566 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 18:20:32,570 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 18:20:32,574 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 18:20:32,577 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 18:20:32,583 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 18:20:32,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:32,593 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 18:20:32,596 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 18:20:32,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:32,616 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 18:20:32,619 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 18:20:32,622 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 18:20:32,625 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 18:20:32,628 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 18:20:32,631 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 18:20:32,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:32,640 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 18:20:32,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:32,646 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 18:20:32,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:32,651 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 18:20:32,663 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 18:20:32,666 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 18:20:32,669 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 18:20:32,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:20:33,001 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:20:33,001 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:20:33,011 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 18:20:33,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,014 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:33,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,018 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:33,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,049 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 18:20:33,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:33,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,051 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:33,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,052 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:33,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,081 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 18:20:33,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:33,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:33,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:33,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,112 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 18:20:33,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:33,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:33,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:33,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,149 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 18:20:33,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:33,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,150 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:33,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,151 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:33,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,182 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 18:20:33,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:33,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:33,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:33,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,213 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 18:20:33,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:33,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,215 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:33,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,216 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:33,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,244 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 18:20:33,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:33,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,246 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:33,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,246 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:33,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,248 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,275 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 18:20:33,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:33,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,277 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:20:33,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,279 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:20:33,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,317 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 18:20:33,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:20:33,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:20:33,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:20:33,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:20:33,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:20:33,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:20:33,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:20:33,324 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:20:33,326 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:20:33,327 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_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:33,329 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:20:33,329 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:20:33,329 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:20:33,329 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_g~0) = -1*~e_g~0 + 1 Supporting invariants [] [2020-11-29 18:20:33,355 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:20:33,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:33,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:20:33,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:33,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:20:33,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:33,482 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 18:20:33,483 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 18:20:33,483 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 3939 states and 6623 transitions. cyclomatic complexity: 2694 Second operand 5 states. [2020-11-29 18:20:33,610 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 3939 states and 6623 transitions. cyclomatic complexity: 2694. Second operand 5 states. Result 11292 states and 18969 transitions. Complement of second has 5 states. [2020-11-29 18:20:33,611 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 18:20:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 18:20:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-11-29 18:20:33,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 197 transitions. Stem has 25 letters. Loop has 29 letters. [2020-11-29 18:20:33,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:33,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 197 transitions. Stem has 54 letters. Loop has 29 letters. [2020-11-29 18:20:33,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:33,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 197 transitions. Stem has 25 letters. Loop has 58 letters. [2020-11-29 18:20:33,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:20:33,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11292 states and 18969 transitions. [2020-11-29 18:20:33,704 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 2584 [2020-11-29 18:20:33,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11292 states to 11292 states and 18969 transitions. [2020-11-29 18:20:33,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2899 [2020-11-29 18:20:33,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2940 [2020-11-29 18:20:33,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11292 states and 18969 transitions. [2020-11-29 18:20:33,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:33,798 INFO L691 BuchiCegarLoop]: Abstraction has 11292 states and 18969 transitions. [2020-11-29 18:20:33,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11292 states and 18969 transitions. [2020-11-29 18:20:34,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11292 to 11251. [2020-11-29 18:20:34,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11251 states. [2020-11-29 18:20:34,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11251 states to 11251 states and 18912 transitions. [2020-11-29 18:20:34,060 INFO L714 BuchiCegarLoop]: Abstraction has 11251 states and 18912 transitions. [2020-11-29 18:20:34,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:34,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:34,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:34,061 INFO L87 Difference]: Start difference. First operand 11251 states and 18912 transitions. Second operand 3 states. [2020-11-29 18:20:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:34,194 INFO L93 Difference]: Finished difference Result 10015 states and 16787 transitions. [2020-11-29 18:20:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:34,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10015 states and 16787 transitions. [2020-11-29 18:20:34,275 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 2584 [2020-11-29 18:20:34,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10015 states to 10015 states and 16787 transitions. [2020-11-29 18:20:34,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2899 [2020-11-29 18:20:34,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2899 [2020-11-29 18:20:34,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10015 states and 16787 transitions. [2020-11-29 18:20:34,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:34,334 INFO L691 BuchiCegarLoop]: Abstraction has 10015 states and 16787 transitions. [2020-11-29 18:20:34,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10015 states and 16787 transitions. [2020-11-29 18:20:34,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10015 to 9301. [2020-11-29 18:20:34,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9301 states. [2020-11-29 18:20:34,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9301 states to 9301 states and 15639 transitions. [2020-11-29 18:20:34,628 INFO L714 BuchiCegarLoop]: Abstraction has 9301 states and 15639 transitions. [2020-11-29 18:20:34,628 INFO L594 BuchiCegarLoop]: Abstraction has 9301 states and 15639 transitions. [2020-11-29 18:20:34,628 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-11-29 18:20:34,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9301 states and 15639 transitions. [2020-11-29 18:20:34,664 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 2584 [2020-11-29 18:20:34,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:34,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:34,665 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] [2020-11-29 18:20:34,665 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:34,666 INFO L794 eck$LassoCheckResult]: Stem: 68784#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 68585#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 68586#L400 assume !(1 == ~c_req_up~0); 68655#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 68656#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 68692#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 68736#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 68754#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 68545#L431-1 assume !(0 == ~e_f~0); 68546#L436-1 assume !(0 == ~e_g~0); 68627#L441-1 assume !(0 == ~e_e~0); 68834#L446-1 assume !(0 == ~e_c~0); 68833#L451-1 assume !(0 == ~e_wl~0); 68831#L456-1 assume !(1 == ~wl_pc~0); 68826#L468 assume !(2 == ~wl_pc~0); 68824#L469 assume !(1 == ~c1_pc~0); 68821#L479 assume !(1 == ~c2_pc~0); 68818#L488 assume !(1 == ~wb_pc~0); 68591#L497 assume !(1 == ~e_c~0); 68592#L506-1 assume !(1 == ~e_e~0); 68845#L511-1 assume !(1 == ~e_f~0); 68844#L516-1 assume !(1 == ~e_g~0); 68680#L521-1 assume !(1 == ~e_c~0); 68681#L526-1 assume !(1 == ~e_wl~0); 69202#L668-1 assume !false; 69132#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 69133#L373 [2020-11-29 18:20:34,666 INFO L796 eck$LassoCheckResult]: Loop: 69133#L373 assume !false; 75237#L291 assume 0 == ~wl_st~0; 75232#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 75231#L317 assume !(0 != eval_~tmp~0); 75227#L313 assume !(0 == ~c1_st~0); 75223#L328 assume !(0 == ~c2_st~0); 75250#L343 assume !(0 == ~wb_st~0); 75246#L358 assume !(0 == ~r_st~0); 69133#L373 [2020-11-29 18:20:34,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:34,667 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 1 times [2020-11-29 18:20:34,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:34,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091228637] [2020-11-29 18:20:34,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:34,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:34,688 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:34,696 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:34,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:34,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1282692020, now seen corresponding path program 1 times [2020-11-29 18:20:34,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:34,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701548320] [2020-11-29 18:20:34,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:34,703 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:34,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:34,714 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:34,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:34,714 INFO L82 PathProgramCache]: Analyzing trace with hash 363737516, now seen corresponding path program 1 times [2020-11-29 18:20:34,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:34,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021230065] [2020-11-29 18:20:34,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:34,773 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 18:20:34,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021230065] [2020-11-29 18:20:34,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:34,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:34,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111155009] [2020-11-29 18:20:34,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:34,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:34,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:34,816 INFO L87 Difference]: Start difference. First operand 9301 states and 15639 transitions. cyclomatic complexity: 6359 Second operand 3 states. [2020-11-29 18:20:34,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:34,908 INFO L93 Difference]: Finished difference Result 14826 states and 24682 transitions. [2020-11-29 18:20:34,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:34,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14826 states and 24682 transitions. [2020-11-29 18:20:35,083 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4004 [2020-11-29 18:20:35,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14826 states to 14826 states and 24682 transitions. [2020-11-29 18:20:35,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4615 [2020-11-29 18:20:35,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4615 [2020-11-29 18:20:35,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14826 states and 24682 transitions. [2020-11-29 18:20:35,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:35,177 INFO L691 BuchiCegarLoop]: Abstraction has 14826 states and 24682 transitions. [2020-11-29 18:20:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14826 states and 24682 transitions. [2020-11-29 18:20:35,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14826 to 14826. [2020-11-29 18:20:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14826 states. [2020-11-29 18:20:35,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14826 states to 14826 states and 24682 transitions. [2020-11-29 18:20:35,493 INFO L714 BuchiCegarLoop]: Abstraction has 14826 states and 24682 transitions. [2020-11-29 18:20:35,493 INFO L594 BuchiCegarLoop]: Abstraction has 14826 states and 24682 transitions. [2020-11-29 18:20:35,493 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-11-29 18:20:35,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14826 states and 24682 transitions. [2020-11-29 18:20:35,547 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4004 [2020-11-29 18:20:35,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:35,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:35,548 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] [2020-11-29 18:20:35,548 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:35,549 INFO L794 eck$LassoCheckResult]: Stem: 92930#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 92720#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 92721#L400 assume !(1 == ~c_req_up~0); 92793#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 92794#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 92834#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 92903#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 92904#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 92680#L431-1 assume !(0 == ~e_f~0); 92681#L436-1 assume !(0 == ~e_g~0); 92761#L441-1 assume !(0 == ~e_e~0); 92889#L446-1 assume !(0 == ~e_c~0); 92890#L451-1 assume !(0 == ~e_wl~0); 92983#L456-1 assume !(1 == ~wl_pc~0); 92978#L468 assume !(2 == ~wl_pc~0); 92976#L469 assume !(1 == ~c1_pc~0); 92972#L479 assume !(1 == ~c2_pc~0); 92969#L488 assume !(1 == ~wb_pc~0); 92727#L497 assume !(1 == ~e_c~0); 92728#L506-1 assume !(1 == ~e_e~0); 92992#L511-1 assume !(1 == ~e_f~0); 92991#L516-1 assume !(1 == ~e_g~0); 92818#L521-1 assume !(1 == ~e_c~0); 92819#L526-1 assume !(1 == ~e_wl~0); 92882#L668-1 assume !false; 93672#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 93673#L373 [2020-11-29 18:20:35,549 INFO L796 eck$LassoCheckResult]: Loop: 93673#L373 assume !false; 103306#L291 assume 0 == ~wl_st~0; 103305#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 103304#L317 assume !(0 != eval_~tmp~0); 103303#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 103294#L332 assume !(0 != eval_~tmp___0~0); 103302#L328 assume !(0 == ~c2_st~0); 103319#L343 assume !(0 == ~wb_st~0); 103316#L358 assume !(0 == ~r_st~0); 93673#L373 [2020-11-29 18:20:35,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:35,550 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 2 times [2020-11-29 18:20:35,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:35,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289288409] [2020-11-29 18:20:35,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:35,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:35,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:35,586 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:35,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:35,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1057974720, now seen corresponding path program 1 times [2020-11-29 18:20:35,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:35,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500518981] [2020-11-29 18:20:35,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:35,591 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:35,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:35,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:35,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:35,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1659811128, now seen corresponding path program 1 times [2020-11-29 18:20:35,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:35,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307591307] [2020-11-29 18:20:35,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:35,779 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 18:20:35,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307591307] [2020-11-29 18:20:35,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:35,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:35,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959106130] [2020-11-29 18:20:35,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:35,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:35,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:35,847 INFO L87 Difference]: Start difference. First operand 14826 states and 24682 transitions. cyclomatic complexity: 9877 Second operand 3 states. [2020-11-29 18:20:36,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:36,035 INFO L93 Difference]: Finished difference Result 23728 states and 38921 transitions. [2020-11-29 18:20:36,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:36,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23728 states and 38921 transitions. [2020-11-29 18:20:36,271 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6280 [2020-11-29 18:20:36,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23728 states to 23728 states and 38921 transitions. [2020-11-29 18:20:36,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7458 [2020-11-29 18:20:36,484 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7458 [2020-11-29 18:20:36,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23728 states and 38921 transitions. [2020-11-29 18:20:36,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:36,487 INFO L691 BuchiCegarLoop]: Abstraction has 23728 states and 38921 transitions. [2020-11-29 18:20:36,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23728 states and 38921 transitions. [2020-11-29 18:20:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23728 to 23728. [2020-11-29 18:20:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23728 states. [2020-11-29 18:20:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23728 states to 23728 states and 38921 transitions. [2020-11-29 18:20:37,013 INFO L714 BuchiCegarLoop]: Abstraction has 23728 states and 38921 transitions. [2020-11-29 18:20:37,014 INFO L594 BuchiCegarLoop]: Abstraction has 23728 states and 38921 transitions. [2020-11-29 18:20:37,014 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-11-29 18:20:37,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23728 states and 38921 transitions. [2020-11-29 18:20:37,111 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6280 [2020-11-29 18:20:37,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:37,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:37,112 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] [2020-11-29 18:20:37,112 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:37,113 INFO L794 eck$LassoCheckResult]: Stem: 131519#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 131282#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 131283#L400 assume !(1 == ~c_req_up~0); 131397#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 131401#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 131402#L416-1 assume !(1 == ~c2_i~0);~c2_st~0 := 2; 131582#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 136726#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 136725#L431-1 assume !(0 == ~e_f~0); 136724#L436-1 assume !(0 == ~e_g~0); 136723#L441-1 assume !(0 == ~e_e~0); 136722#L446-1 assume !(0 == ~e_c~0); 136721#L451-1 assume !(0 == ~e_wl~0); 136720#L456-1 assume !(1 == ~wl_pc~0); 131573#L468 assume !(2 == ~wl_pc~0); 131571#L469 assume !(1 == ~c1_pc~0); 131567#L479 assume !(1 == ~c2_pc~0); 131564#L488 assume !(1 == ~wb_pc~0); 131288#L497 assume !(1 == ~e_c~0); 131289#L506-1 assume !(1 == ~e_e~0); 131587#L511-1 assume !(1 == ~e_f~0); 131586#L516-1 assume !(1 == ~e_g~0); 131386#L521-1 assume !(1 == ~e_c~0); 131387#L526-1 assume !(1 == ~e_wl~0); 131459#L668-1 assume !false; 132258#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 132259#L373 [2020-11-29 18:20:37,113 INFO L796 eck$LassoCheckResult]: Loop: 132259#L373 assume !false; 151422#L291 assume 0 == ~wl_st~0; 151421#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 151418#L317 assume !(0 != eval_~tmp~0); 145391#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 145388#L332 assume !(0 != eval_~tmp___0~0); 145389#L328 assume !(0 == ~c2_st~0); 151433#L343 assume !(0 == ~wb_st~0); 151427#L358 assume !(0 == ~r_st~0); 132259#L373 [2020-11-29 18:20:37,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:37,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1246052603, now seen corresponding path program 1 times [2020-11-29 18:20:37,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:37,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204275056] [2020-11-29 18:20:37,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:37,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204275056] [2020-11-29 18:20:37,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:37,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:37,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707077051] [2020-11-29 18:20:37,146 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:20:37,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:37,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1057974720, now seen corresponding path program 2 times [2020-11-29 18:20:37,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:37,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211434333] [2020-11-29 18:20:37,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,158 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:37,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:37,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:37,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:37,215 INFO L87 Difference]: Start difference. First operand 23728 states and 38921 transitions. cyclomatic complexity: 15214 Second operand 3 states. [2020-11-29 18:20:37,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:37,316 INFO L93 Difference]: Finished difference Result 23657 states and 38802 transitions. [2020-11-29 18:20:37,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:37,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23657 states and 38802 transitions. [2020-11-29 18:20:37,579 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6280 [2020-11-29 18:20:37,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23657 states to 23657 states and 38802 transitions. [2020-11-29 18:20:37,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7391 [2020-11-29 18:20:37,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7391 [2020-11-29 18:20:37,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23657 states and 38802 transitions. [2020-11-29 18:20:37,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:37,688 INFO L691 BuchiCegarLoop]: Abstraction has 23657 states and 38802 transitions. [2020-11-29 18:20:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23657 states and 38802 transitions. [2020-11-29 18:20:38,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23657 to 23657. [2020-11-29 18:20:38,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23657 states. [2020-11-29 18:20:38,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23657 states to 23657 states and 38802 transitions. [2020-11-29 18:20:38,150 INFO L714 BuchiCegarLoop]: Abstraction has 23657 states and 38802 transitions. [2020-11-29 18:20:38,150 INFO L594 BuchiCegarLoop]: Abstraction has 23657 states and 38802 transitions. [2020-11-29 18:20:38,150 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-11-29 18:20:38,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23657 states and 38802 transitions. [2020-11-29 18:20:38,336 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6280 [2020-11-29 18:20:38,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:38,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:38,337 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] [2020-11-29 18:20:38,337 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:38,337 INFO L794 eck$LassoCheckResult]: Stem: 178891#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 178673#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 178674#L400 assume !(1 == ~c_req_up~0); 178754#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 178755#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 178789#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 178847#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 178865#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 178633#L431-1 assume !(0 == ~e_f~0); 178634#L436-1 assume !(0 == ~e_g~0); 178719#L441-1 assume !(0 == ~e_e~0); 178939#L446-1 assume !(0 == ~e_c~0); 178938#L451-1 assume !(0 == ~e_wl~0); 178936#L456-1 assume !(1 == ~wl_pc~0); 178931#L468 assume !(2 == ~wl_pc~0); 178929#L469 assume !(1 == ~c1_pc~0); 178926#L479 assume !(1 == ~c2_pc~0); 178923#L488 assume !(1 == ~wb_pc~0); 178679#L497 assume !(1 == ~e_c~0); 178680#L506-1 assume !(1 == ~e_e~0); 178950#L511-1 assume !(1 == ~e_f~0); 178949#L516-1 assume !(1 == ~e_g~0); 178777#L521-1 assume !(1 == ~e_c~0); 178778#L526-1 assume !(1 == ~e_wl~0); 182464#L668-1 assume !false; 179645#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 179646#L373 [2020-11-29 18:20:38,338 INFO L796 eck$LassoCheckResult]: Loop: 179646#L373 assume !false; 192302#L291 assume 0 == ~wl_st~0; 192299#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 192297#L317 assume !(0 != eval_~tmp~0); 192298#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 192407#L332 assume !(0 != eval_~tmp___0~0); 192515#L328 assume 0 == ~c2_st~0;eval_~tmp___1~0 := eval_#t~nondet9;havoc eval_#t~nondet9; 192506#L347 assume !(0 != eval_~tmp___1~0); 192313#L343 assume !(0 == ~wb_st~0); 192309#L358 assume !(0 == ~r_st~0); 179646#L373 [2020-11-29 18:20:38,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:38,339 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 3 times [2020-11-29 18:20:38,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:38,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838269747] [2020-11-29 18:20:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:38,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:38,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:38,372 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:38,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1564142017, now seen corresponding path program 1 times [2020-11-29 18:20:38,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:38,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490092152] [2020-11-29 18:20:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:38,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:38,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:38,381 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:38,381 INFO L82 PathProgramCache]: Analyzing trace with hash 83842615, now seen corresponding path program 1 times [2020-11-29 18:20:38,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:38,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575073921] [2020-11-29 18:20:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:38,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:38,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575073921] [2020-11-29 18:20:38,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:38,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:38,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203671616] [2020-11-29 18:20:38,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:38,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:38,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:38,487 INFO L87 Difference]: Start difference. First operand 23657 states and 38802 transitions. cyclomatic complexity: 15166 Second operand 3 states. [2020-11-29 18:20:38,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:38,732 INFO L93 Difference]: Finished difference Result 39861 states and 64279 transitions. [2020-11-29 18:20:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:38,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39861 states and 64279 transitions. [2020-11-29 18:20:38,891 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10688 [2020-11-29 18:20:39,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39861 states to 39861 states and 64279 transitions. [2020-11-29 18:20:39,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12447 [2020-11-29 18:20:39,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12447 [2020-11-29 18:20:39,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39861 states and 64279 transitions. [2020-11-29 18:20:39,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:20:39,091 INFO L691 BuchiCegarLoop]: Abstraction has 39861 states and 64279 transitions. [2020-11-29 18:20:39,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39861 states and 64279 transitions. [2020-11-29 18:20:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39861 to 39861. [2020-11-29 18:20:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39861 states. [2020-11-29 18:20:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39861 states to 39861 states and 64279 transitions. [2020-11-29 18:20:40,256 INFO L714 BuchiCegarLoop]: Abstraction has 39861 states and 64279 transitions. [2020-11-29 18:20:40,257 INFO L594 BuchiCegarLoop]: Abstraction has 39861 states and 64279 transitions. [2020-11-29 18:20:40,257 INFO L427 BuchiCegarLoop]: ======== Iteration 17============ [2020-11-29 18:20:40,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39861 states and 64279 transitions. [2020-11-29 18:20:40,377 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10688 [2020-11-29 18:20:40,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:40,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:40,378 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] [2020-11-29 18:20:40,378 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:40,378 INFO L794 eck$LassoCheckResult]: Stem: 242436#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 242195#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 242196#L400 assume !(1 == ~c_req_up~0); 242275#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 242276#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 242320#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 242401#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 242402#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 242157#L431-1 assume !(0 == ~e_f~0); 242158#L436-1 assume !(0 == ~e_g~0); 242241#L441-1 assume !(0 == ~e_e~0); 242383#L446-1 assume !(0 == ~e_c~0); 242384#L451-1 assume !(0 == ~e_wl~0); 242498#L456-1 assume !(1 == ~wl_pc~0); 242493#L468 assume !(2 == ~wl_pc~0); 242491#L469 assume !(1 == ~c1_pc~0); 242487#L479 assume !(1 == ~c2_pc~0); 242484#L488 assume !(1 == ~wb_pc~0); 242201#L497 assume !(1 == ~e_c~0); 242202#L506-1 assume !(1 == ~e_e~0); 242507#L511-1 assume !(1 == ~e_f~0); 242506#L516-1 assume !(1 == ~e_g~0); 242302#L521-1 assume !(1 == ~e_c~0); 242303#L526-1 assume !(1 == ~e_wl~0); 242375#L668-1 assume !false; 244932#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 244933#L373 [2020-11-29 18:20:40,378 INFO L796 eck$LassoCheckResult]: Loop: 244933#L373 assume !false; 267372#L291 assume 0 == ~wl_st~0; 267369#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 267168#L317 assume !(0 != eval_~tmp~0); 267131#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 267129#L332 assume !(0 != eval_~tmp___0~0); 266854#L328 assume 0 == ~c2_st~0;eval_~tmp___1~0 := eval_#t~nondet9;havoc eval_#t~nondet9; 266851#L347 assume !(0 != eval_~tmp___1~0); 266848#L343 assume 0 == ~wb_st~0;eval_~tmp___2~0 := eval_#t~nondet10;havoc eval_#t~nondet10; 266834#L362 assume !(0 != eval_~tmp___2~0); 266847#L358 assume !(0 == ~r_st~0); 244933#L373 [2020-11-29 18:20:40,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:40,379 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 4 times [2020-11-29 18:20:40,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:40,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64826039] [2020-11-29 18:20:40,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:40,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:40,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:40,401 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:40,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:40,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1243796683, now seen corresponding path program 1 times [2020-11-29 18:20:40,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:40,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193823635] [2020-11-29 18:20:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:40,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:40,408 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:40,410 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:40,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:40,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1695880643, now seen corresponding path program 1 times [2020-11-29 18:20:40,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:40,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162668473] [2020-11-29 18:20:40,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:40,421 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:40,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:40,437 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:41,605 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 200 DAG size of output: 157 [2020-11-29 18:20:42,066 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-11-29 18:20:42,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:20:42 BoogieIcfgContainer [2020-11-29 18:20:42,095 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:20:42,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:20:42,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:20:42,096 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:20:42,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:17" (3/4) ... [2020-11-29 18:20:42,099 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:20:42,149 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e31ccdf-eaff-4e4b-a4c6-712934957460/bin/uautomizer/witness.graphml [2020-11-29 18:20:42,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:20:42,150 INFO L168 Benchmark]: Toolchain (without parser) took 25987.74 ms. Allocated memory was 104.9 MB in the beginning and 8.4 GB in the end (delta: 8.3 GB). Free memory was 68.3 MB in the beginning and 8.0 GB in the end (delta: -7.9 GB). Peak memory consumption was 393.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:42,151 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 76.9 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:20:42,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.89 ms. Allocated memory is still 104.9 MB. Free memory was 68.0 MB in the beginning and 76.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:42,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.81 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 74.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:42,152 INFO L168 Benchmark]: Boogie Preprocessor took 69.20 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 71.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:42,153 INFO L168 Benchmark]: RCFGBuilder took 1057.30 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.9 MB in the beginning and 102.0 MB in the end (delta: -30.1 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:42,154 INFO L168 Benchmark]: BuchiAutomizer took 24172.48 ms. Allocated memory was 125.8 MB in the beginning and 8.4 GB in the end (delta: 8.3 GB). Free memory was 101.3 MB in the beginning and 8.0 GB in the end (delta: -7.9 GB). Peak memory consumption was 554.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:42,154 INFO L168 Benchmark]: Witness Printer took 53.77 ms. Allocated memory is still 8.4 GB. Free memory was 8.0 GB in the beginning and 8.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:42,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 76.9 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 525.89 ms. Allocated memory is still 104.9 MB. Free memory was 68.0 MB in the beginning and 76.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 101.81 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 74.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.20 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 71.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1057.30 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.9 MB in the beginning and 102.0 MB in the end (delta: -30.1 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 24172.48 ms. Allocated memory was 125.8 MB in the beginning and 8.4 GB in the end (delta: 8.3 GB). Free memory was 101.3 MB in the beginning and 8.0 GB in the end (delta: -7.9 GB). Peak memory consumption was 554.5 MB. Max. memory is 16.1 GB. * Witness Printer took 53.77 ms. Allocated memory is still 8.4 GB. Free memory was 8.0 GB in the beginning and 8.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. 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 21 terminating modules (16 trivial, 5 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * e_c + 1 and consists of 3 locations. One deterministic module has affine ranking function -2 * e_c + 3 and consists of 4 locations. One deterministic module has affine ranking function -1 * e_f + 1 and consists of 3 locations. One deterministic module has affine ranking function -1 * e_wl + 1 and consists of 3 locations. One deterministic module has affine ranking function -1 * e_g + 1 and consists of 3 locations. 16 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 39861 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 24.0s and 17 iterations. TraceHistogramMax:1. Analysis of lassos took 13.8s. Construction of modules took 1.1s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 16. Automata minimization 3.6s AutomataMinimizationTime, 21 MinimizatonAttempts, 3137 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 2.1s Buchi closure took 0.0s. Biggest automaton had 39861 states and ocurred in iteration 16. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5367 SDtfs, 5113 SDslu, 3633 SDs, 0 SdLazy, 444 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc3 concLT1 SILN1 SILU0 SILI5 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital80 mio100 ax100 hnf100 lsp11 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq183 hnf97 smp100 dnf186 smp77 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 27 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 290]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {wb_st=0, NULL=0, NULL=1, c2_st=0, tmp=0, e_c=2, e_e=2, e_p_in=0, kernel_st=1, t_b=0, tmp___2=0, wb_pc=0, tmp___0=0, wb_i=1, c_t=0, NULL=0, NULL=0, c=0, wl_st=0, c2_pc=0, r_i=0, e_f=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64e593a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c69aab9=0, NULL=0, r_st=2, __retres1=0, p_out=0, NULL=3, processed=0, \result=0, wl_pc=0, e_wl=2, tmp___1=0, data=0, p_in=0, tmp___3=0, c_req_up=0, NULL=4, wl_i=1, NULL=0, c1_st=0, NULL=2, c1_i=1, c2_i=1, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f195371=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@440a48d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@608d0136=0, e_g=2, c1_pc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 290]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L20] int c ; [L21] int c_t ; [L22] int c_req_up ; [L23] int p_in ; [L24] int p_out ; [L25] int wl_st ; [L26] int c1_st ; [L27] int c2_st ; [L28] int wb_st ; [L29] int r_st ; [L30] int wl_i ; [L31] int c1_i ; [L32] int c2_i ; [L33] int wb_i ; [L34] int r_i ; [L35] int wl_pc ; [L36] int c1_pc ; [L37] int c2_pc ; [L38] int wb_pc ; [L39] int e_e ; [L40] int e_f ; [L41] int e_g ; [L42] int e_c ; [L43] int e_p_in ; [L44] int e_wl ; [L50] int d ; [L51] int data ; [L52] int processed ; [L53] static int t_b ; [L685] int __retres1 ; [L689] e_wl = 2 [L690] e_c = e_wl [L691] e_g = e_c [L692] e_f = e_g [L693] e_e = e_f [L694] wl_pc = 0 [L695] c1_pc = 0 [L696] c2_pc = 0 [L697] wb_pc = 0 [L698] wb_i = 1 [L699] c2_i = wb_i [L700] c1_i = c2_i [L701] wl_i = c1_i [L702] r_i = 0 [L703] c_req_up = 0 [L704] d = 0 [L705] c = 0 [L396] int kernel_st ; [L399] kernel_st = 0 [L400] COND FALSE !((int )c_req_up == 1) [L411] COND TRUE (int )wl_i == 1 [L412] wl_st = 0 [L416] COND TRUE (int )c1_i == 1 [L417] c1_st = 0 [L421] COND TRUE (int )c2_i == 1 [L422] c2_st = 0 [L426] COND TRUE (int )wb_i == 1 [L427] wb_st = 0 [L431] COND FALSE !((int )r_i == 1) [L434] r_st = 2 [L436] COND FALSE !((int )e_f == 0) [L441] COND FALSE !((int )e_g == 0) [L446] COND FALSE !((int )e_e == 0) [L451] COND FALSE !((int )e_c == 0) [L456] COND FALSE !((int )e_wl == 0) [L461] COND FALSE !((int )wl_pc == 1) [L469] COND FALSE !((int )wl_pc == 2) [L479] COND FALSE !((int )c1_pc == 1) [L488] COND FALSE !((int )c2_pc == 1) [L497] COND FALSE !((int )wb_pc == 1) [L506] COND FALSE !((int )e_c == 1) [L511] COND FALSE !((int )e_e == 1) [L516] COND FALSE !((int )e_f == 1) [L521] COND FALSE !((int )e_g == 1) [L526] COND FALSE !((int )e_c == 1) [L531] COND FALSE !((int )e_wl == 1) [L537] COND TRUE 1 [L540] kernel_st = 1 [L282] int tmp ; [L283] int tmp___0 ; [L284] int tmp___1 ; [L285] int tmp___2 ; [L286] int tmp___3 ; Loop: [L290] COND TRUE 1 [L292] COND TRUE (int )wl_st == 0 [L313] COND TRUE (int )wl_st == 0 [L315] tmp = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp)) [L328] COND TRUE (int )c1_st == 0 [L330] tmp___0 = __VERIFIER_nondet_int() [L332] COND FALSE !(\read(tmp___0)) [L343] COND TRUE (int )c2_st == 0 [L345] tmp___1 = __VERIFIER_nondet_int() [L347] COND FALSE !(\read(tmp___1)) [L358] COND TRUE (int )wb_st == 0 [L360] tmp___2 = __VERIFIER_nondet_int() [L362] COND FALSE !(\read(tmp___2)) [L373] COND FALSE !((int )r_st == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...