./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02-2.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_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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 c39fd0351744516d27a824f9d04afb4690ded14c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:19:27,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:27,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:27,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:27,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:27,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:27,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:27,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:27,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:27,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:27,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:27,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:27,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:27,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:27,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:27,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:27,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:27,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:27,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:28,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:28,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:28,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:28,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:28,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:28,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:28,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:28,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:28,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:28,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:28,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:28,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:28,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:28,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:28,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:28,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:28,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:28,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:28,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:28,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:28,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:28,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:28,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:19:28,088 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:28,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:28,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:28,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:28,092 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:28,092 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:19:28,092 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:19:28,093 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:19:28,093 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:19:28,093 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:19:28,095 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:19:28,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:28,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:28,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:19:28,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:28,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:28,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:28,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:19:28,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:19:28,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:19:28,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:28,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:28,098 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:19:28,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:28,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:19:28,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:28,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:28,100 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:19:28,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:28,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:28,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:28,103 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:19:28,104 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:19:28,105 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_294e553a-4917-4041-bc9f-8057d264695e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c39fd0351744516d27a824f9d04afb4690ded14c [2020-11-28 03:19:28,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:28,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:28,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:28,470 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:28,471 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:28,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_02-2.c [2020-11-28 03:19:28,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/data/3f87f3781/8d79ea96bd8543d5baabbee87ff1a50d/FLAGc19f9fcaa [2020-11-28 03:19:29,105 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:29,106 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/sv-benchmarks/c/loops/terminator_02-2.c [2020-11-28 03:19:29,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/data/3f87f3781/8d79ea96bd8543d5baabbee87ff1a50d/FLAGc19f9fcaa [2020-11-28 03:19:29,475 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/data/3f87f3781/8d79ea96bd8543d5baabbee87ff1a50d [2020-11-28 03:19:29,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:29,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:29,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:29,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:29,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:29,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6115bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29, skipping insertion in model container [2020-11-28 03:19:29,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:29,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:29,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:29,746 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:29,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:29,779 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:29,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29 WrapperNode [2020-11-28 03:19:29,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:29,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:29,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:29,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:29,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:29,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:29,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:29,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:29,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:29,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:29,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:29,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:29,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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 [2020-11-28 03:19:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:30,455 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:30,456 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:19:30,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:30 BoogieIcfgContainer [2020-11-28 03:19:30,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:30,460 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:19:30,460 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:19:30,464 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:19:30,465 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:30,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:19:29" (1/3) ... [2020-11-28 03:19:30,467 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@118bc5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:19:30, skipping insertion in model container [2020-11-28 03:19:30,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:30,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (2/3) ... [2020-11-28 03:19:30,468 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@118bc5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:19:30, skipping insertion in model container [2020-11-28 03:19:30,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:30,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:30" (3/3) ... [2020-11-28 03:19:30,471 INFO L373 chiAutomizerObserver]: Analyzing ICFG terminator_02-2.c [2020-11-28 03:19:30,544 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:19:30,544 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:19:30,544 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:19:30,544 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:30,545 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:30,545 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:19:30,545 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:30,545 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:19:30,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-28 03:19:30,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:19:30,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:30,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:30,590 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:19:30,590 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:19:30,590 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:19:30,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-28 03:19:30,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:19:30,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:30,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:30,603 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:19:30,603 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:19:30,610 INFO L794 eck$LassoCheckResult]: Stem: 9#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(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 7#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 11#L22true assume !!(main_~x~0 > -100); 12#L23true assume !!(main_~x~0 < 200); 14#L24true assume !!(main_~z~0 > 100); 18#L25true assume !!(main_~z~0 < 200); 3#L29-2true [2020-11-28 03:19:30,611 INFO L796 eck$LassoCheckResult]: Loop: 3#L29-2true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 5#L29true assume 0 != main_~tmp~0 % 256;main_#t~post10 := main_~x~0;main_~x~0 := 1 + main_#t~post10;havoc main_#t~post10; 3#L29-2true [2020-11-28 03:19:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:30,618 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2020-11-28 03:19:30,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:30,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135839817] [2020-11-28 03:19:30,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:30,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:30,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:30,833 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:30,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:30,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 1 times [2020-11-28 03:19:30,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:30,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402641695] [2020-11-28 03:19:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:30,856 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:30,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:30,875 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:30,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:30,879 INFO L82 PathProgramCache]: Analyzing trace with hash 179567792, now seen corresponding path program 1 times [2020-11-28 03:19:30,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:30,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832150449] [2020-11-28 03:19:30,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:30,913 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:30,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:30,968 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:31,082 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:31,083 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:31,083 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:31,083 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:31,084 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:19:31,084 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,084 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:31,084 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:31,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2020-11-28 03:19:31,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:31,086 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:31,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:31,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:31,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:31,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:31,315 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:31,323 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:31,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:31,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:31,351 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet9=253, ULTIMATE.start_main_~tmp~0=253} Honda state: {ULTIMATE.start_main_#t~nondet9=253, ULTIMATE.start_main_~tmp~0=253} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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) [2020-11-28 03:19:31,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:31,399 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,402 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:31,402 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post10=0} Honda state: {ULTIMATE.start_main_#t~post10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,426 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:31,426 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:31,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:31,435 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:31,465 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:19:31,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:31,541 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:19:31,543 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:31,543 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:31,543 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:31,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:31,544 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:19:31,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:31,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:31,544 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2020-11-28 03:19:31,544 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:31,544 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:31,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:31,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:31,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:31,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:31,734 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:31,739 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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) [2020-11-28 03:19:31,751 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 [2020-11-28 03:19:31,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:31,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:31,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:31,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:31,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:31,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:31,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,798 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 [2020-11-28 03:19:31,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:31,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:31,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:31,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:31,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:31,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:31,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:31,802 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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 [2020-11-28 03:19:31,839 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 [2020-11-28 03:19:31,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:31,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:31,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:31,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:31,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:31,843 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:31,843 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:31,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,869 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 [2020-11-28 03:19:31,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:31,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:31,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:31,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:31,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:31,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:31,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:31,880 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:19:31,891 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:19:31,891 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_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:31,895 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:19:31,895 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:19:31,895 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:19:31,896 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2020-11-28 03:19:31,920 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:19:31,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:32,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:19:32,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:32,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:32,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:32,054 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:19:32,056 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-11-28 03:19:32,167 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 45 states and 58 transitions. Complement of second has 8 states. [2020-11-28 03:19:32,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:19:32,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:19:32,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-11-28 03:19:32,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 03:19:32,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:32,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-28 03:19:32,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:32,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 03:19:32,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:32,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2020-11-28 03:19:32,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:19:32,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 12 states and 15 transitions. [2020-11-28 03:19:32,183 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-28 03:19:32,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-28 03:19:32,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-11-28 03:19:32,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:19:32,184 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-11-28 03:19:32,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-11-28 03:19:32,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-28 03:19:32,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 03:19:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-11-28 03:19:32,207 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-11-28 03:19:32,207 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-11-28 03:19:32,207 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:19:32,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2020-11-28 03:19:32,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:19:32,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:32,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:32,208 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:32,208 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:19:32,209 INFO L794 eck$LassoCheckResult]: Stem: 115#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(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 113#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 114#L22 assume !!(main_~x~0 > -100); 121#L23 assume !!(main_~x~0 < 200); 122#L24 assume !!(main_~z~0 > 100); 123#L25 assume !!(main_~z~0 < 200); 124#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 120#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 116#L29-2 [2020-11-28 03:19:32,209 INFO L796 eck$LassoCheckResult]: Loop: 116#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 117#L29 assume 0 != main_~tmp~0 % 256;main_#t~post10 := main_~x~0;main_~x~0 := 1 + main_#t~post10;havoc main_#t~post10; 116#L29-2 [2020-11-28 03:19:32,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:32,209 INFO L82 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 1 times [2020-11-28 03:19:32,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:32,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567348559] [2020-11-28 03:19:32,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:32,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:32,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:32,251 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:32,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:32,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 2 times [2020-11-28 03:19:32,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:32,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870147417] [2020-11-28 03:19:32,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:32,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:32,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:32,270 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:32,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:32,271 INFO L82 PathProgramCache]: Analyzing trace with hash 765959189, now seen corresponding path program 1 times [2020-11-28 03:19:32,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:32,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729809467] [2020-11-28 03:19:32,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:32,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:32,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:32,323 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:32,349 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:32,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:32,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:32,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:32,350 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:19:32,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:32,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:32,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:32,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2020-11-28 03:19:32,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:32,350 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:32,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:32,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:32,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:32,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:32,467 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:32,467 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:32,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:32,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:32,483 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:32,483 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:32,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:32,526 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:32,530 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:32,530 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post10=0} Honda state: {ULTIMATE.start_main_#t~post10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:32,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:32,574 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:32,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:19:32,623 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:32,665 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:19:32,668 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:32,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:32,668 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:32,668 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:32,668 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:19:32,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:32,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:32,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:32,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2020-11-28 03:19:32,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:32,669 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:32,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:32,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:32,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:32,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:32,831 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:32,831 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:32,841 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 [2020-11-28 03:19:32,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:32,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:32,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:32,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:32,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:32,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:32,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:32,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:32,894 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 [2020-11-28 03:19:32,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:32,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:32,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:32,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:32,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:32,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:32,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:32,900 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:32,942 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 [2020-11-28 03:19:32,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:32,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:32,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:32,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:32,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:32,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:32,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:32,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:19:32,956 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:19:32,956 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_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:32,968 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:19:32,969 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:19:32,969 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:19:32,969 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:33,006 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:19:33,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:33,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:19:33,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:33,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:33,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:33,081 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:19:33,081 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-28 03:19:33,108 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 16 states and 21 transitions. Complement of second has 5 states. [2020-11-28 03:19:33,109 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 [2020-11-28 03:19:33,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:19:33,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-28 03:19:33,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-28 03:19:33,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:33,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-28 03:19:33,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:33,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2020-11-28 03:19:33,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:33,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2020-11-28 03:19:33,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:19:33,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2020-11-28 03:19:33,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-28 03:19:33,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-28 03:19:33,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2020-11-28 03:19:33,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:19:33,113 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-11-28 03:19:33,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2020-11-28 03:19:33,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 03:19:33,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 03:19:33,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-11-28 03:19:33,116 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-11-28 03:19:33,116 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-11-28 03:19:33,116 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:19:33,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2020-11-28 03:19:33,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:19:33,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:33,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:33,118 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:33,118 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:19:33,118 INFO L794 eck$LassoCheckResult]: Stem: 194#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(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 192#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 193#L22 assume !!(main_~x~0 > -100); 200#L23 assume !!(main_~x~0 < 200); 201#L24 assume !!(main_~z~0 > 100); 203#L25 assume !!(main_~z~0 < 200); 204#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 199#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 202#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 205#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 195#L29-2 [2020-11-28 03:19:33,118 INFO L796 eck$LassoCheckResult]: Loop: 195#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 196#L29 assume 0 != main_~tmp~0 % 256;main_#t~post10 := main_~x~0;main_~x~0 := 1 + main_#t~post10;havoc main_#t~post10; 195#L29-2 [2020-11-28 03:19:33,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,119 INFO L82 PathProgramCache]: Analyzing trace with hash 765959191, now seen corresponding path program 2 times [2020-11-28 03:19:33,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:33,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394269632] [2020-11-28 03:19:33,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:33,134 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:33,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:33,152 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:33,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 3 times [2020-11-28 03:19:33,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:33,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111866250] [2020-11-28 03:19:33,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:33,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:33,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:33,172 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:33,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1647375930, now seen corresponding path program 2 times [2020-11-28 03:19:33,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:33,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573176284] [2020-11-28 03:19:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:33,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:33,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:33,230 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:33,267 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:33,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:33,268 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:33,268 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:33,268 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:19:33,268 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:33,268 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:33,268 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:33,268 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2020-11-28 03:19:33,268 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:33,269 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:33,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:33,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:33,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:33,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:33,463 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:33,464 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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 [2020-11-28 03:19:33,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:33,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:33,474 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:33,474 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:33,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:33,511 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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 [2020-11-28 03:19:33,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:19:33,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:33,586 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:19:33,588 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:33,588 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:33,588 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:33,588 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:33,588 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:19:33,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:33,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:33,589 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:33,589 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2020-11-28 03:19:33,589 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:33,589 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:33,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:33,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:33,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:33,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:33,761 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:33,762 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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) [2020-11-28 03:19:33,768 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 [2020-11-28 03:19:33,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:33,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:33,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:33,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:33,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:33,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:33,772 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 [2020-11-28 03:19:33,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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) [2020-11-28 03:19:33,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:19:33,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:33,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:33,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:33,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:33,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:33,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:33,822 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 [2020-11-28 03:19:33,827 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:19:33,830 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:19:33,831 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_294e553a-4917-4041-bc9f-8057d264695e/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) [2020-11-28 03:19:33,833 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:19:33,834 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:19:33,834 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:19:33,834 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:33,868 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:19:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:33,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:19:33,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:33,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:33,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:33,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:33,929 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:19:33,929 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-28 03:19:33,963 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 18 states and 25 transitions. Complement of second has 5 states. [2020-11-28 03:19:33,965 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 [2020-11-28 03:19:33,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:19:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-28 03:19:33,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-28 03:19:33,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:33,966 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:19:33,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:33,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:19:33,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:34,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:34,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:34,026 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:19:34,026 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-28 03:19:34,037 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 18 states and 25 transitions. Complement of second has 5 states. [2020-11-28 03:19:34,038 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 [2020-11-28 03:19:34,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:19:34,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-28 03:19:34,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-28 03:19:34,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:34,039 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:19:34,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:34,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:19:34,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:34,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:34,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:34,125 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:19:34,125 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-28 03:19:34,142 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 4 states. [2020-11-28 03:19:34,143 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 [2020-11-28 03:19:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:19:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-11-28 03:19:34,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-28 03:19:34,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:34,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-28 03:19:34,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:34,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-28 03:19:34,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:34,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2020-11-28 03:19:34,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:19:34,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 24 transitions. [2020-11-28 03:19:34,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 03:19:34,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-28 03:19:34,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2020-11-28 03:19:34,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:19:34,147 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-28 03:19:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2020-11-28 03:19:34,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 10. [2020-11-28 03:19:34,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:19:34,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-11-28 03:19:34,149 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-28 03:19:34,149 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-28 03:19:34,149 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:19:34,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2020-11-28 03:19:34,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:19:34,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:34,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:34,150 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:19:34,151 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:19:34,151 INFO L794 eck$LassoCheckResult]: Stem: 406#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(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 404#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 405#L22 assume !!(main_~x~0 > -100); 411#L23 assume !!(main_~x~0 < 200); 412#L24 assume !!(main_~z~0 > 100); 413#L25 assume !!(main_~z~0 < 200); 407#L29-2 [2020-11-28 03:19:34,151 INFO L796 eck$LassoCheckResult]: Loop: 407#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 408#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 407#L29-2 [2020-11-28 03:19:34,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:34,152 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 2 times [2020-11-28 03:19:34,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:34,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31980349] [2020-11-28 03:19:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:34,159 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:34,166 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:34,169 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:34,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:34,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2020-11-28 03:19:34,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:34,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32562247] [2020-11-28 03:19:34,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:34,173 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:34,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:34,177 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:34,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:34,178 INFO L82 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 3 times [2020-11-28 03:19:34,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:34,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906987224] [2020-11-28 03:19:34,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:34,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:34,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:34,206 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:34,256 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:34,256 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:34,256 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:34,256 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:34,256 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:19:34,256 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:34,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:34,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:34,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2020-11-28 03:19:34,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:34,257 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:34,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,369 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:34,369 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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 [2020-11-28 03:19:34,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:34,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:34,383 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:34,384 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post12=0} Honda state: {ULTIMATE.start_main_#t~post12=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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) [2020-11-28 03:19:34,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:34,405 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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 [2020-11-28 03:19:34,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:19:34,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:34,450 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:19:34,451 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:34,451 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:34,451 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:34,451 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:34,451 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:19:34,451 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:34,451 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:34,451 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:34,451 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2020-11-28 03:19:34,451 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:34,452 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:34,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:34,556 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:34,556 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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) [2020-11-28 03:19:34,574 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:34,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:34,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:34,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:34,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:34,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:34,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:34,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:34,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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 [2020-11-28 03:19:34,600 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 [2020-11-28 03:19:34,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:34,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:34,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:34,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:34,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:34,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:34,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:34,605 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_294e553a-4917-4041-bc9f-8057d264695e/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) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:34,627 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 [2020-11-28 03:19:34,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:34,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:34,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:34,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:34,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:34,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:34,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:34,631 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:19:34,634 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-11-28 03:19:34,634 INFO L444 ModelExtractionUtils]: 1 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_294e553a-4917-4041-bc9f-8057d264695e/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) [2020-11-28 03:19:34,636 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:19:34,637 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:19:34,637 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:19:34,637 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:34,671 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:19:34,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:34,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:19:34,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:34,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:34,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:34,748 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:19:34,748 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-11-28 03:19:34,757 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 16 states and 22 transitions. Complement of second has 4 states. [2020-11-28 03:19:34,758 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 [2020-11-28 03:19:34,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:19:34,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-11-28 03:19:34,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 03:19:34,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:34,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-28 03:19:34,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:34,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 03:19:34,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:34,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2020-11-28 03:19:34,760 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:19:34,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-11-28 03:19:34,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:19:34,760 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:19:34,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:19:34,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:19:34,760 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:34,760 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:34,760 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:34,760 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:19:34,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:34,761 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:19:34,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:19:34,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:19:34 BoogieIcfgContainer [2020-11-28 03:19:34,764 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:19:34,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:34,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:34,765 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:34,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:30" (3/4) ... [2020-11-28 03:19:34,767 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:19:34,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:34,769 INFO L168 Benchmark]: Toolchain (without parser) took 5287.75 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 51.8 MB in the beginning and 38.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,769 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 88.1 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:34,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.87 ms. Allocated memory is still 88.1 MB. Free memory was 51.6 MB in the beginning and 65.1 MB in the end (delta: -13.5 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 88.1 MB. Free memory was 65.1 MB in the beginning and 63.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,771 INFO L168 Benchmark]: Boogie Preprocessor took 20.83 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 62.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:34,772 INFO L168 Benchmark]: RCFGBuilder took 620.42 ms. Allocated memory is still 88.1 MB. Free memory was 62.6 MB in the beginning and 50.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,772 INFO L168 Benchmark]: BuchiAutomizer took 4304.31 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 50.4 MB in the beginning and 39.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,773 INFO L168 Benchmark]: Witness Printer took 2.48 ms. Allocated memory is still 130.0 MB. Free memory was 39.9 MB in the beginning and 38.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:34,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 88.1 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.87 ms. Allocated memory is still 88.1 MB. Free memory was 51.6 MB in the beginning and 65.1 MB in the end (delta: -13.5 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 88.1 MB. Free memory was 65.1 MB in the beginning and 63.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.83 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 62.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 620.42 ms. Allocated memory is still 88.1 MB. Free memory was 62.6 MB in the beginning and 50.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4304.31 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 50.4 MB in the beginning and 39.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. * Witness Printer took 2.48 ms. Allocated memory is still 130.0 MB. Free memory was 39.9 MB in the beginning and 38.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 58 SDslu, 11 SDs, 0 SdLazy, 43 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div444 bol100 ite100 ukn100 eq150 hnf48 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...