./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 3dc5764de0a899142e3c264091a9582d1804fe6f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:01:29,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:01:29,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:01:29,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:01:29,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:01:29,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:01:29,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:01:29,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:01:29,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:01:29,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:01:29,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:01:29,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:01:29,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:01:29,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:01:29,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:01:29,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:01:29,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:01:29,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:01:29,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:01:29,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:01:29,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:01:30,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:01:30,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:01:30,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:01:30,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:01:30,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:01:30,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:01:30,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:01:30,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:01:30,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:01:30,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:01:30,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:01:30,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:01:30,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:01:30,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:01:30,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:01:30,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:01:30,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:01:30,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:01:30,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:01:30,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:01:30,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 16:01:30,073 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:01:30,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:01:30,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:01:30,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:01:30,076 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 16:01:30,076 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 16:01:30,076 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 16:01:30,077 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 16:01:30,077 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 16:01:30,077 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 16:01:30,078 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 16:01:30,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:01:30,079 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:01:30,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:01:30,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:01:30,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:01:30,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:01:30,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 16:01:30,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 16:01:30,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 16:01:30,081 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:01:30,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:01:30,081 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 16:01:30,081 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:01:30,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 16:01:30,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:01:30,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 16:01:30,082 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 16:01:30,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:01:30,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 16:01:30,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 16:01:30,085 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 16:01:30,086 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 16:01:30,086 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_85e83b74-4628-4967-966e-4dc31f3182c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dc5764de0a899142e3c264091a9582d1804fe6f [2020-12-01 16:01:30,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:01:30,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:01:30,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:01:30,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:01:30,449 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:01:30,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_02-1.c [2020-12-01 16:01:30,525 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/data/a51ece542/b3f6145453af4edab0d63dde7e68873b/FLAG6dd01fe19 [2020-12-01 16:01:30,969 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:01:30,969 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/sv-benchmarks/c/loops/terminator_02-1.c [2020-12-01 16:01:30,981 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/data/a51ece542/b3f6145453af4edab0d63dde7e68873b/FLAG6dd01fe19 [2020-12-01 16:01:31,364 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/data/a51ece542/b3f6145453af4edab0d63dde7e68873b [2020-12-01 16:01:31,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:01:31,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:01:31,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:01:31,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:01:31,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:01:31,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d16399e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31, skipping insertion in model container [2020-12-01 16:01:31,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:01:31,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:01:31,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:01:31,651 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:01:31,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:01:31,678 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:01:31,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31 WrapperNode [2020-12-01 16:01:31,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:01:31,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:01:31,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:01:31,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:01:31,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:01:31,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:01:31,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:01:31,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:01:31,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... [2020-12-01 16:01:31,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:01:31,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:01:31,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:01:31,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:01:31,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:01:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:01:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:01:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:01:32,088 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:01:32,105 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 16:01:32,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:01:32 BoogieIcfgContainer [2020-12-01 16:01:32,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:01:32,107 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 16:01:32,108 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 16:01:32,111 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 16:01:32,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:01:32,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 04:01:31" (1/3) ... [2020-12-01 16:01:32,113 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a016f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:01:32, skipping insertion in model container [2020-12-01 16:01:32,113 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:01:32,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:31" (2/3) ... [2020-12-01 16:01:32,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a016f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:01:32, skipping insertion in model container [2020-12-01 16:01:32,114 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:01:32,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:01:32" (3/3) ... [2020-12-01 16:01:32,116 INFO L389 chiAutomizerObserver]: Analyzing ICFG terminator_02-1.c [2020-12-01 16:01:32,161 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 16:01:32,161 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 16:01:32,162 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 16:01:32,162 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 16:01:32,162 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 16:01:32,162 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 16:01:32,162 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 16:01:32,163 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 16:01:32,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-12-01 16:01:32,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:01:32,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:01:32,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:01:32,226 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 16:01:32,226 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 16:01:32,227 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 16:01:32,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-12-01 16:01:32,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:01:32,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:01:32,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:01:32,229 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 16:01:32,230 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 16:01:32,236 INFO L794 eck$LassoCheckResult]: Stem: 5#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); 3#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 4#L23-2true [2020-12-01 16:01:32,241 INFO L796 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 7#L23true assume !(0 != main_~tmp~0 % 256);main_#t~post12 := main_~x~0;main_~x~0 := main_#t~post12 - 1;havoc main_#t~post12;main_#t~post13 := main_~z~0;main_~z~0 := main_#t~post13 - 1;havoc main_#t~post13; 4#L23-2true [2020-12-01 16:01:32,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:32,251 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-12-01 16:01:32,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:32,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479014537] [2020-12-01 16:01:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:32,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:32,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:32,425 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:32,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:32,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2020-12-01 16:01:32,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:32,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480429488] [2020-12-01 16:01:32,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:32,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:32,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:32,445 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:32,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:32,447 INFO L82 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2020-12-01 16:01:32,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:32,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239731334] [2020-12-01 16:01:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:32,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:32,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:32,505 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:32,605 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:01:32,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:01:32,606 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:01:32,606 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:01:32,606 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 16:01:32,607 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:32,607 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:01:32,607 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:01:32,607 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2020-12-01 16:01:32,607 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:01:32,608 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:01:32,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:32,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:32,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:32,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:32,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:32,778 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:01:32,779 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:32,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:32,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 16:01:32,806 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 16:01:32,806 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_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:32,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:32,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 16:01:32,865 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 16:01:32,865 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post13=0} Honda state: {ULTIMATE.start_main_#t~post13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:32,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:32,892 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:32,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 16:01:32,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 16:01:32,966 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 16:01:32,966 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=99} Honda state: {ULTIMATE.start_main_~x~0=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [12, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 16:01:33,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:33,007 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:33,024 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 16:01:33,024 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet10=0, ULTIMATE.start_main_~tmp~0=0} Honda state: {ULTIMATE.start_main_#t~nondet10=0, ULTIMATE.start_main_~tmp~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:33,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:33,047 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:33,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 16:01:33,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 16:01:33,125 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 16:01:33,127 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:01:33,127 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:01:33,127 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:01:33,127 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:01:33,128 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 16:01:33,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:33,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:01:33,128 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:01:33,128 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2020-12-01 16:01:33,128 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:01:33,128 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:01:33,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:33,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:33,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:33,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:33,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:33,291 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:01:33,296 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:33,381 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 [2020-12-01 16:01:33,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:33,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:33,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:33,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:33,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:33,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:33,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:01:33,404 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 16:01:33,502 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 [2020-12-01 16:01:33,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:33,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:33,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:33,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:33,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:33,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:33,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:33,526 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:33,560 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 [2020-12-01 16:01:33,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:33,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:33,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:33,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:33,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:33,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:33,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:01:33,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:33,607 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 [2020-12-01 16:01:33,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:33,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:33,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:33,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:33,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:33,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:33,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:01:33,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 16:01:33,623 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-12-01 16:01:33,623 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_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:33,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 16:01:33,670 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 16:01:33,670 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 16:01:33,671 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-12-01 16:01:33,707 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 16:01:33,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:33,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 16:01:33,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:33,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:01:33,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:01:33,824 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 [2020-12-01 16:01:33,825 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2020-12-01 16:01:33,874 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 45 states and 55 transitions. Complement of second has 7 states. [2020-12-01 16:01:33,874 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 [2020-12-01 16:01:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 16:01:33,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-12-01 16:01:33,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 2 letters. Loop has 2 letters. [2020-12-01 16:01:33,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:33,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2020-12-01 16:01:33,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:33,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 2 letters. Loop has 4 letters. [2020-12-01 16:01:33,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:33,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 55 transitions. [2020-12-01 16:01:33,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:01:33,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 9 states and 12 transitions. [2020-12-01 16:01:33,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-12-01 16:01:33,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-12-01 16:01:33,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2020-12-01 16:01:33,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 16:01:33,891 INFO L692 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-12-01 16:01:33,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2020-12-01 16:01:33,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-12-01 16:01:33,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 16:01:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-12-01 16:01:33,915 INFO L715 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-12-01 16:01:33,915 INFO L595 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-12-01 16:01:33,916 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 16:01:33,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2020-12-01 16:01:33,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:01:33,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:01:33,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:01:33,917 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-12-01 16:01:33,917 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 16:01:33,918 INFO L794 eck$LassoCheckResult]: Stem: 102#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); 96#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 97#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 99#L23 [2020-12-01 16:01:33,918 INFO L796 eck$LassoCheckResult]: Loop: 99#L23 assume 0 != main_~tmp~0 % 256;main_#t~post11 := main_~x~0;main_~x~0 := 1 + main_#t~post11;havoc main_#t~post11; 98#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 99#L23 [2020-12-01 16:01:33,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:33,919 INFO L82 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2020-12-01 16:01:33,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:33,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143761709] [2020-12-01 16:01:33,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:33,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:33,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:33,948 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:33,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:33,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2020-12-01 16:01:33,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:33,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734389387] [2020-12-01 16:01:33,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:33,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:33,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:33,961 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:33,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:33,962 INFO L82 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2020-12-01 16:01:33,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:33,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861264152] [2020-12-01 16:01:33,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:33,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:33,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:33,998 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:34,023 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:01:34,023 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:01:34,024 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:01:34,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:01:34,024 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 16:01:34,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:34,024 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:01:34,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:01:34,025 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2020-12-01 16:01:34,025 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:01:34,025 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:01:34,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:34,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:34,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:34,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:34,141 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:01:34,142 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:34,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:34,151 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:34,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 16:01:34,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 16:01:35,208 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 16:01:35,210 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:01:35,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:01:35,210 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:01:35,210 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:01:35,211 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 16:01:35,211 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:35,211 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:01:35,211 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:01:35,211 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2020-12-01 16:01:35,211 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:01:35,211 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:01:35,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:35,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:35,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:35,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:35,328 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:01:35,328 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 16:01:35,337 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 [2020-12-01 16:01:35,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:35,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:35,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:35,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:35,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:35,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:35,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:35,362 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 16:01:35,365 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 16:01:35,365 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_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:35,371 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 16:01:35,371 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 16:01:35,371 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 16:01:35,371 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 197 Supporting invariants [] [2020-12-01 16:01:35,397 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 16:01:35,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:35,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 16:01:35,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:35,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:01:35,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:01:35,491 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 [2020-12-01 16:01:35,491 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-12-01 16:01:35,511 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2020-12-01 16:01:35,512 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 [2020-12-01 16:01:35,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 16:01:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-12-01 16:01:35,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2020-12-01 16:01:35,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:35,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2020-12-01 16:01:35,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:35,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2020-12-01 16:01:35,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:35,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2020-12-01 16:01:35,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:01:35,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2020-12-01 16:01:35,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-12-01 16:01:35,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-12-01 16:01:35,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-12-01 16:01:35,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 16:01:35,516 INFO L692 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-12-01 16:01:35,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-12-01 16:01:35,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2020-12-01 16:01:35,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 16:01:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2020-12-01 16:01:35,517 INFO L715 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-12-01 16:01:35,517 INFO L595 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-12-01 16:01:35,517 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 16:01:35,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2020-12-01 16:01:35,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:01:35,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:01:35,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:01:35,519 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-12-01 16:01:35,519 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 16:01:35,519 INFO L794 eck$LassoCheckResult]: Stem: 159#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); 155#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 156#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 157#L23 assume !(0 != main_~tmp~0 % 256);main_#t~post12 := main_~x~0;main_~x~0 := main_#t~post12 - 1;havoc main_#t~post12;main_#t~post13 := main_~z~0;main_~z~0 := main_#t~post13 - 1;havoc main_#t~post13; 162#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 160#L23 [2020-12-01 16:01:35,519 INFO L796 eck$LassoCheckResult]: Loop: 160#L23 assume 0 != main_~tmp~0 % 256;main_#t~post11 := main_~x~0;main_~x~0 := 1 + main_#t~post11;havoc main_#t~post11; 161#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 160#L23 [2020-12-01 16:01:35,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:35,520 INFO L82 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2020-12-01 16:01:35,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:35,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680397700] [2020-12-01 16:01:35,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:35,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:35,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:35,567 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:35,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:35,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2020-12-01 16:01:35,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:35,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723724839] [2020-12-01 16:01:35,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:35,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:35,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:35,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:35,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:35,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2020-12-01 16:01:35,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:35,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369864523] [2020-12-01 16:01:35,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:35,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:35,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:35,626 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:35,650 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:01:35,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:01:35,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:01:35,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:01:35,650 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 16:01:35,650 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:35,650 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:01:35,650 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:01:35,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2020-12-01 16:01:35,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:01:35,651 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:01:35,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:35,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:35,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:35,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:35,754 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:01:35,754 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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) [2020-12-01 16:01:35,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:35,760 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:35,777 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 16:01:35,777 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post11=0} Honda state: {ULTIMATE.start_main_#t~post11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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) [2020-12-01 16:01:35,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:35,822 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:35,869 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 16:01:35,869 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_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:35,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:35,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 16:01:35,912 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 16:01:35,912 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-19, ULTIMATE.start_main_#t~nondet10=-19} Honda state: {ULTIMATE.start_main_~tmp~0=-19, ULTIMATE.start_main_#t~nondet10=-19} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:35,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:01:35,937 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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 [2020-12-01 16:01:35,960 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 16:01:35,960 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 16:01:36,988 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 16:01:36,995 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:01:36,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:01:36,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:01:36,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:01:36,995 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 16:01:36,995 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:36,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:01:36,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:01:36,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2020-12-01 16:01:36,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:01:36,996 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:01:36,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:37,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:37,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:37,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:37,172 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:01:37,172 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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) [2020-12-01 16:01:37,183 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 [2020-12-01 16:01:37,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:37,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:37,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:37,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:37,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:37,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:37,186 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 [2020-12-01 16:01:37,196 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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) [2020-12-01 16:01:37,232 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 [2020-12-01 16:01:37,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:37,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:37,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:37,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:37,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:37,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:37,235 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 [2020-12-01 16:01:37,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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) [2020-12-01 16:01:37,278 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 [2020-12-01 16:01:37,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:37,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:37,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:37,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:37,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:37,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:37,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:37,304 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e83b74-4628-4967-966e-4dc31f3182c8/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) [2020-12-01 16:01:37,337 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 [2020-12-01 16:01:37,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:37,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:37,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:37,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:37,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:37,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:37,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:37,344 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 16:01:37,346 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 16:01:37,346 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_85e83b74-4628-4967-966e-4dc31f3182c8/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:37,348 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 16:01:37,348 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 16:01:37,348 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 16:01:37,348 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 197 Supporting invariants [] [2020-12-01 16:01:37,366 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 16:01:37,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:37,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 16:01:37,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:37,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:01:37,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:37,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:01:37,449 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 [2020-12-01 16:01:37,449 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-12-01 16:01:37,473 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 5 states. [2020-12-01 16:01:37,474 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 [2020-12-01 16:01:37,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 16:01:37,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-12-01 16:01:37,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2020-12-01 16:01:37,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:37,475 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 16:01:37,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:37,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 16:01:37,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:37,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:01:37,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:01:37,554 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 [2020-12-01 16:01:37,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-12-01 16:01:37,581 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 5 states. [2020-12-01 16:01:37,581 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 [2020-12-01 16:01:37,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 16:01:37,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-12-01 16:01:37,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2020-12-01 16:01:37,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:37,582 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 16:01:37,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:37,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 16:01:37,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:37,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:01:37,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:37,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:01:37,653 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 [2020-12-01 16:01:37,653 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-12-01 16:01:37,677 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2020-12-01 16:01:37,677 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 [2020-12-01 16:01:37,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 16:01:37,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-12-01 16:01:37,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2020-12-01 16:01:37,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:37,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2020-12-01 16:01:37,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:37,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2020-12-01 16:01:37,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:37,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-12-01 16:01:37,681 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:01:37,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-12-01 16:01:37,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 16:01:37,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 16:01:37,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 16:01:37,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:01:37,681 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:01:37,681 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:01:37,681 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:01:37,681 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 16:01:37,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 16:01:37,682 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:01:37,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 16:01:37,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 04:01:37 BoogieIcfgContainer [2020-12-01 16:01:37,688 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 16:01:37,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:01:37,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:01:37,689 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:01:37,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:01:32" (3/4) ... [2020-12-01 16:01:37,691 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 16:01:37,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:01:37,698 INFO L168 Benchmark]: Toolchain (without parser) took 6321.03 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 74.1 MB in the beginning and 51.3 MB in the end (delta: 22.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:01:37,698 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:01:37,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.72 ms. Allocated memory is still 102.8 MB. Free memory was 73.8 MB in the beginning and 79.8 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:01:37,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.62 ms. Allocated memory is still 102.8 MB. Free memory was 79.8 MB in the beginning and 78.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:01:37,701 INFO L168 Benchmark]: Boogie Preprocessor took 20.17 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 77.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:01:37,702 INFO L168 Benchmark]: RCFGBuilder took 372.89 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 66.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:01:37,704 INFO L168 Benchmark]: BuchiAutomizer took 5580.60 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 65.9 MB in the beginning and 52.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:01:37,705 INFO L168 Benchmark]: Witness Printer took 3.21 ms. Allocated memory is still 125.8 MB. Free memory was 52.4 MB in the beginning and 51.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:01:37,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.72 ms. Allocated memory is still 102.8 MB. Free memory was 73.8 MB in the beginning and 79.8 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.62 ms. Allocated memory is still 102.8 MB. Free memory was 79.8 MB in the beginning and 78.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.17 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 77.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 372.89 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 66.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5580.60 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 65.9 MB in the beginning and 52.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.21 ms. Allocated memory is still 125.8 MB. Free memory was 52.4 MB in the beginning and 51.3 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function z and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 197 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 197 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 4.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 27 SDslu, 19 SDs, 0 SdLazy, 35 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div447 bol100 ite100 ukn100 eq150 hnf47 smp83 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 107ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...