./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c39fd0351744516d27a824f9d04afb4690ded14c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:19:41,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:19:41,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:19:41,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:19:41,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:19:41,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:19:41,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:19:41,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:19:41,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:19:41,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:19:41,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:19:41,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:19:41,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:19:42,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:19:42,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:19:42,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:19:42,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:19:42,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:19:42,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:19:42,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:19:42,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:19:42,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:19:42,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:19:42,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:19:42,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:19:42,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:19:42,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:19:42,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:19:42,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:19:42,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:19:42,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:19:42,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:19:42,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:19:42,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:19:42,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:19:42,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:19:42,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:19:42,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:19:42,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:19:42,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:19:42,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:19:42,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:19:42,141 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:19:42,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:19:42,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:19:42,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:19:42,145 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:19:42,145 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:19:42,145 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:19:42,146 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:19:42,146 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:19:42,146 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:19:42,148 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:19:42,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:19:42,149 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:19:42,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:19:42,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:19:42,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:19:42,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:19:42,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:19:42,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:19:42,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:19:42,151 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:19:42,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:19:42,151 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:19:42,152 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:19:42,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:19:42,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:19:42,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:19:42,153 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:19:42,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:19:42,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:19:42,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:19:42,156 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:19:42,158 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:19:42,159 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_d8d601f2-9f86-4fb9-a546-3736275ae126/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c39fd0351744516d27a824f9d04afb4690ded14c [2020-11-30 00:19:42,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:19:42,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:19:42,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:19:42,587 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:19:42,588 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:19:42,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_02-2.c [2020-11-30 00:19:42,687 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/data/38d9c06d3/a436698f6f194a3f9a528f85dc704728/FLAG6784d3d6f [2020-11-30 00:19:43,326 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:19:43,328 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/sv-benchmarks/c/loops/terminator_02-2.c [2020-11-30 00:19:43,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/data/38d9c06d3/a436698f6f194a3f9a528f85dc704728/FLAG6784d3d6f [2020-11-30 00:19:43,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/data/38d9c06d3/a436698f6f194a3f9a528f85dc704728 [2020-11-30 00:19:43,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:19:43,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:19:43,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:19:43,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:19:43,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:19:43,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:19:43" (1/1) ... [2020-11-30 00:19:43,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee2a313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:43, skipping insertion in model container [2020-11-30 00:19:43,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:19:43" (1/1) ... [2020-11-30 00:19:43,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:19:43,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:19:43,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:19:43,957 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:19:43,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:19:44,021 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:19:44,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44 WrapperNode [2020-11-30 00:19:44,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:19:44,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:19:44,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:19:44,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:19:44,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... [2020-11-30 00:19:44,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... [2020-11-30 00:19:44,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:19:44,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:19:44,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:19:44,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:19:44,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... [2020-11-30 00:19:44,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... [2020-11-30 00:19:44,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... [2020-11-30 00:19:44,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... [2020-11-30 00:19:44,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... [2020-11-30 00:19:44,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... [2020-11-30 00:19:44,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... [2020-11-30 00:19:44,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:19:44,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:19:44,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:19:44,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:19:44,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:19:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:19:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:19:44,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:19:44,622 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:19:44,624 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:19:44,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:44 BoogieIcfgContainer [2020-11-30 00:19:44,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:19:44,628 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:19:44,629 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:19:44,633 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:19:44,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:19:44,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:19:43" (1/3) ... [2020-11-30 00:19:44,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d2f1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:19:44, skipping insertion in model container [2020-11-30 00:19:44,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:19:44,636 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:44" (2/3) ... [2020-11-30 00:19:44,637 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d2f1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:19:44, skipping insertion in model container [2020-11-30 00:19:44,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:19:44,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:44" (3/3) ... [2020-11-30 00:19:44,640 INFO L373 chiAutomizerObserver]: Analyzing ICFG terminator_02-2.c [2020-11-30 00:19:44,727 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:19:44,728 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:19:44,728 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:19:44,728 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:19:44,729 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:19:44,729 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:19:44,729 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:19:44,729 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:19:44,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-30 00:19:44,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:44,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:19:44,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:19:44,786 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:19:44,786 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:19:44,787 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:19:44,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-30 00:19:44,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:44,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:19:44,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:19:44,794 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:19:44,794 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:19:44,804 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 7#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 11#L22true assume !!(main_~x~0 > -100); 12#L23true assume !!(main_~x~0 < 200); 14#L24true assume !!(main_~z~0 > 100); 18#L25true assume !!(main_~z~0 < 200); 3#L29-2true [2020-11-30 00:19:44,804 INFO L796 eck$LassoCheckResult]: Loop: 3#L29-2true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 5#L29true assume 0 != main_~tmp~0 % 256;main_#t~post10 := main_~x~0;main_~x~0 := 1 + main_#t~post10;havoc main_#t~post10; 3#L29-2true [2020-11-30 00:19:44,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:44,814 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2020-11-30 00:19:44,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:44,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110070928] [2020-11-30 00:19:44,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:44,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:45,023 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:45,056 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:45,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:45,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 1 times [2020-11-30 00:19:45,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:45,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385178429] [2020-11-30 00:19:45,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:45,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:45,099 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:45,105 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:45,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:45,116 INFO L82 PathProgramCache]: Analyzing trace with hash 179567792, now seen corresponding path program 1 times [2020-11-30 00:19:45,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:45,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939364240] [2020-11-30 00:19:45,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:45,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:45,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:45,201 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:45,306 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:45,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:45,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:45,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:45,308 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:19:45,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:45,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:45,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:45,309 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2020-11-30 00:19:45,309 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:45,309 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:45,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:45,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:45,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:45,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:45,588 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:45,588 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:45,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:45,598 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:45,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:45,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet9=253, ULTIMATE.start_main_~tmp~0=253} Honda state: {ULTIMATE.start_main_#t~nondet9=253, ULTIMATE.start_main_~tmp~0=253} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:45,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:45,680 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:45,686 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:45,686 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post10=0} Honda state: {ULTIMATE.start_main_#t~post10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:45,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:45,742 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:45,750 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:45,750 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_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:45,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:45,817 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:45,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:19:45,880 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 [2020-11-30 00:19:45,943 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:19:45,946 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:45,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:45,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:45,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:45,946 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:19:45,947 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:45,947 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:45,947 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:45,947 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2020-11-30 00:19:45,947 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:45,947 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:45,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:45,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:45,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:45,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:46,262 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:46,267 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:46,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:46,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:46,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:46,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:46,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:46,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:46,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:46,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:46,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:46,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:46,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:46,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:46,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:46,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:46,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:46,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:46,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:46,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/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) [2020-11-30 00:19:46,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:46,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:46,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:46,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:46,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:46,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:46,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:46,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:19:46,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:46,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:46,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:46,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:46,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:46,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:46,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:46,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:46,540 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 [2020-11-30 00:19:46,546 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:19:46,555 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:19:46,555 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_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:46,562 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:19:46,562 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:19:46,562 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:19:46,563 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2020-11-30 00:19:46,609 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:19:46,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:46,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:19:46,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:46,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:19:46,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:46,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:46,794 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:19:46,795 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-11-30 00:19:46,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 45 states and 58 transitions. Complement of second has 8 states. [2020-11-30 00:19:46,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:19:46,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:19:46,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-11-30 00:19:46,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-30 00:19:46,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:46,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 00:19:46,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:46,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-30 00:19:46,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:46,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2020-11-30 00:19:46,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:46,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 12 states and 15 transitions. [2020-11-30 00:19:46,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-30 00:19:46,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-30 00:19:46,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-11-30 00:19:46,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:19:46,870 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-11-30 00:19:46,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-11-30 00:19:46,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-30 00:19:46,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-30 00:19:46,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-11-30 00:19:46,900 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-11-30 00:19:46,900 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-11-30 00:19:46,900 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:19:46,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2020-11-30 00:19:46,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:46,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:19:46,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:19:46,902 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:46,902 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:19:46,902 INFO L794 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 113#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 114#L22 assume !!(main_~x~0 > -100); 121#L23 assume !!(main_~x~0 < 200); 122#L24 assume !!(main_~z~0 > 100); 123#L25 assume !!(main_~z~0 < 200); 124#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 120#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 116#L29-2 [2020-11-30 00:19:46,902 INFO L796 eck$LassoCheckResult]: Loop: 116#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 117#L29 assume 0 != main_~tmp~0 % 256;main_#t~post10 := main_~x~0;main_~x~0 := 1 + main_#t~post10;havoc main_#t~post10; 116#L29-2 [2020-11-30 00:19:46,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:46,903 INFO L82 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 1 times [2020-11-30 00:19:46,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:46,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736199201] [2020-11-30 00:19:46,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:46,923 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:46,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:46,948 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:46,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:46,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 2 times [2020-11-30 00:19:46,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:46,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054161486] [2020-11-30 00:19:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:46,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:46,960 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:46,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:46,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:46,963 INFO L82 PathProgramCache]: Analyzing trace with hash 765959189, now seen corresponding path program 1 times [2020-11-30 00:19:46,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:46,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573905674] [2020-11-30 00:19:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:46,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:47,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:47,009 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:47,049 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:47,050 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:47,050 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:47,050 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:47,050 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:19:47,050 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:47,050 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:47,050 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:47,051 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2020-11-30 00:19:47,051 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:47,051 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:47,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:47,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:47,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:47,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:47,181 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:47,181 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:47,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:47,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:19:47,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:47,231 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_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:47,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:47,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:19:47,270 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:47,270 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post10=0} Honda state: {ULTIMATE.start_main_#t~post10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:47,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:47,301 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:47,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:19:47,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:19:47,390 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:19:47,392 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:47,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:47,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:47,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:47,392 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:19:47,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:47,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:47,393 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:47,393 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2020-11-30 00:19:47,393 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:47,393 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:47,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:47,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:47,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:47,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:47,634 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:47,634 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:47,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:47,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:47,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:47,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:47,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:47,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:47,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:47,688 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 [2020-11-30 00:19:47,692 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:47,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:47,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:47,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:47,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:47,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:47,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:47,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:47,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:19:47,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:47,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:47,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:47,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:47,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:47,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:47,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:47,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:47,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:19:47,763 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:19:47,772 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:19:47,772 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_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:47,780 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:19:47,780 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:19:47,780 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:19:47,780 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:47,825 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:19:47,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:47,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:19:47,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:47,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:19:47,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:47,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:47,951 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:19:47,952 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-30 00:19:47,977 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 16 states and 21 transitions. Complement of second has 5 states. [2020-11-30 00:19:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:19:47,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:19:47,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-30 00:19:47,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 00:19:47,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:47,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 00:19:47,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:47,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2020-11-30 00:19:47,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:47,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2020-11-30 00:19:47,982 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:47,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2020-11-30 00:19:47,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-30 00:19:47,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-30 00:19:47,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2020-11-30 00:19:47,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:19:47,986 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-11-30 00:19:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2020-11-30 00:19:47,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-30 00:19:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 00:19:47,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-11-30 00:19:47,989 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-11-30 00:19:47,989 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-11-30 00:19:47,989 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:19:47,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2020-11-30 00:19:47,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:47,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:19:47,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:19:47,991 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:47,991 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:19:47,992 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 192#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 193#L22 assume !!(main_~x~0 > -100); 200#L23 assume !!(main_~x~0 < 200); 201#L24 assume !!(main_~z~0 > 100); 203#L25 assume !!(main_~z~0 < 200); 204#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 199#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 202#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 205#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 195#L29-2 [2020-11-30 00:19:47,992 INFO L796 eck$LassoCheckResult]: Loop: 195#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 196#L29 assume 0 != main_~tmp~0 % 256;main_#t~post10 := main_~x~0;main_~x~0 := 1 + main_#t~post10;havoc main_#t~post10; 195#L29-2 [2020-11-30 00:19:47,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:47,992 INFO L82 PathProgramCache]: Analyzing trace with hash 765959191, now seen corresponding path program 2 times [2020-11-30 00:19:47,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:47,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699919451] [2020-11-30 00:19:47,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:48,033 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:48,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:48,071 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:48,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:48,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 3 times [2020-11-30 00:19:48,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:48,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489993575] [2020-11-30 00:19:48,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:48,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:48,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:48,091 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:48,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:48,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1647375930, now seen corresponding path program 2 times [2020-11-30 00:19:48,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:48,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458074538] [2020-11-30 00:19:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:48,125 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:48,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:48,161 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:48,202 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:48,203 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:48,203 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:48,203 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:48,203 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:19:48,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:48,203 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:48,203 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:48,203 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2020-11-30 00:19:48,203 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:48,203 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:48,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:48,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:48,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:48,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:48,368 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:48,369 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/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) [2020-11-30 00:19:48,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:48,385 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:48,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:48,390 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_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:48,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:48,445 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/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) [2020-11-30 00:19:48,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:19:48,504 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:48,554 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:19:48,557 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:48,557 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:48,557 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:48,557 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:48,557 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:19:48,557 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:48,558 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:48,558 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:48,558 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2020-11-30 00:19:48,558 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:48,558 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:48,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:48,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:48,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:48,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:48,695 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:48,695 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:48,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:48,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:48,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:48,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:48,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:48,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:48,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:48,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:48,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:48,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:48,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:48,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:48,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:48,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:48,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:48,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:48,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:48,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:19:48,793 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:19:48,793 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_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:48,803 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:19:48,803 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:19:48,803 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:19:48,803 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:48,847 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:19:48,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:48,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:19:48,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:48,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:19:48,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:49,061 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:19:49,061 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-30 00:19:49,082 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 18 states and 25 transitions. Complement of second has 5 states. [2020-11-30 00:19:49,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:19:49,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:19:49,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-30 00:19:49,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 00:19:49,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:49,084 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:19:49,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:49,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:19:49,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:49,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:19:49,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:49,165 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:19:49,166 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-30 00:19:49,197 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 18 states and 25 transitions. Complement of second has 5 states. [2020-11-30 00:19:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:19:49,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:19:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-30 00:19:49,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 00:19:49,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:49,200 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:19:49,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:49,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:19:49,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:49,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:19:49,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:49,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:49,307 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:19:49,307 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-30 00:19:49,334 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 4 states. [2020-11-30 00:19:49,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:19:49,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:19:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-11-30 00:19:49,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 00:19:49,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:49,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-30 00:19:49,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:49,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-30 00:19:49,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:49,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2020-11-30 00:19:49,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:19:49,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 24 transitions. [2020-11-30 00:19:49,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-30 00:19:49,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-30 00:19:49,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2020-11-30 00:19:49,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:19:49,347 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-30 00:19:49,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2020-11-30 00:19:49,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 10. [2020-11-30 00:19:49,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-30 00:19:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-11-30 00:19:49,350 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-30 00:19:49,350 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-30 00:19:49,351 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:19:49,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2020-11-30 00:19:49,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:19:49,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:19:49,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:19:49,354 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:19:49,354 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:19:49,355 INFO L794 eck$LassoCheckResult]: Stem: 406#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 404#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~post11, main_#t~post12, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~z~0 := main_#t~nondet8;havoc main_#t~nondet8; 405#L22 assume !!(main_~x~0 > -100); 411#L23 assume !!(main_~x~0 < 200); 412#L24 assume !!(main_~z~0 > 100); 413#L25 assume !!(main_~z~0 < 200); 407#L29-2 [2020-11-30 00:19:49,355 INFO L796 eck$LassoCheckResult]: Loop: 407#L29-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet9;havoc main_#t~nondet9; 408#L29 assume !(0 != main_~tmp~0 % 256);main_#t~post11 := main_~x~0;main_~x~0 := main_#t~post11 - 1;havoc main_#t~post11;main_#t~post12 := main_~z~0;main_~z~0 := main_#t~post12 - 1;havoc main_#t~post12; 407#L29-2 [2020-11-30 00:19:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:49,356 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 2 times [2020-11-30 00:19:49,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:49,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672660030] [2020-11-30 00:19:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:49,376 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:49,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:49,397 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:49,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:49,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2020-11-30 00:19:49,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:49,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573443675] [2020-11-30 00:19:49,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:49,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:49,407 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:49,409 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:49,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:49,410 INFO L82 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 3 times [2020-11-30 00:19:49,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:49,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453287412] [2020-11-30 00:19:49,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:49,422 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:49,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:49,436 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:49,502 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:49,502 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:49,502 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:49,502 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:49,502 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:19:49,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:49,503 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:49,503 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:49,503 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2020-11-30 00:19:49,503 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:49,503 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:49,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,684 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:49,685 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:49,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:49,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:19:49,699 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:49,699 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_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:49,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:49,747 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:49,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:19:49,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:19:49,815 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:19:49,817 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:49,817 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:49,817 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:49,817 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:49,817 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:19:49,817 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:49,817 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:49,817 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:49,817 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2020-11-30 00:19:49,818 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:49,818 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:49,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:49,992 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:49,992 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:49,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:49,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:49,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:49,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:49,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:49,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:49,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:49,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:50,002 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:50,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:50,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:50,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:50,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:50,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:50,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:50,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:50,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:50,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:50,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:19:50,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:50,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:50,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:50,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:50,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:50,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:50,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:19:50,106 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:19:50,111 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-11-30 00:19:50,111 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_d8d601f2-9f86-4fb9-a546-3736275ae126/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:50,116 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:19:50,116 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:19:50,117 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:19:50,117 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:50,145 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:19:50,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:50,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:19:50,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:50,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:19:50,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:50,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:50,258 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:19:50,258 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-11-30 00:19:50,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 16 states and 22 transitions. Complement of second has 4 states. [2020-11-30 00:19:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:19:50,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:19:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-11-30 00:19:50,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-30 00:19:50,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:50,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 00:19:50,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:50,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-30 00:19:50,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:50,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2020-11-30 00:19:50,277 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:19:50,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-11-30 00:19:50,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:19:50,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:19:50,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:19:50,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:19:50,277 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:19:50,278 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:19:50,278 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:19:50,278 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:19:50,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:19:50,278 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:19:50,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:19:50,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:19:50 BoogieIcfgContainer [2020-11-30 00:19:50,283 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:19:50,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:19:50,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:19:50,286 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:19:50,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:44" (3/4) ... [2020-11-30 00:19:50,291 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:19:50,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:19:50,294 INFO L168 Benchmark]: Toolchain (without parser) took 6620.15 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 113.9 MB in the beginning and 73.7 MB in the end (delta: 40.2 MB). Peak memory consumption was 83.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:19:50,294 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:19:50,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.99 ms. Allocated memory is still 140.5 MB. Free memory was 113.9 MB in the beginning and 117.8 MB in the end (delta: -3.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:19:50,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.69 ms. Allocated memory is still 140.5 MB. Free memory was 117.8 MB in the beginning and 116.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:19:50,304 INFO L168 Benchmark]: Boogie Preprocessor took 42.44 ms. Allocated memory is still 140.5 MB. Free memory was 116.5 MB in the beginning and 115.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:19:50,306 INFO L168 Benchmark]: RCFGBuilder took 503.77 ms. Allocated memory is still 140.5 MB. Free memory was 115.2 MB in the beginning and 103.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:19:50,307 INFO L168 Benchmark]: BuchiAutomizer took 5655.04 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 103.3 MB in the beginning and 73.7 MB in the end (delta: 29.6 MB). Peak memory consumption was 73.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:19:50,307 INFO L168 Benchmark]: Witness Printer took 7.18 ms. Allocated memory is still 182.5 MB. Free memory is still 73.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:19:50,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.99 ms. Allocated memory is still 140.5 MB. Free memory was 113.9 MB in the beginning and 117.8 MB in the end (delta: -3.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.69 ms. Allocated memory is still 140.5 MB. Free memory was 117.8 MB in the beginning and 116.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.44 ms. Allocated memory is still 140.5 MB. Free memory was 116.5 MB in the beginning and 115.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 503.77 ms. Allocated memory is still 140.5 MB. Free memory was 115.2 MB in the beginning and 103.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5655.04 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 103.3 MB in the beginning and 73.7 MB in the end (delta: 29.6 MB). Peak memory consumption was 73.9 MB. Max. memory is 16.1 GB. * Witness Printer took 7.18 ms. Allocated memory is still 182.5 MB. Free memory is still 73.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 58 SDslu, 11 SDs, 0 SdLazy, 43 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div444 bol100 ite100 ukn100 eq150 hnf48 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...