./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/easy2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/easy2-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/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 64bit --witnessprinter.graph.data.programhash 75d609d205f56e3164255114b6f6d5769a029995 ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:06:36,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:06:36,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:06:36,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:06:36,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:06:36,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:06:36,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:06:36,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:06:36,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:06:36,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:06:36,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:06:36,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:06:36,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:06:36,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:06:36,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:06:36,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:06:36,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:06:36,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:06:36,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:06:36,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:06:36,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:06:36,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:06:36,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:06:36,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:06:36,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:06:36,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:06:36,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:06:36,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:06:36,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:06:36,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:06:36,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:06:36,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:06:36,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:06:36,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:06:36,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:06:36,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:06:36,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:06:36,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:06:36,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:06:36,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:06:36,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:06:36,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-12-01 16:06:36,550 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:06:36,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:06:36,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:06:36,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:06:36,553 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 16:06:36,553 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 16:06:36,554 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 16:06:36,554 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 16:06:36,554 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 16:06:36,555 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 16:06:36,556 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 16:06:36,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:06:36,556 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:06:36,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:06:36,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:06:36,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 16:06:36,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 16:06:36,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 16:06:36,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:06:36,558 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 16:06:36,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:06:36,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 16:06:36,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:06:36,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 16:06:36,560 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 16:06:36,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:06:36,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 16:06:36,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 16:06:36,561 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 16:06:36,565 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 16:06:36,566 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_f41a09d7-c668-49cd-b0b5-3822c4864198/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75d609d205f56e3164255114b6f6d5769a029995 [2020-12-01 16:06:36,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:06:36,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:06:36,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:06:36,857 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:06:36,858 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:06:36,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/easy2-2.c [2020-12-01 16:06:36,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/data/dd2620a97/33337efc2c7b4e368f8ab70f760ff5fa/FLAG2972fe03b [2020-12-01 16:06:37,395 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:06:37,396 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/sv-benchmarks/c/termination-crafted/easy2-2.c [2020-12-01 16:06:37,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/data/dd2620a97/33337efc2c7b4e368f8ab70f760ff5fa/FLAG2972fe03b [2020-12-01 16:06:37,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/data/dd2620a97/33337efc2c7b4e368f8ab70f760ff5fa [2020-12-01 16:06:37,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:06:37,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:06:37,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:06:37,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:06:37,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:06:37,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:37,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b5f94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37, skipping insertion in model container [2020-12-01 16:06:37,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:37,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:06:37,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:06:37,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:06:37,951 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:06:37,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:06:37,977 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:06:37,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37 WrapperNode [2020-12-01 16:06:37,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:06:37,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:06:37,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:06:37,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:06:37,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:37,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:38,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:06:38,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:06:38,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:06:38,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:06:38,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:38,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:38,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:38,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:38,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:38,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:38,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... [2020-12-01 16:06:38,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:06:38,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:06:38,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:06:38,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:06:38,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:06:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:06:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:06:38,233 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:06:38,234 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 16:06:38,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:06:38 BoogieIcfgContainer [2020-12-01 16:06:38,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:06:38,237 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 16:06:38,237 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 16:06:38,240 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 16:06:38,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:06:38,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 04:06:37" (1/3) ... [2020-12-01 16:06:38,242 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66785f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:06:38, skipping insertion in model container [2020-12-01 16:06:38,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:06:38,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:06:37" (2/3) ... [2020-12-01 16:06:38,243 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66785f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:06:38, skipping insertion in model container [2020-12-01 16:06:38,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:06:38,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:06:38" (3/3) ... [2020-12-01 16:06:38,245 INFO L389 chiAutomizerObserver]: Analyzing ICFG easy2-2.c [2020-12-01 16:06:38,291 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 16:06:38,291 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 16:06:38,291 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 16:06:38,292 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 16:06:38,292 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 16:06:38,292 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 16:06:38,292 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 16:06:38,292 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 16:06:38,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-12-01 16:06:38,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-12-01 16:06:38,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:06:38,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:06:38,322 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-12-01 16:06:38,322 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-12-01 16:06:38,322 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 16:06:38,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-12-01 16:06:38,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-12-01 16:06:38,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:06:38,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:06:38,323 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-12-01 16:06:38,323 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-12-01 16:06:38,328 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := 0;main_~y~0 := 0;main_~z~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L20-2true [2020-12-01 16:06:38,328 INFO L796 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~z~0 > 0);main_~x~0 := 1 + main_~x~0;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_~z~0 - 1; 6#L20-2true [2020-12-01 16:06:38,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:06:38,333 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-12-01 16:06:38,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:06:38,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007291601] [2020-12-01 16:06:38,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:06:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:06:38,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:06:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:06:38,410 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:06:38,426 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:06:38,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:06:38,428 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-12-01 16:06:38,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:06:38,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239206425] [2020-12-01 16:06:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:06:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:06:38,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:06:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:06:38,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:06:38,447 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:06:38,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:06:38,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-12-01 16:06:38,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:06:38,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644454962] [2020-12-01 16:06:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:06:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:06:38,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:06:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:06:38,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:06:38,468 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:06:38,529 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:06:38,530 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:06:38,530 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:06:38,530 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:06:38,531 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 16:06:38,531 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:06:38,531 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:06:38,531 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:06:38,531 INFO L133 ssoRankerPreferences]: Filename of dumped script: easy2-2.c_Iteration1_Loop [2020-12-01 16:06:38,531 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:06:38,532 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:06:38,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:38,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:38,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:38,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:38,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:38,675 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:06:38,675 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:06:38,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 16:06:38,739 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/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) [2020-12-01 16:06:38,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 16:06:38,807 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 [2020-12-01 16:06:38,856 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 16:06:38,861 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:06:38,861 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:06:38,861 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:06:38,861 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:06:38,861 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 16:06:38,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:06:38,862 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:06:38,862 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:06:38,862 INFO L133 ssoRankerPreferences]: Filename of dumped script: easy2-2.c_Iteration1_Loop [2020-12-01 16:06:38,862 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:06:38,863 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:06:38,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:38,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:38,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:38,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:38,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:06:39,011 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:06:39,015 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/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) [2020-12-01 16:06:39,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:06:39,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:06:39,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:06:39,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:06:39,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:06:39,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:06:39,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:06:39,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:06:39,062 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 16:06:39,071 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 16:06:39,071 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f41a09d7-c668-49cd-b0b5-3822c4864198/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) [2020-12-01 16:06:39,078 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 16:06:39,078 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 16:06:39,079 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 16:06:39,080 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:06:39,117 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 16:06:39,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:06:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:06:39,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 16:06:39,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:06:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:06:39,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:06:39,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:06:39,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:06:39,202 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-12-01 16:06:39,203 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-12-01 16:06:39,247 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-12-01 16:06:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 16:06:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-12-01 16:06:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-12-01 16:06:39,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-12-01 16:06:39,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:06:39,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-12-01 16:06:39,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:06:39,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-12-01 16:06:39,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:06:39,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-12-01 16:06:39,263 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:06:39,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-12-01 16:06:39,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 16:06:39,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 16:06:39,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 16:06:39,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:06:39,268 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:06:39,268 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:06:39,268 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:06:39,268 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 16:06:39,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 16:06:39,268 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:06:39,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 16:06:39,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 04:06:39 BoogieIcfgContainer [2020-12-01 16:06:39,276 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 16:06:39,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:06:39,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:06:39,277 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:06:39,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:06:38" (3/4) ... [2020-12-01 16:06:39,281 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 16:06:39,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:06:39,283 INFO L168 Benchmark]: Toolchain (without parser) took 1483.49 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.4 MB in the beginning and 51.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:06:39,284 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory was 45.1 MB in the beginning and 45.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:06:39,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.76 ms. Allocated memory is still 86.0 MB. Free memory was 54.2 MB in the beginning and 65.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:06:39,285 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.22 ms. Allocated memory is still 86.0 MB. Free memory was 65.6 MB in the beginning and 64.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:06:39,286 INFO L168 Benchmark]: Boogie Preprocessor took 29.07 ms. Allocated memory is still 86.0 MB. Free memory was 64.2 MB in the beginning and 63.4 MB in the end (delta: 779.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:06:39,287 INFO L168 Benchmark]: RCFGBuilder took 184.73 ms. Allocated memory is still 86.0 MB. Free memory was 63.4 MB in the beginning and 55.8 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:06:39,288 INFO L168 Benchmark]: BuchiAutomizer took 1039.28 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 55.8 MB in the beginning and 51.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:06:39,288 INFO L168 Benchmark]: Witness Printer took 4.43 ms. Allocated memory is still 104.9 MB. Free memory was 51.7 MB in the beginning and 51.2 MB in the end (delta: 483.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:06:39,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory was 45.1 MB in the beginning and 45.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 178.76 ms. Allocated memory is still 86.0 MB. Free memory was 54.2 MB in the beginning and 65.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.22 ms. Allocated memory is still 86.0 MB. Free memory was 65.6 MB in the beginning and 64.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.07 ms. Allocated memory is still 86.0 MB. Free memory was 64.2 MB in the beginning and 63.4 MB in the end (delta: 779.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 184.73 ms. Allocated memory is still 86.0 MB. Free memory was 63.4 MB in the beginning and 55.8 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1039.28 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 55.8 MB in the beginning and 51.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.43 ms. Allocated memory is still 104.9 MB. Free memory was 51.7 MB in the beginning and 51.2 MB in the end (delta: 483.6 kB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function z and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp31 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 59ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...