./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/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 208a8efcd2fd6b8ea52a20177afd9722587411ce ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:53:30,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:53:30,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:53:30,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:53:30,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:53:30,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:53:30,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:53:30,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:53:30,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:53:30,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:53:30,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:53:30,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:53:30,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:53:30,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:53:30,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:53:30,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:53:30,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:53:30,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:53:30,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:53:30,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:53:30,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:53:30,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:53:30,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:53:30,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:53:30,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:53:30,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:53:30,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:53:30,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:53:30,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:53:30,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:53:30,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:53:30,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:53:30,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:53:30,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:53:30,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:53:30,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:53:30,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:53:30,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:53:30,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:53:30,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:53:30,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:53:30,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 18:53:30,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:53:30,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:53:30,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:53:30,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:53:30,546 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:53:30,546 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:53:30,546 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:53:30,546 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:53:30,547 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:53:30,547 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:53:30,547 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:53:30,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:53:30,548 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:53:30,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:53:30,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:53:30,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:53:30,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:53:30,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:53:30,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:53:30,550 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:53:30,550 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:53:30,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:53:30,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:53:30,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:53:30,551 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:53:30,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:53:30,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:53:30,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:53:30,552 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:53:30,554 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:53:30,554 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_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 208a8efcd2fd6b8ea52a20177afd9722587411ce [2020-11-29 18:53:30,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:53:30,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:53:30,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:53:30,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:53:30,933 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:53:30,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2020-11-29 18:53:31,041 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/data/5bbb54c7e/66660122056340d78100c8cc55669c9e/FLAG28c281357 [2020-11-29 18:53:31,589 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:53:31,589 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2020-11-29 18:53:31,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/data/5bbb54c7e/66660122056340d78100c8cc55669c9e/FLAG28c281357 [2020-11-29 18:53:31,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/data/5bbb54c7e/66660122056340d78100c8cc55669c9e [2020-11-29 18:53:32,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:53:32,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:53:32,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:53:32,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:53:32,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:53:32,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b0fb85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32, skipping insertion in model container [2020-11-29 18:53:32,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:53:32,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:53:32,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:53:32,214 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:53:32,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:53:32,261 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:53:32,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32 WrapperNode [2020-11-29 18:53:32,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:53:32,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:53:32,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:53:32,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:53:32,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:53:32,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:53:32,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:53:32,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:53:32,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... [2020-11-29 18:53:32,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:53:32,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:53:32,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:53:32,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:53:32,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:32,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:53:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:53:32,602 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:53:32,602 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 18:53:32,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:32 BoogieIcfgContainer [2020-11-29 18:53:32,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:53:32,605 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:53:32,605 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:53:32,610 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:53:32,611 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:53:32,611 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:53:32" (1/3) ... [2020-11-29 18:53:32,613 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3dbfbcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:53:32, skipping insertion in model container [2020-11-29 18:53:32,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:53:32,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:32" (2/3) ... [2020-11-29 18:53:32,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3dbfbcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:53:32, skipping insertion in model container [2020-11-29 18:53:32,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:53:32,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:32" (3/3) ... [2020-11-29 18:53:32,616 INFO L373 chiAutomizerObserver]: Analyzing ICFG 4NestedWith3Variables-1.c [2020-11-29 18:53:32,674 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:53:32,674 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:53:32,674 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:53:32,674 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:53:32,674 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:53:32,675 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:53:32,675 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:53:32,675 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:53:32,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-29 18:53:32,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:53:32,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:32,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:32,720 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 18:53:32,720 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 18:53:32,720 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:53:32,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-29 18:53:32,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:53:32,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:32,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:32,723 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 18:53:32,723 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 18:53:32,748 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~a~0, main_~b~0, main_~q~0, main_~olda~0;havoc main_~a~0;havoc main_~b~0;havoc main_~q~0;havoc main_~olda~0;main_~q~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~a~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L23true assume !!(-524287 <= main_~q~0 && main_~q~0 <= 524287); 8#L24true assume !!(-524287 <= main_~a~0 && main_~a~0 <= 524287); 11#L25true assume !!(-524287 <= main_~b~0 && main_~b~0 <= 524287); 9#L26-2true [2020-11-29 18:53:32,749 INFO L796 eck$LassoCheckResult]: Loop: 9#L26-2true assume !!(main_~q~0 > 0);main_~q~0 := main_~q~0 + main_~a~0 - 1;main_~olda~0 := main_~a~0;main_~a~0 := 3 * main_~olda~0 - 4 * main_~b~0;main_~b~0 := 4 * main_~olda~0 + 3 * main_~b~0; 9#L26-2true [2020-11-29 18:53:32,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:32,772 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2020-11-29 18:53:32,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:32,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568973283] [2020-11-29 18:53:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:32,895 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:32,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:32,934 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:32,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:32,936 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-11-29 18:53:32,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:32,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825044804] [2020-11-29 18:53:32,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:32,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:32,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:32,980 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:32,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:32,988 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2020-11-29 18:53:32,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:32,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897633777] [2020-11-29 18:53:32,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:33,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:33,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:33,068 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:33,214 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:53:33,216 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:53:33,216 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:53:33,217 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:53:33,217 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:53:33,217 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:33,217 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:53:33,218 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:53:33,218 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2020-11-29 18:53:33,218 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:53:33,218 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:53:33,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:33,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:33,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:33,473 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:53:33,476 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:33,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:53:33,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:53:33,501 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:53:33,501 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:33,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:53:33,546 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:53:33,550 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:53:33,551 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:33,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:53:33,583 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:33,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:53:33,649 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:45,711 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-11-29 18:53:45,714 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:53:45,714 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:53:45,715 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:53:45,715 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:53:45,715 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:53:45,715 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:45,715 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:53:45,715 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:53:45,715 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2020-11-29 18:53:45,715 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:53:45,715 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:53:45,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:45,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:45,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:45,910 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:53:45,920 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:45,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:45,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:45,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:45,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:45,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:45,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:45,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:45,956 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:46,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:46,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:46,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:46,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:46,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:46,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:53:46,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:53:46,117 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/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) [2020-11-29 18:53:46,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,138 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:53:46,161 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 18:53:46,162 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:46,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,234 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:53:46,239 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 18:53:46,240 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/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 [2020-11-29 18:53:46,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:46,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,298 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:53:46,307 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 18:53:46,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:53:46,321 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:53:46,364 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:46,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,382 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:53:46,395 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 18:53:46,397 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,455 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:53:46,461 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 18:53:46,462 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 18:53:46,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:46,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:46,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,547 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:53:46,554 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:53:46,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:53:46,605 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:46,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,621 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:53:46,636 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 18:53:46,639 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,653 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,689 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:53:46,696 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 18:53:46,696 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2020-11-29 18:53:46,705 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:46,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:46,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:46,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:46,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:46,757 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:53:46,766 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 18:53:46,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:53:46,778 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:53:46,805 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-29 18:53:46,806 INFO L444 ModelExtractionUtils]: 8 out of 21 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8fef4-c8f0-4adc-ab0d-db2244f151d0/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:46,815 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:53:46,816 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:53:46,816 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:53:46,817 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 4-nested ranking function: f0 = -16*ULTIMATE.start_main_~b~0 + 80*ULTIMATE.start_main_~q~0 - 8*ULTIMATE.start_main_~a~0 f1 = -4*ULTIMATE.start_main_~b~0 + 4*ULTIMATE.start_main_~q~0 + 2*ULTIMATE.start_main_~a~0 f2 = 1*ULTIMATE.start_main_~a~0 f3 = 1*ULTIMATE.start_main_~q~0 Supporting invariants [] [2020-11-29 18:53:46,843 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:53:46,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:46,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:53:46,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:46,928 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 18:53:46,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:53:46,947 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 [2020-11-29 18:53:46,949 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2020-11-29 18:53:47,004 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2020-11-29 18:53:47,006 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 [2020-11-29 18:53:47,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 18:53:47,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-29 18:53:47,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2020-11-29 18:53:47,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:47,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2020-11-29 18:53:47,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:47,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-29 18:53:47,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:47,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2020-11-29 18:53:47,017 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:53:47,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-11-29 18:53:47,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:53:47,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:53:47,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:53:47,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:53:47,021 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:53:47,021 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:53:47,022 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:53:47,022 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:53:47,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:53:47,022 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:53:47,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 18:53:47,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:53:47 BoogieIcfgContainer [2020-11-29 18:53:47,027 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:53:47,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:53:47,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:53:47,028 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:53:47,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:32" (3/4) ... [2020-11-29 18:53:47,033 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:53:47,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:53:47,035 INFO L168 Benchmark]: Toolchain (without parser) took 15027.18 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 39.1 MB in the end (delta: 29.8 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:47,036 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 77.6 MB. Free memory was 39.6 MB in the beginning and 39.6 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:47,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.25 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 75.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:47,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.62 ms. Allocated memory is still 96.5 MB. Free memory was 75.0 MB in the beginning and 73.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:47,038 INFO L168 Benchmark]: Boogie Preprocessor took 30.90 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 73.1 MB in the end (delta: 749.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:47,039 INFO L168 Benchmark]: RCFGBuilder took 264.22 ms. Allocated memory is still 96.5 MB. Free memory was 72.9 MB in the beginning and 64.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:47,040 INFO L168 Benchmark]: BuchiAutomizer took 14422.30 ms. Allocated memory is still 96.5 MB. Free memory was 64.1 MB in the beginning and 39.1 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:47,040 INFO L168 Benchmark]: Witness Printer took 4.96 ms. Allocated memory is still 96.5 MB. Free memory is still 39.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:47,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 77.6 MB. Free memory was 39.6 MB in the beginning and 39.6 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.25 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 75.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.62 ms. Allocated memory is still 96.5 MB. Free memory was 75.0 MB in the beginning and 73.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.90 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 73.1 MB in the end (delta: 749.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 264.22 ms. Allocated memory is still 96.5 MB. Free memory was 72.9 MB in the beginning and 64.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14422.30 ms. Allocated memory is still 96.5 MB. Free memory was 64.1 MB in the beginning and 39.1 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.96 ms. Allocated memory is still 96.5 MB. Free memory is still 39.1 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 4-nested ranking function (if -16 * b + 80 * q + -8 * a > 0 then 3 else (if -4 * b + 4 * q + 2 * a > 0 then 2 else (if a > 0 then 1 else 0))), (if -16 * b + 80 * q + -8 * a > 0 then -16 * b + 80 * q + -8 * a else (if -4 * b + 4 * q + 2 * a > 0 then -4 * b + 4 * q + 2 * a else (if a > 0 then a else q))) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 14.1s. 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: 12 SDtfs, 12 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: inital32 mio100 ax137 hnf102 lsp73 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq196 hnf93 smp100 dnf100 smp100 tf103 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 5 MotzkinApplications: 15 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...