./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sequence.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_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sequence.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/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 a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:17:29,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:17:29,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:17:29,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:17:29,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:17:29,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:17:29,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:17:29,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:17:29,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:17:29,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:17:29,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:17:29,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:17:29,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:17:29,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:17:29,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:17:29,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:17:29,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:17:29,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:17:29,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:17:29,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:17:29,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:17:29,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:17:29,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:17:29,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:17:29,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:17:29,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:17:29,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:17:29,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:17:29,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:17:29,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:17:29,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:17:29,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:17:29,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:17:29,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:17:29,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:17:29,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:17:29,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:17:29,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:17:29,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:17:29,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:17:29,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:17:29,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 22:17:29,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:17:29,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:17:29,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:17:29,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:17:29,646 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:17:29,646 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:17:29,647 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:17:29,647 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:17:29,647 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:17:29,647 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:17:29,648 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:17:29,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:17:29,649 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:17:29,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:17:29,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:17:29,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:17:29,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:17:29,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:17:29,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:17:29,650 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:17:29,651 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:17:29,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:17:29,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:17:29,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:17:29,651 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:17:29,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:17:29,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:17:29,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:17:29,652 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:17:29,655 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:17:29,655 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_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe [2020-11-29 22:17:29,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:17:30,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:17:30,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:17:30,017 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:17:30,023 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:17:30,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/Sequence.c [2020-11-29 22:17:30,127 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/data/54e77adc4/3454240b138d4b9fa0a961181d9973f9/FLAG810765a26 [2020-11-29 22:17:30,544 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:17:30,545 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/sv-benchmarks/c/termination-restricted-15/Sequence.c [2020-11-29 22:17:30,555 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/data/54e77adc4/3454240b138d4b9fa0a961181d9973f9/FLAG810765a26 [2020-11-29 22:17:30,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/data/54e77adc4/3454240b138d4b9fa0a961181d9973f9 [2020-11-29 22:17:30,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:17:30,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:17:30,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:17:30,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:17:30,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:17:30,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:17:30" (1/1) ... [2020-11-29 22:17:30,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b308257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:30, skipping insertion in model container [2020-11-29 22:17:30,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:17:30" (1/1) ... [2020-11-29 22:17:30,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:17:31,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:17:31,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:17:31,220 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:17:31,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:17:31,288 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:17:31,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31 WrapperNode [2020-11-29 22:17:31,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:17:31,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:17:31,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:17:31,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:17:31,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... [2020-11-29 22:17:31,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... [2020-11-29 22:17:31,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:17:31,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:17:31,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:17:31,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:17:31,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... [2020-11-29 22:17:31,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... [2020-11-29 22:17:31,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... [2020-11-29 22:17:31,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... [2020-11-29 22:17:31,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... [2020-11-29 22:17:31,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... [2020-11-29 22:17:31,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... [2020-11-29 22:17:31,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:17:31,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:17:31,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:17:31,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:17:31,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/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 22:17:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:17:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:17:31,578 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:17:31,578 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 22:17:31,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:17:31 BoogieIcfgContainer [2020-11-29 22:17:31,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:17:31,581 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:17:31,582 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:17:31,586 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:17:31,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:17:31,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:17:30" (1/3) ... [2020-11-29 22:17:31,588 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e79ed6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:17:31, skipping insertion in model container [2020-11-29 22:17:31,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:17:31,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:31" (2/3) ... [2020-11-29 22:17:31,589 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e79ed6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:17:31, skipping insertion in model container [2020-11-29 22:17:31,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:17:31,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:17:31" (3/3) ... [2020-11-29 22:17:31,591 INFO L373 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2020-11-29 22:17:31,647 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:17:31,648 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:17:31,648 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:17:31,648 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:17:31,648 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:17:31,648 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:17:31,648 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:17:31,649 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:17:31,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 22:17:31,687 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-29 22:17:31,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:17:31,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:17:31,694 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 22:17:31,694 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:17:31,695 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:17:31,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 22:17:31,696 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-29 22:17:31,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:17:31,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:17:31,697 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 22:17:31,697 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:17:31,705 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 9#L11-2true [2020-11-29 22:17:31,707 INFO L796 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 9#L11-2true [2020-11-29 22:17:31,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:31,722 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-29 22:17:31,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:31,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145830518] [2020-11-29 22:17:31,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:31,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:31,832 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:31,852 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:17:31,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:31,857 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-11-29 22:17:31,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:31,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135040047] [2020-11-29 22:17:31,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:31,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:31,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:31,894 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:17:31,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:31,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-29 22:17:31,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:31,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810257381] [2020-11-29 22:17:31,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:31,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:31,913 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:31,914 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:17:32,012 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:17:32,013 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:17:32,013 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:17:32,013 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:17:32,014 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:17:32,014 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:32,016 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:17:32,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:17:32,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2020-11-29 22:17:32,016 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:17:32,017 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:17:32,042 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 22:17:32,052 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 22:17:32,088 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 22:17:32,194 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:17:32,198 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/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 22:17:32,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:17:32,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:17:32,222 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 22:17:32,223 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_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:17:32,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:17:32,266 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:32,274 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 22:17:32,274 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_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/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 22:17:32,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:17:32,309 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:32,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:17:32,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:17:32,365 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:17:32,367 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:17:32,367 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:17:32,367 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:17:32,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:17:32,367 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:17:32,368 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:32,368 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:17:32,368 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:17:32,368 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2020-11-29 22:17:32,368 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:17:32,368 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:17:32,370 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 22:17:32,380 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 22:17:32,390 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 22:17:32,577 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:17:32,582 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/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 22:17:32,591 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 22:17:32,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:17:32,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:17:32,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:17:32,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:17:32,608 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:17:32,608 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 22:17:32,622 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:17:32,663 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 22:17:32,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:17:32,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:17:32,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:17:32,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:17:32,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:17:32,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:32,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:17:32,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:32,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:17:32,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:17:32,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:17:32,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:17:32,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:17:32,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:17:32,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:17:32,729 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:17:32,733 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:17:32,733 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:32,737 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:17:32,737 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:17:32,738 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:17:32,738 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2020-11-29 22:17:32,760 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:17:32,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:32,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:17:32,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:17:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:32,856 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:17:32,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:17:32,857 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 22:17:32,875 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 22:17:32,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2020-11-29 22:17:32,935 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 19 states and 28 transitions. Complement of second has 5 states. [2020-11-29 22:17:32,939 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 22:17:32,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 22:17:32,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-29 22:17:32,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 1 letters. [2020-11-29 22:17:32,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:17:32,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-29 22:17:32,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:17:32,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-29 22:17:32,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:17:32,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2020-11-29 22:17:32,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:17:32,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 5 states and 7 transitions. [2020-11-29 22:17:32,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-11-29 22:17:32,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-11-29 22:17:32,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2020-11-29 22:17:32,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:17:32,961 INFO L691 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-11-29 22:17:32,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2020-11-29 22:17:32,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-11-29 22:17:32,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 22:17:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-11-29 22:17:32,991 INFO L714 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-11-29 22:17:32,991 INFO L594 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-11-29 22:17:32,991 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:17:32,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2020-11-29 22:17:32,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:17:32,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:17:32,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:17:32,993 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 22:17:32,993 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:17:32,993 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 56#L11-2 assume !(main_~i~0 < 100); 57#L13-1 [2020-11-29 22:17:32,993 INFO L796 eck$LassoCheckResult]: Loop: 57#L13-1 assume !!(main_~j~0 < 21);main_~j~0 := 3 + main_~j~0; 57#L13-1 [2020-11-29 22:17:32,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:32,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2020-11-29 22:17:32,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:32,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423561803] [2020-11-29 22:17:32,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:33,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:17:33,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423561803] [2020-11-29 22:17:33,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:17:33,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 22:17:33,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283595342] [2020-11-29 22:17:33,045 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:17:33,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:33,046 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2020-11-29 22:17:33,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:33,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421670250] [2020-11-29 22:17:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:33,051 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:33,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:33,056 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:17:33,086 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:17:33,087 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:17:33,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:17:33,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:17:33,087 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:17:33,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:33,087 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:17:33,087 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:17:33,087 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2020-11-29 22:17:33,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:17:33,088 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:17:33,089 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 22:17:33,095 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 22:17:33,107 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 22:17:33,154 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:17:33,154 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/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 22:17:33,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:17:33,183 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:33,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 22:17:33,187 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/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 22:17:33,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:17:33,224 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:33,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:17:33,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:17:33,282 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:17:33,283 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:17:33,284 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:17:33,284 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:17:33,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:17:33,284 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:17:33,284 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:33,284 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:17:33,284 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:17:33,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2020-11-29 22:17:33,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:17:33,285 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:17:33,286 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 22:17:33,302 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 22:17:33,306 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 22:17:33,381 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:17:33,381 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:17:33,389 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 22:17:33,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:17:33,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:17:33,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:17:33,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:17:33,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:33,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:17:33,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:17:33,400 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:17:33,403 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:17:33,403 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae4096a-0c1d-406d-9b7a-6d85ae9f0add/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 22:17:33,416 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:17:33,416 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:17:33,417 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:17:33,417 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:17:33,453 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:17:33,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:33,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:17:33,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:17:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:33,537 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:17:33,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:17:33,537 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 22:17:33,538 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 22:17:33,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-11-29 22:17:33,578 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 5 states and 7 transitions. Complement of second has 2 states. [2020-11-29 22:17:33,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-11-29 22:17:33,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 22:17:33,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2020-11-29 22:17:33,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-29 22:17:33,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:17:33,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2020-11-29 22:17:33,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:17:33,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-29 22:17:33,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:17:33,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2020-11-29 22:17:33,581 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:17:33,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2020-11-29 22:17:33,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:17:33,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:17:33,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:17:33,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:17:33,582 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:17:33,582 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:17:33,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:17:33,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:17:33,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:17:33,586 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-29 22:17:33,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:17:33,589 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 22:17:33,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:17:33,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 22:17:33,590 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:17:33,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:17:33,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:17:33,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:17:33,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:17:33,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:17:33,590 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:17:33,590 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:17:33,591 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:17:33,591 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:17:33,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:17:33,591 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:17:33,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 22:17:33,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:17:33 BoogieIcfgContainer [2020-11-29 22:17:33,597 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:17:33,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:17:33,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:17:33,598 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:17:33,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:17:31" (3/4) ... [2020-11-29 22:17:33,601 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:17:33,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:17:33,608 INFO L168 Benchmark]: Toolchain (without parser) took 2648.73 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.3 MB in the beginning and 77.6 MB in the end (delta: -24.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:17:33,609 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 57.5 MB in the beginning and 57.4 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:17:33,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.93 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.1 MB in the beginning and 83.7 MB in the end (delta: -30.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:33,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.56 ms. Allocated memory is still 104.9 MB. Free memory was 83.7 MB in the beginning and 82.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:17:33,611 INFO L168 Benchmark]: Boogie Preprocessor took 22.97 ms. Allocated memory is still 104.9 MB. Free memory was 82.3 MB in the beginning and 81.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:17:33,612 INFO L168 Benchmark]: RCFGBuilder took 222.28 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 73.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:33,614 INFO L168 Benchmark]: BuchiAutomizer took 2015.40 ms. Allocated memory is still 104.9 MB. Free memory was 73.4 MB in the beginning and 78.3 MB in the end (delta: -5.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:17:33,617 INFO L168 Benchmark]: Witness Printer took 4.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.3 MB in the beginning and 77.6 MB in the end (delta: 732.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:33,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 57.5 MB in the beginning and 57.4 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.93 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.1 MB in the beginning and 83.7 MB in the end (delta: -30.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.56 ms. Allocated memory is still 104.9 MB. Free memory was 83.7 MB in the beginning and 82.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.97 ms. Allocated memory is still 104.9 MB. Free memory was 82.3 MB in the beginning and 81.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 222.28 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 73.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2015.40 ms. Allocated memory is still 104.9 MB. Free memory was 73.4 MB in the beginning and 78.3 MB in the end (delta: -5.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.3 MB in the beginning and 77.6 MB in the end (delta: 732.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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...