./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/while_infinite_loop_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/while_infinite_loop_4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf11ae0ce80f2ff20585fcb052cccfcf6fefbf1f ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 07:05:04,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:05:04,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:05:04,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:05:04,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:05:04,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:05:04,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:05:04,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:05:04,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:05:04,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:05:04,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:05:04,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:05:04,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:05:04,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:05:04,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:05:04,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:05:04,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:05:04,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:05:04,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:05:04,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:05:04,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:05:04,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:05:04,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:05:04,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:05:04,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:05:04,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:05:04,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:05:04,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:05:04,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:05:04,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:05:04,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:05:04,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:05:04,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:05:04,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:05:04,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:05:04,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:05:04,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:05:04,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:05:04,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:05:04,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:05:04,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:05:04,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:05:04,725 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:05:04,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:05:04,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:05:04,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:05:04,730 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:05:04,730 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:05:04,731 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:05:04,731 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:05:04,731 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:05:04,731 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:05:04,731 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:05:04,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:05:04,732 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:05:04,732 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:05:04,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:05:04,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:05:04,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:05:04,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:05:04,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:05:04,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:05:04,735 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:05:04,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:05:04,735 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:05:04,736 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:05:04,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:05:04,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:05:04,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:05:04,737 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:05:04,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:05:04,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:05:04,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:05:04,738 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:05:04,739 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:05:04,739 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf11ae0ce80f2ff20585fcb052cccfcf6fefbf1f [2020-10-20 07:05:04,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:05:05,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:05:05,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:05:05,020 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:05:05,021 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:05:05,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/while_infinite_loop_4.c [2020-10-20 07:05:05,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0d4d077/0ed60aeccc4b4f658eeb371ac02b6ea6/FLAG61fce4c77 [2020-10-20 07:05:05,634 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:05:05,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/while_infinite_loop_4.c [2020-10-20 07:05:05,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0d4d077/0ed60aeccc4b4f658eeb371ac02b6ea6/FLAG61fce4c77 [2020-10-20 07:05:05,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0d4d077/0ed60aeccc4b4f658eeb371ac02b6ea6 [2020-10-20 07:05:05,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:05:05,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:05:05,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:05:05,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:05:05,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:05:05,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:05:05" (1/1) ... [2020-10-20 07:05:05,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ebd3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:05, skipping insertion in model container [2020-10-20 07:05:05,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:05:05" (1/1) ... [2020-10-20 07:05:05,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:05:05,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:05:06,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:05:06,218 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:05:06,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:05:06,266 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:05:06,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06 WrapperNode [2020-10-20 07:05:06,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:05:06,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:05:06,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:05:06,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:05:06,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... [2020-10-20 07:05:06,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... [2020-10-20 07:05:06,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:05:06,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:05:06,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:05:06,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:05:06,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... [2020-10-20 07:05:06,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... [2020-10-20 07:05:06,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... [2020-10-20 07:05:06,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... [2020-10-20 07:05:06,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... [2020-10-20 07:05:06,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... [2020-10-20 07:05:06,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... [2020-10-20 07:05:06,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:05:06,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:05:06,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:05:06,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:05:06,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 07:05:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:05:06,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:05:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:05:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:05:06,652 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:05:06,652 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-20 07:05:06,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:05:06 BoogieIcfgContainer [2020-10-20 07:05:06,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:05:06,654 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:05:06,655 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:05:06,658 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:05:06,659 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:05:06,660 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:05:05" (1/3) ... [2020-10-20 07:05:06,661 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@cb40541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:05:06, skipping insertion in model container [2020-10-20 07:05:06,661 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:05:06,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:05:06" (2/3) ... [2020-10-20 07:05:06,662 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@cb40541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:05:06, skipping insertion in model container [2020-10-20 07:05:06,662 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:05:06,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:05:06" (3/3) ... [2020-10-20 07:05:06,663 INFO L373 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_4.c [2020-10-20 07:05:06,741 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:05:06,741 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:05:06,741 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:05:06,742 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:05:06,742 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:05:06,742 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:05:06,742 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:05:06,742 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:05:06,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 07:05:06,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 07:05:06,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:05:06,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:05:06,793 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 07:05:06,793 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 07:05:06,793 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:05:06,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 07:05:06,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 07:05:06,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:05:06,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:05:06,796 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 07:05:06,796 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 07:05:06,805 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~x~0 := 0; 7#L-1true havoc main_#res; 18#L6-2true [2020-10-20 07:05:06,808 INFO L796 eck$LassoCheckResult]: Loop: 18#L6-2true assume !false; 3#L16loopEntrytrue assume false; 17#L16-2true __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5#L6true assume !(0 == __VERIFIER_assert_~cond); 18#L6-2true [2020-10-20 07:05:06,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:05:06,819 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-20 07:05:06,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:05:06,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232784193] [2020-10-20 07:05:06,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:05:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:05:06,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:05:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:05:06,960 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:05:06,981 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:05:06,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:05:06,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1269329, now seen corresponding path program 1 times [2020-10-20 07:05:06,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:05:06,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780552730] [2020-10-20 07:05:06,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:05:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:05:07,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:05:07,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780552730] [2020-10-20 07:05:07,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:05:07,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 07:05:07,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536889353] [2020-10-20 07:05:07,023 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 07:05:07,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:05:07,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 07:05:07,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 07:05:07,042 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2020-10-20 07:05:07,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:05:07,049 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2020-10-20 07:05:07,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 07:05:07,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2020-10-20 07:05:07,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 07:05:07,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 6 transitions. [2020-10-20 07:05:07,058 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-20 07:05:07,058 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-10-20 07:05:07,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2020-10-20 07:05:07,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:05:07,059 INFO L691 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-10-20 07:05:07,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2020-10-20 07:05:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-10-20 07:05:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 07:05:07,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-10-20 07:05:07,098 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-10-20 07:05:07,098 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-10-20 07:05:07,098 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:05:07,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2020-10-20 07:05:07,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 07:05:07,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:05:07,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:05:07,100 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 07:05:07,100 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 07:05:07,100 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~x~0 := 0; 31#L-1 havoc main_#res; 32#L6-2 [2020-10-20 07:05:07,100 INFO L796 eck$LassoCheckResult]: Loop: 32#L6-2 assume !false; 34#L16loopEntry assume !false;~x~0 := 1; 35#L16-2 __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 36#L6 assume !(0 == __VERIFIER_assert_~cond); 32#L6-2 [2020-10-20 07:05:07,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:05:07,101 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-10-20 07:05:07,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:05:07,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240962079] [2020-10-20 07:05:07,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:05:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:05:07,116 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:05:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:05:07,129 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:05:07,134 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:05:07,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:05:07,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1271251, now seen corresponding path program 1 times [2020-10-20 07:05:07,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:05:07,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322125596] [2020-10-20 07:05:07,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:05:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:05:07,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:05:07,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322125596] [2020-10-20 07:05:07,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:05:07,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 07:05:07,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670297358] [2020-10-20 07:05:07,200 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 07:05:07,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:05:07,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 07:05:07,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 07:05:07,201 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. cyclomatic complexity: 1 Second operand 4 states. [2020-10-20 07:05:07,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:05:07,229 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-10-20 07:05:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 07:05:07,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2020-10-20 07:05:07,231 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:05:07,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2020-10-20 07:05:07,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:05:07,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:05:07,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:05:07,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:05:07,232 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:05:07,232 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:05:07,232 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:05:07,232 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 07:05:07,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:05:07,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:05:07,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:05:07,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:05:07 BoogieIcfgContainer [2020-10-20 07:05:07,239 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:05:07,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:05:07,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:05:07,240 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:05:07,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:05:06" (3/4) ... [2020-10-20 07:05:07,245 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:05:07,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:05:07,248 INFO L168 Benchmark]: Toolchain (without parser) took 1314.16 ms. Allocated memory was 42.5 MB in the beginning and 46.1 MB in the end (delta: 3.7 MB). Free memory was 23.3 MB in the beginning and 15.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:07,249 INFO L168 Benchmark]: CDTParser took 1.40 ms. Allocated memory is still 32.0 MB. Free memory was 10.7 MB in the beginning and 10.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 07:05:07,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.73 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 22.4 MB in the beginning and 25.0 MB in the end (delta: -2.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:07,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.89 ms. Allocated memory is still 43.0 MB. Free memory was 24.9 MB in the beginning and 23.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:07,252 INFO L168 Benchmark]: Boogie Preprocessor took 47.50 ms. Allocated memory is still 43.0 MB. Free memory was 23.2 MB in the beginning and 22.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:07,253 INFO L168 Benchmark]: RCFGBuilder took 291.57 ms. Allocated memory is still 43.0 MB. Free memory was 22.0 MB in the beginning and 10.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:07,254 INFO L168 Benchmark]: BuchiAutomizer took 585.15 ms. Allocated memory was 43.0 MB in the beginning and 46.1 MB in the end (delta: 3.1 MB). Free memory was 10.2 MB in the beginning and 16.4 MB in the end (delta: -6.2 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 07:05:07,255 INFO L168 Benchmark]: Witness Printer took 5.23 ms. Allocated memory is still 46.1 MB. Free memory was 16.4 MB in the beginning and 15.8 MB in the end (delta: 594.7 kB). Peak memory consumption was 594.7 kB. Max. memory is 14.3 GB. [2020-10-20 07:05:07,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40 ms. Allocated memory is still 32.0 MB. Free memory was 10.7 MB in the beginning and 10.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 327.73 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 22.4 MB in the beginning and 25.0 MB in the end (delta: -2.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 43.89 ms. Allocated memory is still 43.0 MB. Free memory was 24.9 MB in the beginning and 23.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 47.50 ms. Allocated memory is still 43.0 MB. Free memory was 23.2 MB in the beginning and 22.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 291.57 ms. Allocated memory is still 43.0 MB. Free memory was 22.0 MB in the beginning and 10.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 585.15 ms. Allocated memory was 43.0 MB in the beginning and 46.1 MB in the end (delta: 3.1 MB). Free memory was 10.2 MB in the beginning and 16.4 MB in the end (delta: -6.2 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 5.23 ms. Allocated memory is still 46.1 MB. Free memory was 16.4 MB in the beginning and 15.8 MB in the end (delta: 594.7 kB). Peak memory consumption was 594.7 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic). 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 1 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...