./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_1.5.800.v20200727-1323.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/termination-restricted-15/NO_01.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash ac2b0e405f36a91125e1a90b6b63874c5fe808a1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:11:00,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:11:00,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:11:00,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:11:00,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:11:00,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:11:00,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:11:00,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:11:00,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:11:00,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:11:00,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:11:00,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:11:00,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:11:00,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:11:00,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:11:00,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:11:00,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:11:00,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:11:00,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:11:00,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:11:00,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:11:00,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:11:00,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:11:00,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:11:00,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:11:00,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:11:00,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:11:00,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:11:00,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:11:00,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:11:00,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:11:00,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:11:00,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:11:00,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:11:00,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:11:00,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:11:00,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:11:00,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:11:00,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:11:00,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:11:00,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:11:00,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:11:00,936 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:11:00,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:11:00,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:11:00,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:11:00,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:11:00,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:11:00,940 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:11:00,940 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:11:00,940 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:11:00,940 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:11:00,941 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:11:00,941 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:11:00,942 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:11:00,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:11:00,942 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:11:00,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:11:00,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:11:00,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:11:00,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:11:00,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:11:00,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:11:00,949 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:11:00,949 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:11:00,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:11:00,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:11:00,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:11:00,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:11:00,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:11:00,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:11:00,951 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:11:00,952 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac2b0e405f36a91125e1a90b6b63874c5fe808a1 [2021-08-27 14:11:01,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:11:01,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:11:01,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:11:01,278 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:11:01,280 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:11:01,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_01.c [2021-08-27 14:11:01,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f643ed437/f0341d8e9a834101b298e97f80beb12d/FLAG258745e61 [2021-08-27 14:11:01,734 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:11:01,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_01.c [2021-08-27 14:11:01,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f643ed437/f0341d8e9a834101b298e97f80beb12d/FLAG258745e61 [2021-08-27 14:11:01,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f643ed437/f0341d8e9a834101b298e97f80beb12d [2021-08-27 14:11:01,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:11:01,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:11:01,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:11:01,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:11:01,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:11:01,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258cab26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01, skipping insertion in model container [2021-08-27 14:11:01,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:11:01,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:11:01,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:11:01,874 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:11:01,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:11:01,902 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:11:01,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01 WrapperNode [2021-08-27 14:11:01,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:11:01,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:11:01,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:11:01,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:11:01,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:11:01,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:11:01,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:11:01,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:11:01,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:11:01,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:11:01,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:11:01,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:11:01,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (1/1) ... [2021-08-27 14:11:01,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:01,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:11:02,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:11:02,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 14:11:02,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:11:02,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:11:02,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:11:02,230 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-27 14:11:02,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:11:02 BoogieIcfgContainer [2021-08-27 14:11:02,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:11:02,243 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:11:02,244 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:11:02,246 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:11:02,247 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:11:02,247 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:11:01" (1/3) ... [2021-08-27 14:11:02,247 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7af020c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:11:02, skipping insertion in model container [2021-08-27 14:11:02,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:11:02,248 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:11:01" (2/3) ... [2021-08-27 14:11:02,248 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7af020c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:11:02, skipping insertion in model container [2021-08-27 14:11:02,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:11:02,248 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:11:02" (3/3) ... [2021-08-27 14:11:02,249 INFO L389 chiAutomizerObserver]: Analyzing ICFG NO_01.c [2021-08-27 14:11:02,307 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:11:02,307 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:11:02,307 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:11:02,308 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:11:02,308 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:11:02,308 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:11:02,308 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:11:02,308 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:11:02,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:11:02,335 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2021-08-27 14:11:02,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:11:02,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:11:02,339 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:11:02,340 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:11:02,340 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:11:02,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:11:02,342 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2021-08-27 14:11:02,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:11:02,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:11:02,343 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:11:02,343 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:11:02,348 INFO L791 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 9#L10true assume main_~c~0 <= 10;main_~i~0 := 0; 3#L12-2true [2021-08-27 14:11:02,348 INFO L793 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 3#L12-2true [2021-08-27 14:11:02,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:11:02,356 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-08-27 14:11:02,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:11:02,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924404096] [2021-08-27 14:11:02,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:11:02,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:11:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:11:02,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:11:02,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:11:02,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924404096] [2021-08-27 14:11:02,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924404096] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:11:02,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:11:02,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 14:11:02,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405580555] [2021-08-27 14:11:02,543 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:11:02,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:11:02,546 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2021-08-27 14:11:02,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:11:02,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319411099] [2021-08-27 14:11:02,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:11:02,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:11:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:11:02,559 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:11:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:11:02,570 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:11:02,605 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:11:02,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:11:02,606 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:11:02,606 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:11:02,606 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 14:11:02,606 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:02,606 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:11:02,607 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:11:02,607 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2021-08-27 14:11:02,607 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:11:02,607 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:11:02,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:11:02,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:11:02,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:11:02,719 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:11:02,719 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 14:11:02,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:02,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:11:02,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:11:02,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 14:11:02,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:11:02,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:11:02,768 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 14:11:02,768 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: [] [2021-08-27 14:11:02,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 14:11:02,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:02,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:11:02,797 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:11:02,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 14:11:02,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:11:02,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:11:02,817 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 14:11:02,817 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: [] [2021-08-27 14:11:02,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-08-27 14:11:02,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:02,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:11:02,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:11:02,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 14:11:02,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 14:11:02,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:11:02,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 14:11:02,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:02,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:11:02,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:11:02,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 14:11:02,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 14:11:02,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 14:11:02,920 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 14:11:02,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 14:11:02,924 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:11:02,924 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:11:02,924 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:11:02,924 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:11:02,924 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:11:02,924 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:02,924 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:11:02,924 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:11:02,924 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2021-08-27 14:11:02,924 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:11:02,924 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:11:02,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:11:02,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:11:02,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:11:02,989 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:11:02,992 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:11:02,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:02,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:11:02,994 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:11:02,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 14:11:03,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:11:03,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:11:03,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:11:03,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:11:03,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:11:03,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:11:03,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:11:03,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:11:03,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 14:11:03,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:03,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:11:03,077 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:11:03,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 14:11:03,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:11:03,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:11:03,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:11:03,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:11:03,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:11:03,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:11:03,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:11:03,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:11:03,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 14:11:03,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:03,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:11:03,143 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:11:03,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 14:11:03,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:11:03,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:11:03,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:11:03,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:11:03,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:11:03,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:11:03,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:11:03,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:11:03,174 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:11:03,177 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 14:11:03,177 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 14:11:03,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:11:03,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:11:03,179 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:11:03,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 14:11:03,182 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:11:03,182 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 14:11:03,182 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:11:03,182 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2021-08-27 14:11:03,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 14:11:03,201 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 14:11:03,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:11:03,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-08-27 14:11:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:11:03,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:11:03,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:11:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:11:03,284 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 14:11:03,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:11:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:11:03,295 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 [2021-08-27 14:11:03,297 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:11:03,331 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 45 transitions. Complement of second has 5 states. [2021-08-27 14:11:03,332 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 [2021-08-27 14:11:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:11:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2021-08-27 14:11:03,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 1 letters. [2021-08-27 14:11:03,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:11:03,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2021-08-27 14:11:03,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:11:03,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 2 letters. [2021-08-27 14:11:03,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:11:03,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 45 transitions. [2021-08-27 14:11:03,342 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2021-08-27 14:11:03,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 7 states and 10 transitions. [2021-08-27 14:11:03,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-08-27 14:11:03,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-27 14:11:03,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-08-27 14:11:03,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:11:03,346 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 14:11:03,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-08-27 14:11:03,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-27 14:11:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:11:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-08-27 14:11:03,365 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 14:11:03,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:11:03,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 14:11:03,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 14:11:03,370 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:11:03,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:11:03,382 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2021-08-27 14:11:03,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 14:11:03,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 5 transitions. [2021-08-27 14:11:03,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:11:03,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 5 transitions. [2021-08-27 14:11:03,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-08-27 14:11:03,385 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-08-27 14:11:03,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2021-08-27 14:11:03,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:11:03,386 INFO L681 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2021-08-27 14:11:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2021-08-27 14:11:03,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-08-27 14:11:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:11:03,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2021-08-27 14:11:03,387 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2021-08-27 14:11:03,387 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2021-08-27 14:11:03,387 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:11:03,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2021-08-27 14:11:03,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:11:03,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:11:03,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:11:03,389 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 14:11:03,389 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:11:03,389 INFO L791 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 87#L10 assume !(main_~c~0 <= 10); 84#L17 assume !(main_~c~0 <= 50); 85#L17-1 assume !(main_~c~0 <= 100);main_~i~0 := 0; 88#L31-2 [2021-08-27 14:11:03,390 INFO L793 eck$LassoCheckResult]: Loop: 88#L31-2 assume !!(main_~i~0 < 103);main_~i~0 := main_~i~0; 88#L31-2 [2021-08-27 14:11:03,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:11:03,390 INFO L82 PathProgramCache]: Analyzing trace with hash 971748, now seen corresponding path program 1 times [2021-08-27 14:11:03,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:11:03,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566401953] [2021-08-27 14:11:03,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:11:03,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:11:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:11:03,404 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:11:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:11:03,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:11:03,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:11:03,412 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2021-08-27 14:11:03,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:11:03,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575678451] [2021-08-27 14:11:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:11:03,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:11:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:11:03,422 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:11:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:11:03,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:11:03,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:11:03,427 INFO L82 PathProgramCache]: Analyzing trace with hash 30124250, now seen corresponding path program 1 times [2021-08-27 14:11:03,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:11:03,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056012662] [2021-08-27 14:11:03,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:11:03,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:11:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:11:03,434 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:11:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:11:03,450 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:11:03,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:11:03 BoogieIcfgContainer [2021-08-27 14:11:03,520 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:11:03,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:11:03,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:11:03,521 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:11:03,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:11:02" (3/4) ... [2021-08-27 14:11:03,523 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 14:11:03,553 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 14:11:03,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:11:03,555 INFO L168 Benchmark]: Toolchain (without parser) took 1795.83 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.2 MB in the beginning and 27.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-08-27 14:11:03,555 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 52.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:11:03,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.40 ms. Allocated memory is still 54.5 MB. Free memory was 32.9 MB in the beginning and 37.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-08-27 14:11:03,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.93 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 37.8 MB in the beginning and 51.2 MB in the end (delta: -13.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 14:11:03,556 INFO L168 Benchmark]: Boogie Preprocessor took 47.60 ms. Allocated memory is still 67.1 MB. Free memory was 51.2 MB in the beginning and 50.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:11:03,556 INFO L168 Benchmark]: RCFGBuilder took 263.97 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 40.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:11:03,557 INFO L168 Benchmark]: BuchiAutomizer took 1276.23 ms. Allocated memory is still 67.1 MB. Free memory was 40.2 MB in the beginning and 28.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:11:03,557 INFO L168 Benchmark]: Witness Printer took 32.51 ms. Allocated memory is still 67.1 MB. Free memory was 28.8 MB in the beginning and 27.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:11:03,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 52.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 144.40 ms. Allocated memory is still 54.5 MB. Free memory was 32.9 MB in the beginning and 37.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.93 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 37.8 MB in the beginning and 51.2 MB in the end (delta: -13.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.60 ms. Allocated memory is still 67.1 MB. Free memory was 51.2 MB in the beginning and 50.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 263.97 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 40.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1276.23 ms. Allocated memory is still 67.1 MB. Free memory was 40.2 MB in the beginning and 28.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Witness Printer took 32.51 ms. Allocated memory is still 67.1 MB. Free memory was 28.8 MB in the beginning and 27.2 MB in the end (delta: 1.6 MB). 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 9.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 23 SDslu, 3 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.8ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 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: 58ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 31]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, c=864, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 [L10] COND FALSE !(c <= 10) [L17] COND FALSE !(c <= 50) [L23] COND FALSE !(c <= 100) [L30] i = 0 Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 14:11:03,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...