./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be --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 b31ed4b72f45e3756b3103e506bd8e9f5ed0e7b74e7d7650bd4662c6650f610a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-e943c26 [2021-10-21 19:39:14,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:39:14,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:39:14,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:39:14,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:39:14,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:39:14,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:39:14,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:39:14,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:39:14,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:39:14,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:39:14,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:39:14,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:39:14,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:39:14,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:39:14,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:39:14,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:39:14,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:39:14,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:39:14,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:39:14,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:39:14,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:39:14,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:39:14,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:39:14,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:39:14,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:39:14,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:39:14,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:39:14,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:39:14,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:39:14,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:39:14,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:39:14,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:39:14,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:39:14,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:39:14,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:39:14,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:39:14,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:39:14,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:39:14,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:39:14,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:39:14,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:39:14,959 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:39:14,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:39:14,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:39:14,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:39:14,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:39:14,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:39:14,962 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:39:14,963 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:39:14,963 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:39:14,963 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:39:14,964 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:39:14,964 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:39:14,965 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:39:14,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:39:14,965 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:39:14,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:39:14,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:39:14,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:39:14,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:39:14,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:39:14,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:39:14,967 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:39:14,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:39:14,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:39:14,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:39:14,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:39:14,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:39:14,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:39:14,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:39:14,971 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:39:14,971 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b31ed4b72f45e3756b3103e506bd8e9f5ed0e7b74e7d7650bd4662c6650f610a [2021-10-21 19:39:15,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:39:15,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:39:15,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:39:15,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:39:15,280 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:39:15,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-restricted-15/Ex03.c [2021-10-21 19:39:15,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/data/1e7fc1c8a/339bf0026768406487fcc0d44dc1354c/FLAGf31d5a436 [2021-10-21 19:39:15,764 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:39:15,764 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/sv-benchmarks/c/termination-restricted-15/Ex03.c [2021-10-21 19:39:15,769 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/data/1e7fc1c8a/339bf0026768406487fcc0d44dc1354c/FLAGf31d5a436 [2021-10-21 19:39:16,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/data/1e7fc1c8a/339bf0026768406487fcc0d44dc1354c [2021-10-21 19:39:16,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:39:16,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:39:16,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:39:16,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:39:16,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:39:16,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8f443b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16, skipping insertion in model container [2021-10-21 19:39:16,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:39:16,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:39:16,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:39:16,314 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:39:16,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:39:16,337 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:39:16,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16 WrapperNode [2021-10-21 19:39:16,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:39:16,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:39:16,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:39:16,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:39:16,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:39:16,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:39:16,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:39:16,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:39:16,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:39:16,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:39:16,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:39:16,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:39:16,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (1/1) ... [2021-10-21 19:39:16,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:16,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:16,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:16,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:39:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:39:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:39:16,650 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:39:16,650 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:39:16,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:39:16 BoogieIcfgContainer [2021-10-21 19:39:16,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:39:16,655 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:39:16,655 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:39:16,659 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:39:16,660 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:39:16,660 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:39:16" (1/3) ... [2021-10-21 19:39:16,661 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@736434ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:39:16, skipping insertion in model container [2021-10-21 19:39:16,662 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:39:16,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:16" (2/3) ... [2021-10-21 19:39:16,663 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@736434ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:39:16, skipping insertion in model container [2021-10-21 19:39:16,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:39:16,663 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:39:16" (3/3) ... [2021-10-21 19:39:16,665 INFO L389 chiAutomizerObserver]: Analyzing ICFG Ex03.c [2021-10-21 19:39:16,723 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:39:16,723 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:39:16,723 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:39:16,724 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:39:16,724 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:39:16,724 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:39:16,724 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:39:16,724 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:39:16,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-21 19:39:16,758 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:39:16,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:39:16,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:39:16,763 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:39:16,763 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:39:16,763 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:39:16,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-21 19:39:16,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:39:16,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:39:16,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:39:16,765 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:39:16,765 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:39:16,772 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 4#L10-2true [2021-10-21 19:39:16,772 INFO L793 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0 < 0); 6#L10true assume -5 != main_~i~0;main_~i~0 := 1 + main_~i~0; 4#L10-2true [2021-10-21 19:39:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:16,779 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-21 19:39:16,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:39:16,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923280381] [2021-10-21 19:39:16,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:16,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:39:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:16,856 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:39:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:16,873 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:39:16,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:16,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-21 19:39:16,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:39:16,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469881661] [2021-10-21 19:39:16,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:16,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:39:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:16,886 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:39:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:16,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:39:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:16,893 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-21 19:39:16,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:39:16,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088016222] [2021-10-21 19:39:16,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:16,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:39:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:16,901 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:39:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:16,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:39:16,968 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:39:16,969 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:39:16,969 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:39:16,969 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:39:16,969 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:39:16,969 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:16,969 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:39:16,970 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:39:16,970 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex03.c_Iteration1_Loop [2021-10-21 19:39:16,970 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:39:16,970 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:39:16,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:39:16,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:39:16,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:39:17,182 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:39:17,183 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:39:17,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:17,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:17,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:17,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:39:17,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:39:17,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:39:17,266 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:39:17,266 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: [] [2021-10-21 19:39:17,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:39:17,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:17,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:17,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:17,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:39:17,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:39:17,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:39:17,325 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:39:17,325 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: [] [2021-10-21 19:39:17,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:39:17,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:17,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:17,354 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:17,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:39:17,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:39:17,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:39:17,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:39:17,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:17,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:17,425 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:17,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:39:17,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:39:17,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:39:17,485 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:39:17,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-21 19:39:17,488 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:39:17,488 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:39:17,488 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:39:17,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:39:17,489 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:39:17,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:17,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:39:17,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:39:17,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex03.c_Iteration1_Loop [2021-10-21 19:39:17,489 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:39:17,489 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:39:17,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:39:17,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:39:17,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:39:17,605 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:39:17,609 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:39:17,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:17,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:17,623 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:17,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:39:17,627 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 [2021-10-21 19:39:17,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:39:17,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:39:17,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:39:17,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:39:17,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:39:17,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:39:17,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:39:17,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:39:17,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:17,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:17,700 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:17,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:39:17,703 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 [2021-10-21 19:39:17,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:39:17,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:39:17,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:39:17,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:39:17,724 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:39:17,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:39:17,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:39:17,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-21 19:39:17,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:17,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:17,766 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:17,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:39:17,768 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 [2021-10-21 19:39:17,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:39:17,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:39:17,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:39:17,776 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:39:17,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:39:17,779 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:39:17,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:39:17,794 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:39:17,798 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 19:39:17,799 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:39:17,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:39:17,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:17,801 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:17,807 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:39:17,807 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:39:17,807 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:39:17,808 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 19:39:17,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:39:17,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:39:17,842 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:39:17,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:39:17,879 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:39:17,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:39:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:39:17,894 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:39:17,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:39:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:39:17,950 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:39:17,951 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 3 states, 3 states have (on average 1.0) 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) [2021-10-21 19:39:17,999 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 3 states, 3 states have (on average 1.0) 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 20 states and 28 transitions. Complement of second has 7 states. [2021-10-21 19:39:17,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:39:18,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) 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) [2021-10-21 19:39:18,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2021-10-21 19:39:18,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-21 19:39:18,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:39:18,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 19:39:18,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:39:18,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-21 19:39:18,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:39:18,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2021-10-21 19:39:18,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:39:18,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2021-10-21 19:39:18,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-21 19:39:18,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-21 19:39:18,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-21 19:39:18,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:39:18,017 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-21 19:39:18,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-21 19:39:18,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-21 19:39:18,039 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) [2021-10-21 19:39:18,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-21 19:39:18,041 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 19:39:18,041 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 19:39:18,041 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:39:18,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-21 19:39:18,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:39:18,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:39:18,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:39:18,043 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:39:18,043 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:39:18,043 INFO L791 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 68#L10-2 assume !!(main_~i~0 < 0); 64#L10 [2021-10-21 19:39:18,043 INFO L793 eck$LassoCheckResult]: Loop: 64#L10 assume !(-5 != main_~i~0); 63#L10-2 assume !!(main_~i~0 < 0); 64#L10 [2021-10-21 19:39:18,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:18,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-21 19:39:18,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:39:18,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59182394] [2021-10-21 19:39:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:18,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:39:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:18,052 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:39:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:18,058 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:39:18,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:18,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2021-10-21 19:39:18,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:39:18,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333781137] [2021-10-21 19:39:18,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:18,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:39:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:18,068 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:39:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:18,078 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:39:18,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:18,082 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2021-10-21 19:39:18,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:39:18,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824346729] [2021-10-21 19:39:18,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:18,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:39:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:18,093 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:39:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:39:18,102 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:39:18,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:39:18 BoogieIcfgContainer [2021-10-21 19:39:18,147 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:39:18,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:39:18,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:39:18,148 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:39:18,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:39:16" (3/4) ... [2021-10-21 19:39:18,151 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:39:18,178 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:39:18,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:39:18,180 INFO L168 Benchmark]: Toolchain (without parser) took 2020.53 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 51.3 MB in the beginning and 60.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:18,180 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:39:18,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.89 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 51.1 MB in the beginning and 92.2 MB in the end (delta: -41.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:18,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.38 ms. Allocated memory is still 113.2 MB. Free memory was 92.2 MB in the beginning and 90.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:18,182 INFO L168 Benchmark]: Boogie Preprocessor took 13.23 ms. Allocated memory is still 113.2 MB. Free memory was 90.6 MB in the beginning and 89.9 MB in the end (delta: 720.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:39:18,183 INFO L168 Benchmark]: RCFGBuilder took 254.90 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 82.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:18,183 INFO L168 Benchmark]: BuchiAutomizer took 1491.94 ms. Allocated memory is still 113.2 MB. Free memory was 82.0 MB in the beginning and 61.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:18,184 INFO L168 Benchmark]: Witness Printer took 30.71 ms. Allocated memory is still 113.2 MB. Free memory was 61.9 MB in the beginning and 60.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:18,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 177.89 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 51.1 MB in the beginning and 92.2 MB in the end (delta: -41.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.38 ms. Allocated memory is still 113.2 MB. Free memory was 92.2 MB in the beginning and 90.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 13.23 ms. Allocated memory is still 113.2 MB. Free memory was 90.6 MB in the beginning and 89.9 MB in the end (delta: 720.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 254.90 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 82.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1491.94 ms. Allocated memory is still 113.2 MB. Free memory was 82.0 MB in the beginning and 61.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * Witness Printer took 30.71 ms. Allocated memory is still 113.2 MB. Free memory was 61.9 MB in the beginning and 60.5 MB in the end (delta: 1.5 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i and consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 11.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax175 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq175 hnf96 smp100 dnf155 smp92 tf105 neg95 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bbf188e=0, \result=0, i=-5} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i < 0 Loop: [L10] COND FALSE !(i != -5) [L9] COND TRUE i < 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:39:18,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:39:18,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882b5c29-bd1d-4783-86a3-18f2989a2c0b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...