./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa --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 57953bf177b77bdcba210d5dce369395d242a617ef951a05d4a0af10ca288ca4 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:57:00,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:57:00,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:57:00,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:57:00,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:57:00,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:57:00,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:57:00,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:57:00,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:57:00,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:57:00,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:57:00,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:57:00,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:57:00,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:57:00,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:57:00,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:57:00,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:57:01,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:57:01,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:57:01,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:57:01,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:57:01,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:57:01,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:57:01,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:57:01,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:57:01,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:57:01,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:57:01,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:57:01,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:57:01,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:57:01,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:57:01,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:57:01,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:57:01,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:57:01,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:57:01,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:57:01,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:57:01,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:57:01,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:57:01,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:57:01,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:57:01,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 20:57:01,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:57:01,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:57:01,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:57:01,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:57:01,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:57:01,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:57:01,052 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:57:01,053 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 20:57:01,053 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 20:57:01,053 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 20:57:01,053 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 20:57:01,053 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 20:57:01,053 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 20:57:01,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:57:01,054 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:57:01,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:57:01,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:57:01,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 20:57:01,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 20:57:01,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 20:57:01,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:57:01,055 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 20:57:01,055 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:57:01,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 20:57:01,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:57:01,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:57:01,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:57:01,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:57:01,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:57:01,058 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 20:57:01,058 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_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57953bf177b77bdcba210d5dce369395d242a617ef951a05d4a0af10ca288ca4 [2021-12-06 20:57:01,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:57:01,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:57:01,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:57:01,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:57:01,279 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:57:01,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-restricted-15/NO_03.c [2021-12-06 20:57:01,322 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/data/56a3e0701/3bda57a08d614445901d67bcd243e344/FLAGd976a3d70 [2021-12-06 20:57:01,725 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:57:01,726 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/sv-benchmarks/c/termination-restricted-15/NO_03.c [2021-12-06 20:57:01,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/data/56a3e0701/3bda57a08d614445901d67bcd243e344/FLAGd976a3d70 [2021-12-06 20:57:01,739 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/data/56a3e0701/3bda57a08d614445901d67bcd243e344 [2021-12-06 20:57:01,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:57:01,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:57:01,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:57:01,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:57:01,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:57:01,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273e8a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01, skipping insertion in model container [2021-12-06 20:57:01,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:57:01,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:57:01,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:57:01,876 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:57:01,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:57:01,894 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:57:01,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01 WrapperNode [2021-12-06 20:57:01,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:57:01,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:57:01,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:57:01,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:57:01,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,915 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-06 20:57:01,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:57:01,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:57:01,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:57:01,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:57:01,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:57:01,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:57:01,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:57:01,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:57:01,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (1/1) ... [2021-12-06 20:57:01,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:57:01,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:57:01,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:57:01,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 20:57:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:57:01,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:57:02,028 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:57:02,029 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:57:02,068 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:57:02,074 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:57:02,075 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 20:57:02,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:57:02 BoogieIcfgContainer [2021-12-06 20:57:02,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:57:02,078 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 20:57:02,078 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 20:57:02,081 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 20:57:02,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:57:02,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 08:57:01" (1/3) ... [2021-12-06 20:57:02,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@384f4731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:57:02, skipping insertion in model container [2021-12-06 20:57:02,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:57:02,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:57:01" (2/3) ... [2021-12-06 20:57:02,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@384f4731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:57:02, skipping insertion in model container [2021-12-06 20:57:02,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:57:02,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:57:02" (3/3) ... [2021-12-06 20:57:02,085 INFO L388 chiAutomizerObserver]: Analyzing ICFG NO_03.c [2021-12-06 20:57:02,130 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 20:57:02,130 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 20:57:02,130 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 20:57:02,130 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 20:57:02,130 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 20:57:02,130 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 20:57:02,131 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 20:57:02,131 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 20:57:02,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-06 20:57:02,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:57:02,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:57:02,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:57:02,166 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 20:57:02,166 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:57:02,166 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 20:57:02,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-06 20:57:02,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:57:02,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:57:02,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:57:02,168 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 20:57:02,168 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:57:02,175 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 5#L10-2true [2021-12-06 20:57:02,175 INFO L793 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 3#L12-2true assume !(main_~j~0#1 < 1); 8#L12-3true main_~i~0#1 := main_~i~0#1; 5#L10-2true [2021-12-06 20:57:02,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:57:02,180 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 20:57:02,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:57:02,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144445401] [2021-12-06 20:57:02,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:57:02,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:57:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:57:02,260 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:57:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:57:02,274 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:57:02,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:57:02,277 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-12-06 20:57:02,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:57:02,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598295355] [2021-12-06 20:57:02,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:57:02,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:57:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:57:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:57:02,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:57:02,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598295355] [2021-12-06 20:57:02,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598295355] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:57:02,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:57:02,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:57:02,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630125972] [2021-12-06 20:57:02,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:57:02,347 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 20:57:02,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:57:02,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:57:02,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:57:02,389 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-06 20:57:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:57:02,404 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-12-06 20:57:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:57:02,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-06 20:57:02,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 20:57:02,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2021-12-06 20:57:02,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 20:57:02,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 20:57:02,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2021-12-06 20:57:02,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:57:02,417 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-06 20:57:02,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2021-12-06 20:57:02,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-12-06 20:57:02,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-12-06 20:57:02,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-06 20:57:02,438 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-06 20:57:02,438 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-06 20:57:02,438 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 20:57:02,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-12-06 20:57:02,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 20:57:02,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:57:02,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:57:02,439 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 20:57:02,439 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 20:57:02,440 INFO L791 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 32#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 30#L10-2 [2021-12-06 20:57:02,440 INFO L793 eck$LassoCheckResult]: Loop: 30#L10-2 assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 28#L12-2 assume !!(main_~j~0#1 < 1);main_~j~0#1 := 1 + main_~j~0#1; 29#L12-2 assume !(main_~j~0#1 < 1); 33#L12-3 main_~i~0#1 := main_~i~0#1; 30#L10-2 [2021-12-06 20:57:02,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:57:02,441 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-06 20:57:02,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:57:02,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953196131] [2021-12-06 20:57:02,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:57:02,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:57:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:57:02,447 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:57:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:57:02,450 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:57:02,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:57:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2021-12-06 20:57:02,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:57:02,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292308894] [2021-12-06 20:57:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:57:02,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:57:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:57:02,461 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:57:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:57:02,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:57:02,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:57:02,469 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2021-12-06 20:57:02,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:57:02,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816021637] [2021-12-06 20:57:02,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:57:02,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:57:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:57:02,478 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:57:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:57:02,485 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:57:02,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 08:57:02 BoogieIcfgContainer [2021-12-06 20:57:02,571 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 20:57:02,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:57:02,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:57:02,572 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:57:02,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:57:02" (3/4) ... [2021-12-06 20:57:02,575 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-06 20:57:02,600 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 20:57:02,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:57:02,601 INFO L158 Benchmark]: Toolchain (without parser) took 859.01ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 53.8MB in the beginning and 77.5MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:57:02,602 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 94.4MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:57:02,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.49ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 71.7MB in the end (delta: -18.2MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2021-12-06 20:57:02,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.14ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 70.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:57:02,603 INFO L158 Benchmark]: Boogie Preprocessor took 11.39ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 69.3MB in the end (delta: 918.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:57:02,604 INFO L158 Benchmark]: RCFGBuilder took 148.99ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 61.9MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 20:57:02,604 INFO L158 Benchmark]: BuchiAutomizer took 493.54ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 61.6MB in the beginning and 79.0MB in the end (delta: -17.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2021-12-06 20:57:02,605 INFO L158 Benchmark]: Witness Printer took 28.98ms. Allocated memory is still 113.2MB. Free memory was 79.0MB in the beginning and 77.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:57:02,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 94.4MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 151.49ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 71.7MB in the end (delta: -18.2MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.14ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 70.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.39ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 69.3MB in the end (delta: 918.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 148.99ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 61.9MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 493.54ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 61.6MB in the beginning and 79.0MB in the end (delta: -17.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Witness Printer took 28.98ms. Allocated memory is still 113.2MB. Free memory was 79.0MB in the beginning and 77.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - 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 {j=1, i=0, \result=0} - 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] int j; [L8] i = 0 Loop: [L10] COND TRUE i < 100 [L11] j = 0 [L12] COND TRUE j < 1 [L13] j = j+1 [L12] COND FALSE !(j < 1) [L15] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-06 20:57:02,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84cf41f-572c-4801-b8e2-5d93b4eafe86/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)