./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Flip.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Flip.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G --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 d9e2051c5b6571a6a73804cb724a9fb9a88e5e404b5e850e3a8c166e2eba4aad --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:09:42,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:09:42,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:09:42,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:09:42,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:09:42,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:09:42,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:09:42,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:09:42,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:09:42,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:09:42,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:09:42,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:09:42,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:09:42,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:09:42,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:09:42,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:09:42,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:09:42,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:09:42,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:09:42,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:09:42,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:09:42,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:09:42,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:09:42,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:09:43,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:09:43,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:09:43,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:09:43,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:09:43,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:09:43,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:09:43,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:09:43,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:09:43,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:09:43,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:09:43,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:09:43,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:09:43,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:09:43,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:09:43,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:09:43,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:09:43,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:09:43,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-23 14:09:43,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:09:43,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:09:43,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:09:43,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:09:43,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:09:43,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:09:43,091 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:09:43,091 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 14:09:43,091 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 14:09:43,092 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 14:09:43,092 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 14:09:43,092 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 14:09:43,092 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 14:09:43,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:09:43,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 14:09:43,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:09:43,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:09:43,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 14:09:43,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 14:09:43,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 14:09:43,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:09:43,095 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 14:09:43,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:09:43,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 14:09:43,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:09:43,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:09:43,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:09:43,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:09:43,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:09:43,098 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 14:09:43,098 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_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9e2051c5b6571a6a73804cb724a9fb9a88e5e404b5e850e3a8c166e2eba4aad [2021-11-23 14:09:43,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:09:43,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:09:43,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:09:43,517 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:09:43,518 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:09:43,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/termination-restricted-15/Flip.c [2021-11-23 14:09:43,591 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/data/b02e73b4f/692db340a18e4815b77903f441aabb47/FLAG4ec0dca77 [2021-11-23 14:09:44,151 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:09:44,152 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/sv-benchmarks/c/termination-restricted-15/Flip.c [2021-11-23 14:09:44,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/data/b02e73b4f/692db340a18e4815b77903f441aabb47/FLAG4ec0dca77 [2021-11-23 14:09:44,503 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/data/b02e73b4f/692db340a18e4815b77903f441aabb47 [2021-11-23 14:09:44,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:09:44,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:09:44,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:09:44,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:09:44,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:09:44,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ddbf78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44, skipping insertion in model container [2021-11-23 14:09:44,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:09:44,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:09:44,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:09:44,834 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:09:44,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:09:44,871 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:09:44,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44 WrapperNode [2021-11-23 14:09:44,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:09:44,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:09:44,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:09:44,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:09:44,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,913 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-23 14:09:44,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:09:44,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:09:44,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:09:44,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:09:44,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:09:44,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:09:44,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:09:44,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:09:44,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (1/1) ... [2021-11-23 14:09:44,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:09:44,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:44,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:09:45,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 14:09:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:09:45,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:09:45,124 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:09:45,127 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:09:45,205 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:09:45,213 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:09:45,213 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 14:09:45,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:45 BoogieIcfgContainer [2021-11-23 14:09:45,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:09:45,218 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 14:09:45,218 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 14:09:45,222 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 14:09:45,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:09:45,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:09:44" (1/3) ... [2021-11-23 14:09:45,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@191c655f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:09:45, skipping insertion in model container [2021-11-23 14:09:45,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:09:45,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:44" (2/3) ... [2021-11-23 14:09:45,228 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@191c655f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:09:45, skipping insertion in model container [2021-11-23 14:09:45,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:09:45,229 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:45" (3/3) ... [2021-11-23 14:09:45,231 INFO L388 chiAutomizerObserver]: Analyzing ICFG Flip.c [2021-11-23 14:09:45,302 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 14:09:45,302 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 14:09:45,302 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 14:09:45,303 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 14:09:45,303 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 14:09:45,303 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 14:09:45,304 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 14:09:45,304 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 14:09:45,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-11-23 14:09:45,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 14:09:45,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:09:45,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:09:45,353 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 14:09:45,353 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-23 14:09:45,354 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 14:09:45,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-11-23 14:09:45,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 14:09:45,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:09:45,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:09:45,357 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 14:09:45,357 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-23 14:09:45,365 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1, main_~t~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~t~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~t~0#1 := 0; 5#L13-2true [2021-11-23 14:09:45,366 INFO L793 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(0 != main_~i~0#1 && 0 != main_~j~0#1);main_~t~0#1 := main_~i~0#1;main_~i~0#1 := main_~j~0#1;main_~j~0#1 := main_~t~0#1; 5#L13-2true [2021-11-23 14:09:45,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:45,373 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-23 14:09:45,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:45,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240972268] [2021-11-23 14:09:45,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:45,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:09:45,479 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:09:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:09:45,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:09:45,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-23 14:09:45,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:45,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090464120] [2021-11-23 14:09:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:45,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:09:45,547 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:09:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:09:45,569 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:09:45,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:45,586 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-23 14:09:45,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:45,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407133562] [2021-11-23 14:09:45,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:45,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:09:45,598 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:09:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:09:45,609 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:09:45,742 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 14:09:45,743 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 14:09:45,743 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 14:09:45,743 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 14:09:45,744 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 14:09:45,744 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:09:45,744 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 14:09:45,745 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 14:09:45,745 INFO L133 ssoRankerPreferences]: Filename of dumped script: Flip.c_Iteration1_Lasso [2021-11-23 14:09:45,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 14:09:45,745 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 14:09:45,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:09:45,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:09:45,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:09:45,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:09:45,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:09:45,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:09:46,113 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 14:09:46,114 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 14:09:46,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:09:46,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:46,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:09:46,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:09:46,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:09:46,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-23 14:09:46,152 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 14:09:46,153 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: [] [2021-11-23 14:09:46,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:46,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:09:46,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:46,181 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:09:46,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:09:46,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:09:46,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-23 14:09:46,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:46,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:09:46,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:46,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:09:46,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 14:09:46,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:09:46,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-23 14:09:46,469 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 14:09:46,469 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=0, ULTIMATE.start_main_~t~0#1=0, ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~i~0#1=-7, ULTIMATE.start_main_~t~0#1=0, ULTIMATE.start_main_~j~0#1=-7} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0#1=0, ULTIMATE.start_main_~t~0#1=0, ULTIMATE.start_main_~j~0#1=0}, {ULTIMATE.start_main_~i~0#1=0, ULTIMATE.start_main_~t~0#1=-7, ULTIMATE.start_main_~j~0#1=0}, {ULTIMATE.start_main_~i~0#1=0, ULTIMATE.start_main_~t~0#1=0, ULTIMATE.start_main_~j~0#1=0}] Lambdas: [13, 0, 11] Nus: [0, 0] [2021-11-23 14:09:46,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:46,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:09:46,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:46,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:09:46,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-23 14:09:46,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:09:46,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:09:46,556 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 14:09:46,556 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-23 14:09:46,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:46,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:09:46,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:46,600 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:09:46,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-23 14:09:46,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:09:46,607 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:09:46,622 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 14:09:46,623 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: [] [2021-11-23 14:09:46,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:46,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:09:46,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:46,663 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:09:46,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-23 14:09:46,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:09:46,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:09:46,690 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 14:09:46,690 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-23 14:09:46,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-23 14:09:46,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:09:46,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:46,716 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:09:46,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-23 14:09:46,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:09:46,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:09:46,731 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 14:09:46,731 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-23 14:09:46,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:46,761 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-23 14:09:46,762 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-23 14:09:46,763 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-23 14:09:46,763 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-23 14:09:46,764 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-23 14:09:46,764 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-23 14:09:46,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:09:46 BoogieIcfgContainer [2021-11-23 14:09:46,775 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 14:09:46,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 14:09:46,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 14:09:46,776 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 14:09:46,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:45" (3/4) ... [2021-11-23 14:09:46,780 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-23 14:09:46,812 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 14:09:46,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 14:09:46,814 INFO L158 Benchmark]: Toolchain (without parser) took 2305.66ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 56.2MB in the beginning and 81.4MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:09:46,814 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 72.1MB in the beginning and 72.0MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:09:46,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.38ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 55.9MB in the beginning and 96.7MB in the end (delta: -40.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-23 14:09:46,816 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.94ms. Allocated memory is still 119.5MB. Free memory was 96.4MB in the beginning and 95.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:09:46,817 INFO L158 Benchmark]: Boogie Preprocessor took 22.94ms. Allocated memory is still 119.5MB. Free memory was 95.2MB in the beginning and 94.4MB in the end (delta: 728.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:09:46,817 INFO L158 Benchmark]: RCFGBuilder took 277.11ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 87.0MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 14:09:46,818 INFO L158 Benchmark]: BuchiAutomizer took 1557.31ms. Allocated memory is still 119.5MB. Free memory was 86.8MB in the beginning and 83.1MB in the end (delta: 3.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 14:09:46,818 INFO L158 Benchmark]: Witness Printer took 36.56ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 81.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:09:46,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 72.1MB in the beginning and 72.0MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.38ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 55.9MB in the beginning and 96.7MB in the end (delta: -40.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.94ms. Allocated memory is still 119.5MB. Free memory was 96.4MB in the beginning and 95.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.94ms. Allocated memory is still 119.5MB. Free memory was 95.2MB in the beginning and 94.4MB in the end (delta: 728.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.11ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 87.0MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1557.31ms. Allocated memory is still 119.5MB. Free memory was 86.8MB in the beginning and 83.1MB in the end (delta: 3.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 36.56ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 81.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax161 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq214 hnf93 smp100 dnf276 smp100 tf100 neg93 sie114 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 13]: Nontermination argument in form of an infinite program execution. [2021-11-23 14:09:46,831 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-23 14:09:46,831 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-23 14:09:46,832 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-23 14:09:46,832 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-23 14:09:46,833 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-23 14:09:46,833 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-23 14:09:46,834 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-23 14:09:46,834 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-23 14:09:46,835 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-23 14:09:46,835 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-23 14:09:46,836 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-23 14:09:46,836 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {j=0, i=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19f9b181=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a200e9b=0, ~unnamed0~0~false=0, t=0} State at position 1 is {j=-7, i=-7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19f9b181=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a200e9b=0, ~unnamed0~0~false=0, t=0} For i>1, the state at position i is {j=-7 + sum_{k=0}^i 0, i=-7 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19f9b181=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a200e9b=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, t=0 + sum_{k=0}^i -7*0^k} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [13, 0, 11] Mus: [0, 0] - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 Loop: [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 14:09:46,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc37b169-46a9-4a8e-a243-81ebca427c0a/bin/uautomizer-wIGwrQj20G/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)