./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-05.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_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/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_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/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_81ab2bf3-3940-4413-91a2-865743b9e549/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 15c56ee4019b96e5939a9d84c5e1e8c15f562a0c6bb3af9b30b9f79bceac4702 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:58:21,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:58:21,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:58:21,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:58:21,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:58:21,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:58:21,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:58:21,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:58:21,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:58:21,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:58:21,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:58:21,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:58:21,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:58:21,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:58:21,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:58:21,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:58:21,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:58:21,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:58:21,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:58:21,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:58:21,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:58:21,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:58:21,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:58:21,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:58:21,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:58:21,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:58:21,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:58:21,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:58:21,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:58:21,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:58:21,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:58:21,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:58:21,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:58:21,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:58:21,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:58:21,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:58:21,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:58:21,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:58:21,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:58:21,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:58:21,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:58:21,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-23 13:58:21,991 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:58:21,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:58:21,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:58:21,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:58:21,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:58:21,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:58:21,993 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:58:21,994 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 13:58:21,994 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 13:58:21,994 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 13:58:21,994 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 13:58:21,995 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 13:58:21,995 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 13:58:21,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:58:21,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:58:21,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:58:21,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:58:21,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 13:58:21,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 13:58:21,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 13:58:21,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:58:21,997 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 13:58:21,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:58:21,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 13:58:21,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:58:21,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:58:21,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:58:21,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:58:21,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:58:21,999 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 13:58:22,000 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_81ab2bf3-3940-4413-91a2-865743b9e549/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15c56ee4019b96e5939a9d84c5e1e8c15f562a0c6bb3af9b30b9f79bceac4702 [2021-11-23 13:58:22,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:58:22,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:58:22,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:58:22,324 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:58:22,325 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:58:22,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/termination-bwb/not-05.c [2021-11-23 13:58:22,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/data/8b50c9eb5/3f841cb74df74dcdbb1e29b51384dbb4/FLAG5db450e21 [2021-11-23 13:58:23,042 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:58:23,044 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/sv-benchmarks/c/termination-bwb/not-05.c [2021-11-23 13:58:23,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/data/8b50c9eb5/3f841cb74df74dcdbb1e29b51384dbb4/FLAG5db450e21 [2021-11-23 13:58:23,423 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/data/8b50c9eb5/3f841cb74df74dcdbb1e29b51384dbb4 [2021-11-23 13:58:23,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:58:23,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:58:23,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:58:23,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:58:23,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:58:23,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c4f0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23, skipping insertion in model container [2021-11-23 13:58:23,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:58:23,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:58:23,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:58:23,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:58:23,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:58:23,761 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:58:23,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23 WrapperNode [2021-11-23 13:58:23,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:58:23,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:58:23,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:58:23,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:58:23,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,795 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-23 13:58:23,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:58:23,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:58:23,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:58:23,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:58:23,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:58:23,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:58:23,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:58:23,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:58:23,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (1/1) ... [2021-11-23 13:58:23,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:23,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:23,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:23,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 13:58:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:58:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:58:23,958 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:58:23,961 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:58:24,053 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:58:24,061 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:58:24,061 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 13:58:24,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:24 BoogieIcfgContainer [2021-11-23 13:58:24,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:58:24,067 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 13:58:24,068 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 13:58:24,071 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 13:58:24,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:58:24,072 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:58:23" (1/3) ... [2021-11-23 13:58:24,074 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a33ac89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:58:24, skipping insertion in model container [2021-11-23 13:58:24,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:58:24,074 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:23" (2/3) ... [2021-11-23 13:58:24,075 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a33ac89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:58:24, skipping insertion in model container [2021-11-23 13:58:24,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:58:24,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:24" (3/3) ... [2021-11-23 13:58:24,076 INFO L388 chiAutomizerObserver]: Analyzing ICFG not-05.c [2021-11-23 13:58:24,139 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 13:58:24,139 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 13:58:24,139 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 13:58:24,139 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 13:58:24,139 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 13:58:24,139 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 13:58:24,139 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 13:58:24,140 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 13:58:24,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:24,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-23 13:58:24,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:58:24,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:58:24,187 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:58:24,187 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:58:24,187 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 13:58:24,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:24,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-23 13:58:24,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:58:24,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:58:24,190 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:58:24,191 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:58:24,198 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#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_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0; 7#L18-2true [2021-11-23 13:58:24,198 INFO L793 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~y~0#1 > 0); 5#L18true assume !(main_~x~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 7#L18-2true [2021-11-23 13:58:24,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:24,206 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-23 13:58:24,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:24,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395914571] [2021-11-23 13:58:24,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:24,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:24,309 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:58:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:24,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:58:24,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:24,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-11-23 13:58:24,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:24,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697464010] [2021-11-23 13:58:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:24,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:24,375 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:58:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:24,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:58:24,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:24,396 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-11-23 13:58:24,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:24,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713359965] [2021-11-23 13:58:24,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:24,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:24,403 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:58:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:24,410 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:58:24,513 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:58:24,514 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:58:24,514 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:58:24,514 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:58:24,515 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 13:58:24,515 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:24,515 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:58:24,515 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:58:24,515 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05.c_Iteration1_Loop [2021-11-23 13:58:24,516 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:58:24,516 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:58:24,534 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 13:58:24,542 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 13:58:24,586 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:58:24,587 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 13:58:24,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:24,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:24,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:24,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-23 13:58:24,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:58:24,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:58:24,688 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:58:24,689 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-23 13:58:24,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:24,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:24,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:24,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:24,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-23 13:58:24,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:58:24,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:58:24,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:24,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:24,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:24,808 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:24,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:58:24,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:58:24,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-23 13:58:24,899 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 13:58:24,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:24,907 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:58:24,907 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:58:24,907 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:58:24,907 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:58:24,907 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:58:24,908 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:24,908 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:58:24,908 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:58:24,908 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05.c_Iteration1_Loop [2021-11-23 13:58:24,908 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:58:24,908 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:58:24,910 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 13:58:24,924 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 13:58:24,980 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:58:24,986 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:58:24,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:24,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:24,992 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:25,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-23 13:58:25,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:58:25,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:58:25,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:58:25,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:58:25,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:58:25,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:58:25,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:58:25,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:58:25,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:58:25,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:25,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:25,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:25,087 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:25,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:58:25,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:58:25,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:58:25,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:58:25,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:58:25,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:58:25,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:58:25,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:58:25,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-23 13:58:25,127 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:58:25,135 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-23 13:58:25,135 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-23 13:58:25,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:25,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:25,143 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:25,175 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:58:25,175 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 13:58:25,175 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:58:25,176 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-11-23 13:58:25,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-23 13:58:25,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:25,216 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 13:58:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:25,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:58:25,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:58:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:25,288 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:58:25,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:58:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:25,384 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-23 13:58:25,386 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 13:58:25,446 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 8 states. [2021-11-23 13:58:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-23 13:58:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 13:58:25,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-11-23 13:58:25,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-23 13:58:25,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:58:25,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-23 13:58:25,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:58:25,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-23 13:58:25,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:58:25,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-11-23 13:58:25,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-23 13:58:25,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2021-11-23 13:58:25,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-11-23 13:58:25,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-23 13:58:25,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-11-23 13:58:25,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 13:58:25,541 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-23 13:58:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-11-23 13:58:25,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-23 13:58:25,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:25,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 13:58:25,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-11-23 13:58:25,610 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-23 13:58:25,610 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-23 13:58:25,611 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 13:58:25,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-11-23 13:58:25,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-23 13:58:25,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:58:25,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:58:25,613 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-23 13:58:25,613 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:58:25,614 INFO L791 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 77#L-1 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_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0; 79#L18-2 assume !!(main_~y~0#1 > 0); 72#L18 assume main_~x~0#1 > 0;main_~y~0#1 := ~bitwiseComplement(main_~x~0#1); 73#L18-2 [2021-11-23 13:58:25,614 INFO L793 eck$LassoCheckResult]: Loop: 73#L18-2 assume !!(main_~y~0#1 > 0); 78#L18 assume !(main_~x~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 73#L18-2 [2021-11-23 13:58:25,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:25,615 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-11-23 13:58:25,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:25,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035760099] [2021-11-23 13:58:25,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:25,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:25,628 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:58:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:25,635 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:58:25,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:25,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2021-11-23 13:58:25,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:25,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226465699] [2021-11-23 13:58:25,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:25,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:25,643 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:58:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:25,651 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:58:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:25,652 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2021-11-23 13:58:25,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:25,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099395317] [2021-11-23 13:58:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:25,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:25,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:25,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:58:25,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099395317] [2021-11-23 13:58:25,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099395317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:58:25,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:58:25,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:58:25,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117907493] [2021-11-23 13:58:25,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:58:25,755 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:58:25,756 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:58:25,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:58:25,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:58:25,761 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 13:58:25,761 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:25,762 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:58:25,762 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:58:25,762 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05.c_Iteration2_Loop [2021-11-23 13:58:25,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:58:25,763 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:58:25,765 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 13:58:25,777 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 13:58:25,812 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:58:25,816 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 13:58:25,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:25,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:25,818 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:25,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:58:25,825 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:58:25,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-23 13:58:25,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:25,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:25,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:25,892 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:25,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:58:25,898 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:58:25,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-23 13:58:25,951 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 13:58:25,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:25,957 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:58:25,957 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:58:25,957 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:58:25,957 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:58:25,957 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:58:25,957 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:25,957 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:58:25,957 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:58:25,957 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05.c_Iteration2_Loop [2021-11-23 13:58:25,957 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:58:25,958 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:58:25,958 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 13:58:25,965 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 13:58:25,990 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:58:25,990 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:58:25,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:25,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:25,992 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:26,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-23 13:58:26,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:58:26,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:58:26,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:58:26,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:58:26,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:58:26,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:58:26,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:58:26,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:58:26,055 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:58:26,073 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-23 13:58:26,073 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-23 13:58:26,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:58:26,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:26,076 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:58:26,091 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:58:26,091 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 13:58:26,091 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:58:26,091 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-11-23 13:58:26,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-23 13:58:26,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:26,134 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 13:58:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:26,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:58:26,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:58:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:26,169 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:58:26,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:58:26,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:26,188 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-23 13:58:26,189 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:58:26,201 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 5 states. [2021-11-23 13:58:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-23 13:58:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:58:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-11-23 13:58:26,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-23 13:58:26,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:58:26,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-23 13:58:26,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:58:26,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-11-23 13:58:26,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:58:26,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2021-11-23 13:58:26,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-23 13:58:26,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2021-11-23 13:58:26,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-23 13:58:26,208 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-23 13:58:26,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-11-23 13:58:26,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 13:58:26,209 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-23 13:58:26,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-11-23 13:58:26,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-23 13:58:26,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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 13:58:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-11-23 13:58:26,211 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-23 13:58:26,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:58:26,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:58:26,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:58:26,216 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:58:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:58:26,228 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-11-23 13:58:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:58:26,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-11-23 13:58:26,230 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-23 13:58:26,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2021-11-23 13:58:26,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-23 13:58:26,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-23 13:58:26,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2021-11-23 13:58:26,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 13:58:26,236 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-23 13:58:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2021-11-23 13:58:26,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2021-11-23 13:58:26,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:26,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-11-23 13:58:26,238 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-23 13:58:26,238 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-23 13:58:26,238 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 13:58:26,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-11-23 13:58:26,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-23 13:58:26,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:58:26,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:58:26,241 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-23 13:58:26,242 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:58:26,245 INFO L791 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 160#L-1 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_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0; 161#L18-2 assume !!(main_~y~0#1 > 0); 155#L18 [2021-11-23 13:58:26,246 INFO L793 eck$LassoCheckResult]: Loop: 155#L18 assume main_~x~0#1 > 0;main_~y~0#1 := ~bitwiseComplement(main_~x~0#1); 156#L18-2 assume !!(main_~y~0#1 > 0); 155#L18 [2021-11-23 13:58:26,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:26,247 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-23 13:58:26,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:26,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338271343] [2021-11-23 13:58:26,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:26,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:26,253 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:58:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:26,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:58:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:26,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2021-11-23 13:58:26,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:26,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100114239] [2021-11-23 13:58:26,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:26,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:26,262 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:58:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:26,265 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:58:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:26,265 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 2 times [2021-11-23 13:58:26,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:26,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962137703] [2021-11-23 13:58:26,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:26,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:26,270 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:58:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:58:26,274 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:58:26,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:58:26 BoogieIcfgContainer [2021-11-23 13:58:26,334 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 13:58:26,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:58:26,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:58:26,335 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:58:26,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:24" (3/4) ... [2021-11-23 13:58:26,339 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:58:26,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:58:26,340 INFO L158 Benchmark]: Toolchain (without parser) took 2908.38ms. Allocated memory is still 113.2MB. Free memory was 76.0MB in the beginning and 63.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 13:58:26,341 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:58:26,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.68ms. Allocated memory is still 113.2MB. Free memory was 75.8MB in the beginning and 89.5MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:58:26,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.28ms. Allocated memory is still 113.2MB. Free memory was 89.5MB in the beginning and 88.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:58:26,342 INFO L158 Benchmark]: Boogie Preprocessor took 14.45ms. Allocated memory is still 113.2MB. Free memory was 88.0MB in the beginning and 86.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:58:26,343 INFO L158 Benchmark]: RCFGBuilder took 251.49ms. Allocated memory is still 113.2MB. Free memory was 86.8MB in the beginning and 79.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:58:26,343 INFO L158 Benchmark]: BuchiAutomizer took 2267.27ms. Allocated memory is still 113.2MB. Free memory was 79.0MB in the beginning and 63.5MB in the end (delta: 15.5MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2021-11-23 13:58:26,344 INFO L158 Benchmark]: Witness Printer took 4.35ms. Allocated memory is still 113.2MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:58:26,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.68ms. Allocated memory is still 113.2MB. Free memory was 75.8MB in the beginning and 89.5MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.28ms. Allocated memory is still 113.2MB. Free memory was 89.5MB in the beginning and 88.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.45ms. Allocated memory is still 113.2MB. Free memory was 88.0MB in the beginning and 86.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 251.49ms. Allocated memory is still 113.2MB. Free memory was 86.8MB in the beginning and 79.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2267.27ms. Allocated memory is still 113.2MB. Free memory was 79.0MB in the beginning and 63.5MB in the end (delta: 15.5MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Witness Printer took 4.35ms. Allocated memory is still 113.2MB. Free memory is still 63.5MB. There was no memory consumed. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 54ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: ~x [19] (Reason bitwiseComplement) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0;" "assume !!(main_~y~0#1 > 0);" Loop: "assume main_~x~0#1 > 0;main_~y~0#1 := ~bitwiseComplement(main_~x~0#1);" "assume !!(main_~y~0#1 > 0);" RESULT: Ultimate could not prove your program: unable to determine termination [2021-11-23 13:58:26,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:26,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ab2bf3-3940-4413-91a2-865743b9e549/bin/uautomizer-wIGwrQj20G/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN