./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer --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 2b89ce5b96ce55081609675201b2a9a116c2941a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:01:31,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:01:31,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:01:31,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:01:31,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:01:31,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:01:31,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:01:31,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:01:31,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:01:31,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:01:31,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:01:31,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:01:31,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:01:31,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:01:31,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:01:31,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:01:31,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:01:31,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:01:31,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:01:31,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:01:31,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:01:31,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:01:31,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:01:31,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:01:31,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:01:31,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:01:31,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:01:31,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:01:31,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:01:31,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:01:31,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:01:31,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:01:31,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:01:31,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:01:31,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:01:31,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:01:31,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:01:31,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:01:31,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:01:31,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:01:31,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:01:31,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 01:01:31,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:01:31,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:01:31,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:01:31,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:01:31,872 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:01:31,873 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:01:31,873 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:01:31,873 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:01:31,873 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:01:31,874 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:01:31,874 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:01:31,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:01:31,875 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:01:31,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:01:31,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:01:31,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:01:31,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:01:31,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:01:31,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:01:31,884 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:01:31,884 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:01:31,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:01:31,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:01:31,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:01:31,885 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:01:31,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:01:31,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:01:31,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:01:31,886 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:01:31,887 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:01:31,888 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-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b89ce5b96ce55081609675201b2a9a116c2941a [2020-11-30 01:01:32,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:01:32,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:01:32,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:01:32,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:01:32,230 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:01:32,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Benghazi.c [2020-11-30 01:01:32,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/data/61467dc61/44bcec5930c54d89a54994b393527aad/FLAG41ab3d413 [2020-11-30 01:01:32,718 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:01:32,719 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/sv-benchmarks/c/termination-crafted/Benghazi.c [2020-11-30 01:01:32,724 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/data/61467dc61/44bcec5930c54d89a54994b393527aad/FLAG41ab3d413 [2020-11-30 01:01:33,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/data/61467dc61/44bcec5930c54d89a54994b393527aad [2020-11-30 01:01:33,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:01:33,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:01:33,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:01:33,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:01:33,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:01:33,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d5596b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33, skipping insertion in model container [2020-11-30 01:01:33,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:01:33,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:01:33,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:01:33,410 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:01:33,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:01:33,447 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:01:33,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33 WrapperNode [2020-11-30 01:01:33,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:01:33,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:01:33,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:01:33,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:01:33,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:01:33,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:01:33,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:01:33,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:01:33,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... [2020-11-30 01:01:33,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:01:33,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:01:33,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:01:33,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:01:33,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:01:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:01:33,750 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:01:33,751 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:01:33,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:01:33 BoogieIcfgContainer [2020-11-30 01:01:33,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:01:33,758 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:01:33,758 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:01:33,762 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:01:33,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:01:33,764 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:01:33" (1/3) ... [2020-11-30 01:01:33,766 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68008c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:01:33, skipping insertion in model container [2020-11-30 01:01:33,767 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:01:33,767 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:33" (2/3) ... [2020-11-30 01:01:33,767 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68008c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:01:33, skipping insertion in model container [2020-11-30 01:01:33,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:01:33,768 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:01:33" (3/3) ... [2020-11-30 01:01:33,769 INFO L373 chiAutomizerObserver]: Analyzing ICFG Benghazi.c [2020-11-30 01:01:33,840 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:01:33,840 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:01:33,840 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:01:33,840 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:01:33,840 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:01:33,840 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:01:33,841 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:01:33,841 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:01:33,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-30 01:01:33,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 01:01:33,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:01:33,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:01:33,881 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-30 01:01:33,881 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:01:33,881 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:01:33,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-30 01:01:33,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 01:01:33,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:01:33,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:01:33,883 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-30 01:01:33,883 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:01:33,890 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~d1~0 := 73;main_~d2~0 := 74;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L22-2true [2020-11-30 01:01:33,891 INFO L796 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 8#L22-2true [2020-11-30 01:01:33,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:33,899 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-30 01:01:33,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:33,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732050703] [2020-11-30 01:01:33,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:01:34,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:01:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:01:34,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:01:34,027 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:01:34,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:34,032 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-11-30 01:01:34,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:34,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455229749] [2020-11-30 01:01:34,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:01:34,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:01:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:01:34,078 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:01:34,080 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:01:34,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:34,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-30 01:01:34,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:34,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554736829] [2020-11-30 01:01:34,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:01:34,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:01:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:01:34,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:01:34,126 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:01:34,252 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:01:34,253 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:01:34,253 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:01:34,253 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:01:34,253 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 01:01:34,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:34,254 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:01:34,254 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:01:34,254 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2020-11-30 01:01:34,254 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:01:34,254 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:01:34,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:01:34,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:01:34,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:01:34,524 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:01:34,524 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:01:34,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:01:34,542 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:34,562 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:01:34,562 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:34,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:01:34,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 01:01:34,614 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:01:34,614 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:34,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:01:34,646 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:01:34,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 01:01:34,696 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:41,373 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 01:01:41,375 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:01:41,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:01:41,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:01:41,376 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:01:41,376 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:01:41,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:41,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:01:41,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:01:41,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2020-11-30 01:01:41,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:01:41,376 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:01:41,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:01:41,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:01:41,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:01:41,680 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:01:41,686 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:01:41,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:41,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:01:41,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:01:41,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:01:41,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:01:41,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:01:41,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:01:41,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:41,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:01:41,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:01:41,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:01:41,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:01:41,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:01:41,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:01:41,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:01:41,767 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:01:41,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:01:41,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:01:41,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:01:41,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:01:41,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:01:41,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:01:41,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:01:41,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:01:41,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:41,873 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:41,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:01:41,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:01:41,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:01:41,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:01:41,879 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 01:01:41,884 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-30 01:01:41,884 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-11-30 01:01:41,893 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:41,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:01:41,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:01:41,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:01:41,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:01:41,928 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 01:01:41,939 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-30 01:01:41,939 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-11-30 01:01:41,947 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:41,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:01:41,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:01:41,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:01:41,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:01:41,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:01:41,981 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-30 01:01:41,986 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-30 01:01:41,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:01:41,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-30 01:01:42,014 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:42,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:01:42,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:01:42,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:01:42,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:01:42,019 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 01:01:42,025 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-30 01:01:42,025 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-30 01:01:42,047 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:42,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:01:42,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:01:42,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:01:42,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:01:42,096 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 01:01:42,103 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-30 01:01:42,103 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-30 01:01:42,116 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:01:42,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:42,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:01:42,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:01:42,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:01:42,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:01:42,164 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-30 01:01:42,176 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 01:01:42,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:01:42,184 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:01:42,217 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 01:01:42,218 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3d724e1-b831-4d39-8b15-712314ba13e9/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:01:42,229 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:01:42,229 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 01:01:42,229 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:01:42,230 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d2~0 - 1*ULTIMATE.start_main_~d1~0 f1 = -1*ULTIMATE.start_main_~d1~0 + 2*ULTIMATE.start_main_~x~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:01:42,270 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 01:01:42,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:42,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:01:42,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:42,364 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:01:42,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:42,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:42,384 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-30 01:01:42,386 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-11-30 01:01:42,439 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-11-30 01:01:42,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:01:42,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-30 01:01:42,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-11-30 01:01:42,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-11-30 01:01:42,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:01:42,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-30 01:01:42,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:01:42,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-30 01:01:42,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:01:42,448 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-11-30 01:01:42,453 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:01:42,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-11-30 01:01:42,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 01:01:42,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 01:01:42,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 01:01:42,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:01:42,459 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:01:42,459 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:01:42,459 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:01:42,459 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:01:42,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:01:42,460 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:01:42,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 01:01:42,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:01:42 BoogieIcfgContainer [2020-11-30 01:01:42,467 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:01:42,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:01:42,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:01:42,472 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:01:42,473 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:01:33" (3/4) ... [2020-11-30 01:01:42,477 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:01:42,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:01:42,506 INFO L168 Benchmark]: Toolchain (without parser) took 9359.73 ms. Allocated memory is still 104.9 MB. Free memory was 85.4 MB in the beginning and 81.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 56.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:42,507 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:01:42,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.17 ms. Allocated memory is still 104.9 MB. Free memory was 85.1 MB in the beginning and 78.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:42,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 77.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:42,511 INFO L168 Benchmark]: Boogie Preprocessor took 20.68 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 76.6 MB in the end (delta: 649.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:01:42,513 INFO L168 Benchmark]: RCFGBuilder took 248.24 ms. Allocated memory is still 104.9 MB. Free memory was 76.3 MB in the beginning and 68.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:42,520 INFO L168 Benchmark]: BuchiAutomizer took 8709.56 ms. Allocated memory is still 104.9 MB. Free memory was 68.3 MB in the beginning and 31.5 MB in the end (delta: 36.7 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:42,520 INFO L168 Benchmark]: Witness Printer took 32.39 ms. Allocated memory is still 104.9 MB. Free memory was 31.5 MB in the beginning and 81.6 MB in the end (delta: -50.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:42,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.17 ms. Allocated memory is still 104.9 MB. Free memory was 85.1 MB in the beginning and 78.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 77.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.68 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 76.6 MB in the end (delta: 649.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 248.24 ms. Allocated memory is still 104.9 MB. Free memory was 76.3 MB in the beginning and 68.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8709.56 ms. Allocated memory is still 104.9 MB. Free memory was 68.3 MB in the beginning and 31.5 MB in the end (delta: 36.7 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. * Witness Printer took 32.39 ms. Allocated memory is still 104.9 MB. Free memory was 31.5 MB in the beginning and 81.6 MB in the end (delta: -50.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if -1 * d1 + 2 * x + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if -1 * d1 + 2 * x + 1 > 0 then -1 * d1 + 2 * x + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 8.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax148 hnf94 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...