./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/css2003.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/css2003.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cc40df30b48f0dde21200c49a8e3c2dcaea3151eb010f51f5a34e59bc04994b ..................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:46:22,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:46:22,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:46:22,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:46:22,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:46:22,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:46:22,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:46:22,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:46:22,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:46:22,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:46:22,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:46:22,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:46:22,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:46:22,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:46:22,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:46:22,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:46:22,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:46:22,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:46:22,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:46:22,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:46:22,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:46:22,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:46:22,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:46:22,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:46:22,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:46:22,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:46:22,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:46:22,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:46:22,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:46:22,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:46:22,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:46:22,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:46:22,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:46:22,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:46:22,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:46:22,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:46:22,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:46:22,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:46:22,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:46:22,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:46:22,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:46:22,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:46:22,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:46:22,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:46:22,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:46:22,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:46:22,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:46:22,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:46:22,749 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:46:22,749 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:46:22,749 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:46:22,750 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:46:22,751 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:46:22,751 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:46:22,751 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:46:22,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:46:22,752 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:46:22,752 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:46:22,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:46:22,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:46:22,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:46:22,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:46:22,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:46:22,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:46:22,754 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:46:22,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:46:22,754 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:46:22,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:46:22,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:46:22,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:46:22,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:46:22,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:46:22,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:46:22,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:46:22,758 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:46:22,758 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_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cc40df30b48f0dde21200c49a8e3c2dcaea3151eb010f51f5a34e59bc04994b [2021-10-21 19:46:23,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:46:23,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:46:23,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:46:23,121 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:46:23,123 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:46:23,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loop-lit/css2003.i [2021-10-21 19:46:23,231 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/data/6f8fc4a36/9aa5e320cf904ba496a32001fd900bbc/FLAG8524d42f2 [2021-10-21 19:46:23,762 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:46:23,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/sv-benchmarks/c/loop-lit/css2003.i [2021-10-21 19:46:23,770 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/data/6f8fc4a36/9aa5e320cf904ba496a32001fd900bbc/FLAG8524d42f2 [2021-10-21 19:46:24,119 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/data/6f8fc4a36/9aa5e320cf904ba496a32001fd900bbc [2021-10-21 19:46:24,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:46:24,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:46:24,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:46:24,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:46:24,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:46:24,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cad3f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24, skipping insertion in model container [2021-10-21 19:46:24,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:46:24,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:46:24,364 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/sv-benchmarks/c/loop-lit/css2003.i[895,908] [2021-10-21 19:46:24,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:46:24,385 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:46:24,399 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/sv-benchmarks/c/loop-lit/css2003.i[895,908] [2021-10-21 19:46:24,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:46:24,419 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:46:24,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24 WrapperNode [2021-10-21 19:46:24,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:46:24,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:46:24,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:46:24,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:46:24,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:46:24,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:46:24,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:46:24,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:46:24,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:46:24,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:46:24,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:46:24,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:46:24,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (1/1) ... [2021-10-21 19:46:24,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:46:24,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:24,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:46:24,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:46:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:46:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:46:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:46:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:46:24,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:46:24,859 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:46:24,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:46:24 BoogieIcfgContainer [2021-10-21 19:46:24,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:46:24,862 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:46:24,863 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:46:24,867 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:46:24,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:46:24,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:46:24" (1/3) ... [2021-10-21 19:46:24,870 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ff2e8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:46:24, skipping insertion in model container [2021-10-21 19:46:24,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:46:24,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:24" (2/3) ... [2021-10-21 19:46:24,871 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ff2e8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:46:24, skipping insertion in model container [2021-10-21 19:46:24,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:46:24,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:46:24" (3/3) ... [2021-10-21 19:46:24,873 INFO L389 chiAutomizerObserver]: Analyzing ICFG css2003.i [2021-10-21 19:46:24,939 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:46:24,940 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:46:24,940 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:46:24,940 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:46:24,940 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:46:24,940 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:46:24,941 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:46:24,941 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:46:24,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:24,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:46:24,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:46:24,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:46:24,988 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:46:24,988 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:46:24,988 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:46:24,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:24,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:46:24,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:46:24,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:46:24,991 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:46:24,991 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:46:24,997 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 9#L-1true havoc main_#res;havoc main_#t~nondet3, main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 1;main_~j~0 := 1;main_~k~0 := main_#t~nondet3;havoc main_#t~nondet3; 8#L29true assume !!(0 <= main_~k~0 && main_~k~0 <= 1); 7#L18-2true [2021-10-21 19:46:24,997 INFO L793 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~i~0 < 1000000);main_~i~0 := 1 + main_~i~0;main_~j~0 := main_~j~0 + main_~k~0;main_~k~0 := main_~k~0 - 1;__VERIFIER_assert_#in~cond := (if (1 <= main_~i~0 + main_~k~0 && main_~i~0 + main_~k~0 <= 2) && main_~i~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5#L18true assume !(0 == __VERIFIER_assert_~cond); 7#L18-2true [2021-10-21 19:46:25,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:25,003 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-21 19:46:25,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:25,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964930308] [2021-10-21 19:46:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:25,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:25,126 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:46:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:25,171 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:46:25,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:25,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1480, now seen corresponding path program 1 times [2021-10-21 19:46:25,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:25,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376430117] [2021-10-21 19:46:25,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:25,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:25,192 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:46:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:25,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:46:25,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:25,209 INFO L82 PathProgramCache]: Analyzing trace with hash 28695979, now seen corresponding path program 1 times [2021-10-21 19:46:25,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:25,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513648398] [2021-10-21 19:46:25,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:25,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:25,256 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:46:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:25,320 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:46:25,625 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:46:25,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:46:25,627 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:46:25,627 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:46:25,627 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:46:25,627 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:46:25,628 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:46:25,628 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:46:25,628 INFO L133 ssoRankerPreferences]: Filename of dumped script: css2003.i_Iteration1_Loop [2021-10-21 19:46:25,628 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:46:25,629 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:46:25,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:46:25,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:46:25,835 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:46:25,836 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:46:25,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:46:25,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:25,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:46:25,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:46:25,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:46:25,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:46:25,879 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:46:25,879 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:46:25,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:25,928 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:46:25,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:25,931 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:46:25,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:46:25,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:46:25,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:46:26,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:26,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:46:26,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:26,010 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:46:26,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:46:26,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:46:26,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:46:26,095 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:46:26,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:26,106 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:46:26,107 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:46:26,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:46:26,107 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:46:26,107 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:46:26,107 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:46:26,107 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:46:26,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:46:26,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: css2003.i_Iteration1_Loop [2021-10-21 19:46:26,108 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:46:26,108 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:46:26,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:46:26,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:46:26,221 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:46:26,227 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:46:26,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:46:26,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:26,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:46:26,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:46:26,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:46:26,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:46:26,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:46:26,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:46:26,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:46:26,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:46:26,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:46:26,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:46:26,275 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:46:26,281 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:46:26,281 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:46:26,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:46:26,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:26,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:46:26,295 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:46:26,296 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:46:26,296 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:46:26,297 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 1999999 Supporting invariants [] [2021-10-21 19:46:26,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:46:26,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:26,349 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:46:26,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:26,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:46:26,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:26,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:46:26,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:26,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:46:26,540 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:46:26,542 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:26,582 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 28 states and 35 transitions. Complement of second has 5 states. [2021-10-21 19:46:26,583 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 [2021-10-21 19:46:26,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:26,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2021-10-21 19:46:26,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 19:46:26,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:46:26,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 19:46:26,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:46:26,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-21 19:46:26,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:46:26,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-21 19:46:26,595 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:46:26,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2021-10-21 19:46:26,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:46:26,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:46:26,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:46:26,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:46:26,600 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:46:26,601 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:46:26,601 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:46:26,601 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:46:26,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:46:26,601 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:46:26,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:46:26,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:46:26 BoogieIcfgContainer [2021-10-21 19:46:26,608 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:46:26,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:46:26,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:46:26,609 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:46:26,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:46:24" (3/4) ... [2021-10-21 19:46:26,613 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:46:26,613 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:46:26,615 INFO L168 Benchmark]: Toolchain (without parser) took 2490.06 ms. Allocated memory is still 102.8 MB. Free memory was 66.8 MB in the beginning and 56.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:26,616 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 102.8 MB. Free memory is still 82.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:26,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.29 ms. Allocated memory is still 102.8 MB. Free memory was 66.6 MB in the beginning and 79.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:26,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.18 ms. Allocated memory is still 102.8 MB. Free memory was 79.3 MB in the beginning and 78.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:26,619 INFO L168 Benchmark]: Boogie Preprocessor took 23.98 ms. Allocated memory is still 102.8 MB. Free memory was 78.1 MB in the beginning and 76.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:26,619 INFO L168 Benchmark]: RCFGBuilder took 370.12 ms. Allocated memory is still 102.8 MB. Free memory was 76.9 MB in the beginning and 68.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:26,620 INFO L168 Benchmark]: BuchiAutomizer took 1745.83 ms. Allocated memory is still 102.8 MB. Free memory was 68.1 MB in the beginning and 56.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:26,621 INFO L168 Benchmark]: Witness Printer took 4.67 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:26,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 102.8 MB. Free memory is still 82.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.29 ms. Allocated memory is still 102.8 MB. Free memory was 66.6 MB in the beginning and 79.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.18 ms. Allocated memory is still 102.8 MB. Free memory was 79.3 MB in the beginning and 78.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.98 ms. Allocated memory is still 102.8 MB. Free memory was 78.1 MB in the beginning and 76.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 370.12 ms. Allocated memory is still 102.8 MB. Free memory was 76.9 MB in the beginning and 68.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1745.83 ms. Allocated memory is still 102.8 MB. Free memory was 68.1 MB in the beginning and 56.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.67 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. 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 affine ranking function -2 * i + 1999999 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 11 SDtfs, 11 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital39 mio100 ax100 hnf100 lsp84 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf104 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 68ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:46:26,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:26,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a19117-6758-42e1-be0e-52efdc403ff3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...