./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC --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 1be465c325e488658b014d302be974cdfc478282 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:19:05,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:19:05,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:19:05,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:19:05,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:19:05,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:19:05,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:19:05,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:19:05,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:19:05,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:19:05,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:19:05,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:19:05,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:19:05,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:19:05,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:19:05,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:19:05,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:19:05,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:19:05,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:19:05,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:19:05,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:19:05,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:19:05,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:19:05,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:19:05,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:19:05,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:19:05,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:19:05,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:19:05,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:19:05,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:19:05,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:19:05,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:19:05,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:19:05,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:19:05,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:19:05,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:19:05,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:19:05,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:19:05,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:19:05,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:19:05,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:19:05,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:19:05,921 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:19:05,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:19:05,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:19:05,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:19:05,930 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:19:05,931 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:19:05,931 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:19:05,931 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:19:05,931 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:19:05,932 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:19:05,933 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:19:05,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:19:05,933 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:19:05,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:19:05,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:19:05,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:19:05,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:19:05,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:19:05,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:19:05,935 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:19:05,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:19:05,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:19:05,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:19:05,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:19:05,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:19:05,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:19:05,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:19:05,938 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:19:05,938 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_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1be465c325e488658b014d302be974cdfc478282 [2021-10-11 00:19:06,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:19:06,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:19:06,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:19:06,256 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:19:06,257 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:19:06,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-10-11 00:19:06,322 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/data/5bbc704d1/acf97993b31641aeb319c068d8920309/FLAGa45be3c9e [2021-10-11 00:19:06,884 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:19:06,884 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-10-11 00:19:06,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/data/5bbc704d1/acf97993b31641aeb319c068d8920309/FLAGa45be3c9e [2021-10-11 00:19:07,269 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/data/5bbc704d1/acf97993b31641aeb319c068d8920309 [2021-10-11 00:19:07,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:19:07,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:19:07,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:07,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:19:07,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:19:07,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b751924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07, skipping insertion in model container [2021-10-11 00:19:07,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:19:07,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:19:07,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:07,496 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:19:07,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:07,523 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:19:07,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07 WrapperNode [2021-10-11 00:19:07,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:07,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:07,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:19:07,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:19:07,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:07,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:19:07,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:19:07,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:19:07,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... [2021-10-11 00:19:07,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:19:07,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:19:07,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:19:07,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:19:07,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:19:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:19:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:19:07,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:19:07,849 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:19:07,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:07 BoogieIcfgContainer [2021-10-11 00:19:07,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:19:07,853 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:19:07,853 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:19:07,856 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:19:07,857 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:19:07,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:19:07" (1/3) ... [2021-10-11 00:19:07,859 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b19c119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:19:07, skipping insertion in model container [2021-10-11 00:19:07,859 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:19:07,859 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:07" (2/3) ... [2021-10-11 00:19:07,860 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b19c119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:19:07, skipping insertion in model container [2021-10-11 00:19:07,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:19:07,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:07" (3/3) ... [2021-10-11 00:19:07,861 INFO L389 chiAutomizerObserver]: Analyzing ICFG Benghazi_nondet-2.c [2021-10-11 00:19:07,938 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:19:07,939 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:19:07,939 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:19:07,939 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:19:07,939 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:19:07,939 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:19:07,939 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:19:07,939 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:19:07,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2021-10-11 00:19:07,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:19:07,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:19:07,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:19:07,976 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-11 00:19:07,976 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:19:07,976 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:19:07,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2021-10-11 00:19:07,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:19:07,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:19:07,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:19:07,979 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-11 00:19:07,979 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:19:07,986 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, 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_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~d1~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d2~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L18true assume !!(-1048575 <= main_~x~0 && main_~x~0 <= 1048575); 8#L19true assume !!(-1048575 <= main_~d1~0 && main_~d1~0 <= 1048575); 11#L20true assume !!(-1048575 <= main_~d2~0 && main_~d2~0 <= 1048575); 10#L21-2true [2021-10-11 00:19:07,986 INFO L796 eck$LassoCheckResult]: Loop: 10#L21-2true 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; 10#L21-2true [2021-10-11 00:19:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:07,991 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2021-10-11 00:19:07,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:07,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468405435] [2021-10-11 00:19:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:08,062 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:08,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:08,084 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:19:08,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:08,085 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-10-11 00:19:08,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:08,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419371301] [2021-10-11 00:19:08,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:08,097 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:08,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:08,104 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:19:08,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:08,106 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2021-10-11 00:19:08,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:08,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565042634] [2021-10-11 00:19:08,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:08,118 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:08,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:08,130 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:19:08,201 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:19:08,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:19:08,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:19:08,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:19:08,203 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:19:08,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:08,203 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:19:08,203 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:19:08,203 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-10-11 00:19:08,203 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:19:08,204 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:19:08,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:19:08,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:19:08,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:19:08,406 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:19:08,407 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:19:08,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:08,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:19:08,438 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:19:08,438 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_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:19:08,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:19:08,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:19:08,476 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:19:08,476 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_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:19:08,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:19:08,501 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:08,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:19:08,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:19:12,525 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:19:12,527 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:19:12,527 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:19:12,527 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:19:12,527 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:19:12,527 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:19:12,527 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:12,527 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:19:12,527 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:19:12,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-10-11 00:19:12,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:19:12,528 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:19:12,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:19:12,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:19:12,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:19:12,689 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:19:12,694 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:19:12,729 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 [2021-10-11 00:19:12,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:19:12,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:19:12,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:19:12,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:19:12,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:19:12,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:19:12,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:12,767 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:19:12,837 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:12,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:19:12,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:19:12,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:19:12,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:19:12,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:19:12,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:19:12,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:12,909 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 [2021-10-11 00:19:12,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:19:12,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:19:12,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:19:12,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:19:12,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:19:12,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:19:12,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-11 00:19:12,983 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:19:12,991 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 [2021-10-11 00:19:12,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:19:12,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:19:12,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:19:12,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:19:12,995 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-11 00:19:13,000 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-11 00:19:13,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:13,036 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:19:13,076 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 [2021-10-11 00:19:13,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:19:13,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:19:13,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:19:13,079 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-11 00:19:13,085 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-11 00:19:13,085 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:13,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:19:13,152 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 [2021-10-11 00:19:13,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:19:13,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:19:13,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:19:13,156 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-11 00:19:13,161 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-11 00:19:13,161 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-11 00:19:13,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-11 00:19:13,215 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:19:13,224 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 [2021-10-11 00:19:13,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:19:13,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:19:13,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:19:13,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:19:13,228 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-11 00:19:13,234 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-11 00:19:13,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:13,255 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:19:13,270 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-11 00:19:13,270 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_worker_vcloud-master_on_vcloud-master/run_dir_60efacc9-2374-4350-996f-d982bb1d11a7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:19:13,296 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:19:13,296 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:19:13,296 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:19:13,297 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d1~0 - 1*ULTIMATE.start_main_~d2~0 f1 = 2*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~d1~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:19:13,323 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:19:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:13,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:19:13,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:13,422 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:19:13,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:13,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:13,447 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 [2021-10-11 00:19:13,448 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2021-10-11 00:19:13,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2021-10-11 00:19:13,486 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 [2021-10-11 00:19:13,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:19:13,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-11 00:19:13,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-11 00:19:13,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:19:13,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-11 00:19:13,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:19:13,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-11 00:19:13,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:19:13,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2021-10-11 00:19:13,500 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:19:13,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2021-10-11 00:19:13,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:19:13,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:19:13,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:19:13,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:19:13,506 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:19:13,506 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:19:13,506 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:19:13,506 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:19:13,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:19:13,507 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:19:13,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:19:13,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:19:13 BoogieIcfgContainer [2021-10-11 00:19:13,516 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:19:13,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:19:13,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:19:13,518 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:19:13,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:07" (3/4) ... [2021-10-11 00:19:13,523 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:19:13,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:19:13,528 INFO L168 Benchmark]: Toolchain (without parser) took 6249.57 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 80.4 MB in the beginning and 79.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:13,529 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 119.5 MB. Free memory was 96.6 MB in the beginning and 96.5 MB in the end (delta: 61.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:19:13,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.90 ms. Allocated memory is still 119.5 MB. Free memory was 80.2 MB in the beginning and 95.1 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:13,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.73 ms. Allocated memory is still 119.5 MB. Free memory was 95.1 MB in the beginning and 94.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:19:13,532 INFO L168 Benchmark]: Boogie Preprocessor took 22.42 ms. Allocated memory is still 119.5 MB. Free memory was 94.0 MB in the beginning and 93.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:13,534 INFO L168 Benchmark]: RCFGBuilder took 274.26 ms. Allocated memory is still 119.5 MB. Free memory was 93.0 MB in the beginning and 83.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:13,540 INFO L168 Benchmark]: BuchiAutomizer took 5664.10 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 83.5 MB in the beginning and 79.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:13,541 INFO L168 Benchmark]: Witness Printer took 6.02 ms. Allocated memory is still 144.7 MB. Free memory is still 79.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:19:13,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 119.5 MB. Free memory was 96.6 MB in the beginning and 96.5 MB in the end (delta: 61.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 246.90 ms. Allocated memory is still 119.5 MB. Free memory was 80.2 MB in the beginning and 95.1 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.73 ms. Allocated memory is still 119.5 MB. Free memory was 95.1 MB in the beginning and 94.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.42 ms. Allocated memory is still 119.5 MB. Free memory was 94.0 MB in the beginning and 93.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 274.26 ms. Allocated memory is still 119.5 MB. Free memory was 93.0 MB in the beginning and 83.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5664.10 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 83.5 MB in the beginning and 79.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * Witness Printer took 6.02 ms. Allocated memory is still 144.7 MB. Free memory is still 79.2 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 3-nested ranking function (if -1 * d1 + -1 * d2 > 0 then 2 else (if 2 * x + -1 * d1 + 1 > 0 then 1 else 0)), (if -1 * d1 + -1 * d2 > 0 then -1 * d1 + -1 * d2 else (if 2 * x + -1 * d1 + 1 > 0 then 2 * x + -1 * d1 + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 5.3s. 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: 12 SDtfs, 12 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: inital23 mio100 ax152 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...