./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/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_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/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 32bit --witnessprinter.graph.data.programhash c7eba07debb0aad75be3d6c81175278352db792c ......................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:31:04,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:31:04,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:31:04,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:31:04,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:31:04,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:31:04,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:31:04,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:31:04,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:31:04,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:31:04,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:31:04,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:31:04,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:31:04,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:31:04,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:31:04,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:31:04,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:31:04,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:31:04,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:31:04,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:31:04,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:31:04,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:31:04,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:31:04,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:31:04,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:31:04,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:31:04,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:31:04,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:31:04,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:31:04,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:31:04,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:31:04,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:31:04,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:31:04,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:31:04,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:31:04,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:31:04,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:31:04,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:31:04,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:31:04,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:31:04,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:31:04,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:31:04,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:31:04,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:31:04,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:31:04,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:31:04,765 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:31:04,765 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:31:04,766 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:31:04,766 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:31:04,766 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:31:04,766 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:31:04,767 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:31:04,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:31:04,767 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:31:04,767 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:31:04,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:31:04,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:31:04,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:31:04,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:31:04,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:31:04,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:31:04,769 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:31:04,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:31:04,769 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:31:04,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:31:04,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:31:04,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:31:04,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:31:04,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:31:04,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:31:04,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:31:04,772 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:31:04,772 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_8865e7fd-b382-497e-b5df-af2bbd074715/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7eba07debb0aad75be3d6c81175278352db792c [2021-10-11 00:31:05,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:31:05,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:31:05,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:31:05,067 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:31:05,068 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:31:05,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/ldv-regression/test_while_int.i [2021-10-11 00:31:05,170 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC/data/5d86a8657/a436e0aed865481e80fa88e77bdc5bf4/FLAGb52f79493 [2021-10-11 00:31:05,713 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:31:05,713 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/sv-benchmarks/c/ldv-regression/test_while_int.i [2021-10-11 00:31:05,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC/data/5d86a8657/a436e0aed865481e80fa88e77bdc5bf4/FLAGb52f79493 [2021-10-11 00:31:06,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/bin/uautomizer-Z5i5R5N3CC/data/5d86a8657/a436e0aed865481e80fa88e77bdc5bf4 [2021-10-11 00:31:06,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:31:06,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:31:06,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:06,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:31:06,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:31:06,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb7f623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06, skipping insertion in model container [2021-10-11 00:31:06,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:31:06,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:31:06,269 WARN L226 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_8865e7fd-b382-497e-b5df-af2bbd074715/sv-benchmarks/c/ldv-regression/test_while_int.i[296,309] [2021-10-11 00:31:06,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:06,322 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:31:06,341 WARN L226 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_8865e7fd-b382-497e-b5df-af2bbd074715/sv-benchmarks/c/ldv-regression/test_while_int.i[296,309] [2021-10-11 00:31:06,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:06,366 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:31:06,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06 WrapperNode [2021-10-11 00:31:06,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:06,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:06,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:31:06,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:31:06,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:06,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:31:06,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:31:06,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:31:06,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... [2021-10-11 00:31:06,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:31:06,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:31:06,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:31:06,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:31:06,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/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 00:31:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:31:06,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:31:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:31:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:31:06,801 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:31:06,802 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 00:31:06,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:06 BoogieIcfgContainer [2021-10-11 00:31:06,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:31:06,805 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:31:06,805 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:31:06,810 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:31:06,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:06,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:31:06" (1/3) ... [2021-10-11 00:31:06,813 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1567e513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:31:06, skipping insertion in model container [2021-10-11 00:31:06,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:06,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:06" (2/3) ... [2021-10-11 00:31:06,814 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1567e513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:31:06, skipping insertion in model container [2021-10-11 00:31:06,814 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:06,814 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:06" (3/3) ... [2021-10-11 00:31:06,816 INFO L389 chiAutomizerObserver]: Analyzing ICFG test_while_int.i [2021-10-11 00:31:06,886 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:31:06,886 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:31:06,887 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:31:06,887 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:31:06,887 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:31:06,887 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:31:06,887 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:31:06,888 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:31:06,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2021-10-11 00:31:06,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-11 00:31:06,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:06,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:06,931 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:31:06,932 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:31:06,932 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:31:06,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2021-10-11 00:31:06,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-11 00:31:06,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:06,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:06,935 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:31:06,935 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:31:06,944 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(17);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 3#L-1true havoc main_#res;havoc main_#t~post7, main_~i~0;main_~i~0 := 0; 5#L6true [2021-10-11 00:31:06,945 INFO L796 eck$LassoCheckResult]: Loop: 5#L6true assume !!(main_~i~0 < 5);main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7;check_error_#in~b := (if 3 != main_~i~0 then 1 else 0);havoc check_error_~b;check_error_~b := check_error_#in~b; 11#L20true assume 0 != check_error_~b; 5#L6true [2021-10-11 00:31:06,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:06,952 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-11 00:31:06,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:06,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858604130] [2021-10-11 00:31:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:07,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:07,166 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:07,196 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:07,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:07,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2021-10-11 00:31:07,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:07,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408786720] [2021-10-11 00:31:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:07,234 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:07,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:07,259 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:07,264 INFO L82 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-10-11 00:31:07,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:07,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072753612] [2021-10-11 00:31:07,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:07,303 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:07,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:07,352 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:07,573 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2021-10-11 00:31:07,588 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:07,588 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:07,589 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:07,589 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:07,589 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:31:07,589 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:07,589 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:07,589 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:07,590 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2021-10-11 00:31:07,590 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:07,590 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:07,606 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 00:31:07,613 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 00:31:07,622 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 00:31:07,780 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:07,781 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/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 00:31:07,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:07,790 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:07,805 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:07,805 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/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 00:31:07,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:07,829 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:07,839 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:07,839 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_check_error_#in~b=1, ULTIMATE.start_check_error_~b=1} Honda state: {ULTIMATE.start_check_error_#in~b=1, ULTIMATE.start_check_error_~b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/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 00:31:07,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:07,873 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/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 00:31:07,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:31:07,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:07,975 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:31:07,982 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:07,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:07,983 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:07,983 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:07,983 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:31:07,983 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:07,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:07,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:07,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2021-10-11 00:31:07,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:07,983 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:07,986 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 00:31:07,989 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 00:31:07,999 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 00:31:08,123 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:08,128 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8865e7fd-b382-497e-b5df-af2bbd074715/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 00:31:08,156 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 00:31:08,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:08,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:08,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:08,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:08,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:08,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:08,185 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 00:31:08,200 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_8865e7fd-b382-497e-b5df-af2bbd074715/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 00:31:08,248 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 00:31:08,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:08,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:08,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:08,251 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-11 00:31:08,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:08,255 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-11 00:31:08,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:08,294 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:31:08,300 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:31:08,300 INFO L444 ModelExtractionUtils]: 0 out of 3 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_8865e7fd-b382-497e-b5df-af2bbd074715/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) [2021-10-11 00:31:08,315 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:31:08,315 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:31:08,316 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:31:08,316 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:08,357 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:31:08,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:08,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:31:08,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:08,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:31:08,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:08,498 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 00:31:08,516 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 [2021-10-11 00:31:08,517 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 3 states. [2021-10-11 00:31:08,558 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 3 states. Result 24 states and 31 transitions. Complement of second has 5 states. [2021-10-11 00:31:08,559 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 00:31:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:31:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-10-11 00:31:08,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-11 00:31:08,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:08,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-11 00:31:08,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:08,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-11 00:31:08,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:08,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-10-11 00:31:08,571 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:31:08,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-11 00:31:08,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:31:08,575 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:31:08,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:31:08,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:08,576 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:08,576 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:08,577 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:08,577 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:31:08,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:31:08,577 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:31:08,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:31:08,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:31:08 BoogieIcfgContainer [2021-10-11 00:31:08,583 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:31:08,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:31:08,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:31:08,585 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:31:08,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:06" (3/4) ... [2021-10-11 00:31:08,588 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:31:08,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:31:08,590 INFO L168 Benchmark]: Toolchain (without parser) took 2527.75 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 53.6 MB in the beginning and 76.7 MB in the end (delta: -23.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:08,591 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 57.9 MB in the beginning and 57.8 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:08,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.70 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 53.3 MB in the beginning and 94.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:08,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.85 ms. Allocated memory is still 117.4 MB. Free memory was 94.3 MB in the beginning and 93.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:08,594 INFO L168 Benchmark]: Boogie Preprocessor took 34.46 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:08,595 INFO L168 Benchmark]: RCFGBuilder took 349.16 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 81.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:08,596 INFO L168 Benchmark]: BuchiAutomizer took 1778.53 ms. Allocated memory is still 117.4 MB. Free memory was 81.5 MB in the beginning and 76.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:08,596 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 117.4 MB. Free memory is still 76.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:08,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 57.9 MB in the beginning and 57.8 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.70 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 53.3 MB in the beginning and 94.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.85 ms. Allocated memory is still 117.4 MB. Free memory was 94.3 MB in the beginning and 93.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.46 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 349.16 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 81.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1778.53 ms. Allocated memory is still 117.4 MB. Free memory was 81.5 MB in the beginning and 76.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.51 ms. Allocated memory is still 117.4 MB. Free memory is still 76.7 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 + 9 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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: 7 SDtfs, 7 SDslu, 5 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: inital20 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 77ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...