./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y --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 f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:48:00,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:48:00,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:48:00,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:48:00,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:48:00,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:48:00,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:48:00,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:48:00,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:48:00,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:48:00,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:48:00,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:48:00,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:48:00,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:48:00,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:48:00,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:48:00,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:48:00,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:48:00,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:48:00,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:48:00,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:48:00,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:48:00,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:48:00,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:48:00,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:48:00,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:48:00,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:48:00,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:48:00,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:48:00,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:48:00,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:48:00,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:48:00,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:48:00,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:48:00,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:48:00,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:48:00,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:48:00,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:48:00,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:48:00,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:48:00,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:48:00,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:48:00,857 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:48:00,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:48:00,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:48:00,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:48:00,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:48:00,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:48:00,860 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:48:00,860 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:48:00,860 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:48:00,861 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:48:00,861 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:48:00,861 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:48:00,861 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:48:00,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:48:00,862 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:48:00,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:48:00,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:48:00,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:48:00,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:48:00,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:48:00,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:48:00,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:48:00,864 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:48:00,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:48:00,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:48:00,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:48:00,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:48:00,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:48:00,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:48:00,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:48:00,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:48:00,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:48:00,868 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:48:00,868 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_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 [2021-11-13 18:48:01,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:48:01,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:48:01,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:48:01,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:48:01,222 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:48:01,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-regression/test_while_int.i [2021-11-13 18:48:01,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/data/4499289ce/6f1f50cb57934a92b99900f1aa036a26/FLAG81df8733b [2021-11-13 18:48:01,970 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:48:01,971 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/sv-benchmarks/c/ldv-regression/test_while_int.i [2021-11-13 18:48:01,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/data/4499289ce/6f1f50cb57934a92b99900f1aa036a26/FLAG81df8733b [2021-11-13 18:48:02,334 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/data/4499289ce/6f1f50cb57934a92b99900f1aa036a26 [2021-11-13 18:48:02,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:48:02,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:48:02,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:48:02,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:48:02,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:48:02,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7399f63c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02, skipping insertion in model container [2021-11-13 18:48:02,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:48:02,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:48:02,529 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/sv-benchmarks/c/ldv-regression/test_while_int.i[296,309] [2021-11-13 18:48:02,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:48:02,554 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:48:02,565 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/sv-benchmarks/c/ldv-regression/test_while_int.i[296,309] [2021-11-13 18:48:02,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:48:02,582 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:48:02,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02 WrapperNode [2021-11-13 18:48:02,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:48:02,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:48:02,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:48:02,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:48:02,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:48:02,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:48:02,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:48:02,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:48:02,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:48:02,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:48:02,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:48:02,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:48:02,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (1/1) ... [2021-11-13 18:48:02,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:48:02,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:48:02,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:48:02,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:48:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:48:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:48:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:48:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:48:02,934 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:48:02,934 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:48:02,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:48:02 BoogieIcfgContainer [2021-11-13 18:48:02,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:48:02,937 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:48:02,938 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:48:02,941 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:48:02,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:48:02,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:48:02" (1/3) ... [2021-11-13 18:48:02,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c44d923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:48:02, skipping insertion in model container [2021-11-13 18:48:02,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:48:02,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:48:02" (2/3) ... [2021-11-13 18:48:02,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c44d923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:48:02, skipping insertion in model container [2021-11-13 18:48:02,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:48:02,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:48:02" (3/3) ... [2021-11-13 18:48:02,959 INFO L388 chiAutomizerObserver]: Analyzing ICFG test_while_int.i [2021-11-13 18:48:03,028 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:48:03,044 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:48:03,044 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:48:03,044 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:48:03,044 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:48:03,045 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:48:03,045 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:48:03,045 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:48:03,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:48:03,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-13 18:48:03,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:48:03,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:48:03,112 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-13 18:48:03,113 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:48:03,113 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:48:03,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:48:03,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-13 18:48:03,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:48:03,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:48:03,117 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-13 18:48:03,117 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:48:03,124 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#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); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post7#1, main_~i~0#1;main_~i~0#1 := 0; 7#L26-2true [2021-11-13 18:48:03,125 INFO L793 eck$LassoCheckResult]: Loop: 7#L26-2true assume !!(main_~i~0#1 < 5);main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;assume { :begin_inline_check_error } true;check_error_#in~b#1 := (if 3 != main_~i~0#1 then 1 else 0);havoc check_error_~b#1;check_error_~b#1 := check_error_#in~b#1; 11#L20true assume 0 != check_error_~b#1; 9#L19true assume { :end_inline_check_error } true; 7#L26-2true [2021-11-13 18:48:03,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:48:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-13 18:48:03,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:48:03,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571860833] [2021-11-13 18:48:03,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:48:03,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:48:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:48:03,270 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:48:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:48:03,353 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:48:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:48:03,356 INFO L85 PathProgramCache]: Analyzing trace with hash 40818, now seen corresponding path program 1 times [2021-11-13 18:48:03,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:48:03,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100908298] [2021-11-13 18:48:03,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:48:03,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:48:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:48:03,389 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:48:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:48:03,410 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:48:03,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:48:03,416 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2021-11-13 18:48:03,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:48:03,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175838945] [2021-11-13 18:48:03,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:48:03,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:48:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:48:03,446 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:48:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:48:03,490 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:48:03,669 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:48:03,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:48:03,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:48:03,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:48:03,671 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 18:48:03,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:48:03,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:48:03,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:48:03,672 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2021-11-13 18:48:03,672 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:48:03,673 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:48:03,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:48:03,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:48:03,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:48:03,839 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:48:03,840 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 18:48:03,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:48:03,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:48:03,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:48:03,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 18:48:03,853 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 18:48:03,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 18:48:03,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:48:03,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:48:03,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:48:03,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:48:03,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 18:48:03,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 18:48:03,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 18:48:03,989 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 18:48:04,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:48:04,005 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:48:04,005 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:48:04,005 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:48:04,005 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:48:04,005 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:48:04,005 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:48:04,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:48:04,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:48:04,006 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2021-11-13 18:48:04,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:48:04,006 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:48:04,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:48:04,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:48:04,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:48:04,101 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:48:04,106 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:48:04,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:48:04,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:48:04,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:48:04,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:48:04,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:48:04,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:48:04,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:48:04,141 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-13 18:48:04,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:48:04,147 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-13 18:48:04,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:48:04,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 18:48:04,168 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:48:04,176 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-13 18:48:04,177 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-13 18:48:04,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:48:04,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:48:04,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:48:04,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:48:04,184 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 18:48:04,185 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:48:04,185 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 9 Supporting invariants [] [2021-11-13 18:48:04,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 18:48:04,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-13 18:48:04,215 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 18:48:04,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:48:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:48:04,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:48:04,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:48:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:48:04,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:48:04,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:48:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:48:04,434 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 18:48:04,435 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:48:04,471 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 35 transitions. Complement of second has 5 states. [2021-11-13 18:48:04,473 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 [2021-11-13 18:48:04,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:48:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2021-11-13 18:48:04,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-13 18:48:04,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:48:04,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-13 18:48:04,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:48:04,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-13 18:48:04,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:48:04,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-11-13 18:48:04,485 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:48:04,488 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2021-11-13 18:48:04,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 18:48:04,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 18:48:04,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 18:48:04,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:48:04,490 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:48:04,490 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:48:04,490 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:48:04,490 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:48:04,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:48:04,490 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:48:04,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-13 18:48:04,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:48:04 BoogieIcfgContainer [2021-11-13 18:48:04,504 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:48:04,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:48:04,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:48:04,506 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:48:04,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:48:04,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:48:02" (3/4) ... [2021-11-13 18:48:04,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 18:48:04,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:48:04,514 INFO L158 Benchmark]: Toolchain (without parser) took 2174.23ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 51.0MB in the beginning and 87.6MB in the end (delta: -36.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:48:04,515 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 83.9MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:48:04,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.96ms. Allocated memory is still 83.9MB. Free memory was 50.9MB in the beginning and 60.0MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:48:04,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.44ms. Allocated memory is still 83.9MB. Free memory was 60.0MB in the beginning and 58.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:48:04,516 INFO L158 Benchmark]: Boogie Preprocessor took 22.72ms. Allocated memory is still 83.9MB. Free memory was 58.7MB in the beginning and 57.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:48:04,517 INFO L158 Benchmark]: RCFGBuilder took 294.20ms. Allocated memory is still 83.9MB. Free memory was 57.7MB in the beginning and 49.1MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:48:04,518 INFO L158 Benchmark]: BuchiAutomizer took 1566.87ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 49.1MB in the beginning and 88.6MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:48:04,518 INFO L158 Benchmark]: Witness Printer took 7.48ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 87.6MB in the end (delta: 926.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:48:04,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 83.9MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.96ms. Allocated memory is still 83.9MB. Free memory was 50.9MB in the beginning and 60.0MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.44ms. Allocated memory is still 83.9MB. Free memory was 60.0MB in the beginning and 58.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.72ms. Allocated memory is still 83.9MB. Free memory was 58.7MB in the beginning and 57.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.20ms. Allocated memory is still 83.9MB. Free memory was 57.7MB in the beginning and 49.1MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1566.87ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 49.1MB in the beginning and 88.6MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.48ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 87.6MB in the end (delta: 926.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 3.89ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 3.17ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 8 mSDtfsCounter, 3 mSolverCounterSat, 0.63ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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: 78ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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! [2021-11-13 18:48:04,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bd26c5-7cf0-415a-96a5-3a245ddda741/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE