./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg --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 0fa3b5fd31b0165adcc8931bdb36ef94241c9d1c36f2e335867de97d47f976fb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:45:12,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:45:12,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:45:12,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:45:12,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:45:12,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:45:12,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:45:12,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:45:12,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:45:12,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:45:12,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:45:12,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:45:12,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:45:12,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:45:12,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:45:12,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:45:12,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:45:12,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:45:12,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:45:12,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:45:12,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:45:12,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:45:12,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:45:12,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:45:12,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:45:12,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:45:12,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:45:12,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:45:12,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:45:12,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:45:12,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:45:12,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:45:12,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:45:12,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:45:12,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:45:12,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:45:12,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:45:12,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:45:12,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:45:12,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:45:12,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:45:12,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:45:12,462 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:45:12,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:45:12,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:45:12,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:45:12,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:45:12,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:45:12,472 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:45:12,472 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:45:12,473 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:45:12,473 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:45:12,474 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:45:12,474 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:45:12,475 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:45:12,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:45:12,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:45:12,475 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:45:12,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:45:12,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:45:12,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:45:12,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:45:12,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:45:12,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:45:12,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:45:12,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:45:12,477 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:45:12,478 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:45:12,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:45:12,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:45:12,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:45:12,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:45:12,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:45:12,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:45:12,482 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:45:12,482 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_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa3b5fd31b0165adcc8931bdb36ef94241c9d1c36f2e335867de97d47f976fb [2021-10-28 09:45:12,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:45:12,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:45:12,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:45:12,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:45:12,813 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:45:12,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2021-10-28 09:45:12,891 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/data/bc6767948/bca2652da8c741b98c3300e64c3a5226/FLAG61e364aae [2021-10-28 09:45:13,401 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:45:13,402 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2021-10-28 09:45:13,416 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/data/bc6767948/bca2652da8c741b98c3300e64c3a5226/FLAG61e364aae [2021-10-28 09:45:13,786 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/data/bc6767948/bca2652da8c741b98c3300e64c3a5226 [2021-10-28 09:45:13,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:45:13,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:45:13,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:45:13,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:45:13,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:45:13,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:45:13" (1/1) ... [2021-10-28 09:45:13,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1f10cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:13, skipping insertion in model container [2021-10-28 09:45:13,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:45:13" (1/1) ... [2021-10-28 09:45:13,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:45:13,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:45:14,216 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_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i[300,313] [2021-10-28 09:45:14,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:45:14,300 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:45:14,338 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_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i[300,313] [2021-10-28 09:45:14,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:45:14,375 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:45:14,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14 WrapperNode [2021-10-28 09:45:14,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:45:14,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:45:14,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:45:14,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:45:14,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:45:14,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:45:14,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:45:14,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:45:14,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:45:14,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:45:14,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:45:14,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:45:14,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (1/1) ... [2021-10-28 09:45:14,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:45:14,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:45:14,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:45:14,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:45:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:45:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:45:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:45:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:45:14,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:45:14,994 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 09:45:14,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:45:14 BoogieIcfgContainer [2021-10-28 09:45:14,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:45:14,998 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:45:14,998 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:45:15,001 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:45:15,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:45:15,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:45:13" (1/3) ... [2021-10-28 09:45:15,004 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50e02b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:45:15, skipping insertion in model container [2021-10-28 09:45:15,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:45:15,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:14" (2/3) ... [2021-10-28 09:45:15,005 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50e02b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:45:15, skipping insertion in model container [2021-10-28 09:45:15,006 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:45:15,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:45:14" (3/3) ... [2021-10-28 09:45:15,010 INFO L389 chiAutomizerObserver]: Analyzing ICFG test_while_int.c_1.i [2021-10-28 09:45:15,053 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:45:15,053 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:45:15,053 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:45:15,054 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:45:15,054 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:45:15,054 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:45:15,054 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:45:15,054 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:45:15,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:45:15,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:45:15,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:45:15,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:45:15,109 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:45:15,109 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:45:15,109 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:45:15,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:45:15,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:45:15,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:45:15,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:45:15,112 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:45:15,112 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:45:15,118 INFO L791 eck$LassoCheckResult]: Stem: 5#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(21);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~post7, main_~i~0;main_~i~0 := 0; 6#L6true [2021-10-28 09:45:15,119 INFO L793 eck$LassoCheckResult]: Loop: 6#L6true assume !!(main_~i~0 < 5);main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 4#L18true assume 3 != main_~i~0; 6#L6true [2021-10-28 09:45:15,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:15,124 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 09:45:15,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:15,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198034656] [2021-10-28 09:45:15,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:15,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:15,237 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:45:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:15,275 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:45:15,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2021-10-28 09:45:15,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:15,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935122603] [2021-10-28 09:45:15,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:15,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:15,287 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:45:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:15,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:45:15,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:15,296 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-10-28 09:45:15,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:15,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999827351] [2021-10-28 09:45:15,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:15,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:15,317 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:45:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:15,338 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:45:15,401 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:45:15,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:45:15,402 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:45:15,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:45:15,403 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:45:15,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:45:15,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:45:15,412 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:45:15,412 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.c_1.i_Iteration1_Loop [2021-10-28 09:45:15,412 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:45:15,413 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:45:15,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:45:15,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:45:15,581 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:45:15,582 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:45:15,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:45:15,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:45:15,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:45:15,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:45:15,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:45:15,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:45:15,636 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:45:15,637 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: [] [2021-10-28 09:45:15,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:45:15,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:45:15,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:45:15,660 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:45:15,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:45:15,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:45:15,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:45:15,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:45:15,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:45:15,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:45:15,704 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:45:15,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:45:15,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:45:15,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:45:15,816 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:45:15,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:45:15,822 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:45:15,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:45:15,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:45:15,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:45:15,822 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:45:15,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:45:15,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:45:15,822 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:45:15,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.c_1.i_Iteration1_Loop [2021-10-28 09:45:15,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:45:15,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:45:15,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:45:15,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:45:15,929 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:45:15,934 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:45:15,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:45:15,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:45:15,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:45:15,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:45:15,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:45:15,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:45:15,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:45:15,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:45:15,961 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:45:15,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:45:15,965 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:45:15,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:45:15,983 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:45:15,999 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:45:15,999 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:45:16,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:45:16,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:45:16,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:45:16,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:45:16,033 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:45:16,033 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:45:16,034 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:45:16,035 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] [2021-10-28 09:45:16,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:45:16,075 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:45:16,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:45:16,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:45:16,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:45:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:45:16,218 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:45:16,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:45:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:45:16,392 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 [2021-10-28 09:45:16,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:45:16,470 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 24 states and 31 transitions. Complement of second has 5 states. [2021-10-28 09:45:16,484 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 [2021-10-28 09:45:16,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:45:16,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-10-28 09:45:16,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 09:45:16,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:45:16,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:45:16,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:45:16,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 09:45:16,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:45:16,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-10-28 09:45:16,498 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:45:16,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-28 09:45:16,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:45:16,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:45:16,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:45:16,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:45:16,504 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:45:16,505 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:45:16,505 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:45:16,505 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:45:16,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:45:16,505 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:45:16,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:45:16,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:45:16 BoogieIcfgContainer [2021-10-28 09:45:16,510 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:45:16,510 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:45:16,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:45:16,511 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:45:16,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:45:14" (3/4) ... [2021-10-28 09:45:16,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:45:16,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:45:16,515 INFO L168 Benchmark]: Toolchain (without parser) took 2721.97 ms. Allocated memory is still 100.7 MB. Free memory was 60.2 MB in the beginning and 66.7 MB in the end (delta: -6.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:45:16,516 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 76.2 MB in the beginning and 76.2 MB in the end (delta: 60.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:45:16,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.98 ms. Allocated memory is still 100.7 MB. Free memory was 60.1 MB in the beginning and 76.8 MB in the end (delta: -16.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:45:16,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.18 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 75.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:45:16,518 INFO L168 Benchmark]: Boogie Preprocessor took 52.27 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 74.6 MB in the end (delta: 905.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:45:16,518 INFO L168 Benchmark]: RCFGBuilder took 472.98 ms. Allocated memory is still 100.7 MB. Free memory was 74.3 MB in the beginning and 65.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:45:16,519 INFO L168 Benchmark]: BuchiAutomizer took 1512.32 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 67.1 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:45:16,519 INFO L168 Benchmark]: Witness Printer took 3.14 ms. Allocated memory is still 100.7 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:45:16,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 76.2 MB in the beginning and 76.2 MB in the end (delta: 60.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 576.98 ms. Allocated memory is still 100.7 MB. Free memory was 60.1 MB in the beginning and 76.8 MB in the end (delta: -16.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.18 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 75.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.27 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 74.6 MB in the end (delta: 905.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 472.98 ms. Allocated memory is still 100.7 MB. Free memory was 74.3 MB in the beginning and 65.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1512.32 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 67.1 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.14 ms. Allocated memory is still 100.7 MB. Free memory is still 66.7 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 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 5 SDtfs, 7 SDslu, 3 SDs, 0 SdLazy, 7 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 98ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:45:16,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 09:45:16,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3d3cd-e98b-43b1-a8fb-915dacd7dd57/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...