./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1.c --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_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD --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 d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 ................................................................................................................................................................................................................................................................................................................................................................................ 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 23:36:02,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:36:02,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:36:02,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:36:02,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:36:02,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:36:02,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:36:02,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:36:02,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:36:02,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:36:02,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:36:02,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:36:02,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:36:02,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:36:02,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:36:02,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:36:02,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:36:02,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:36:02,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:36:02,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:36:02,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:36:02,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:36:02,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:36:02,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:36:02,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:36:02,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:36:02,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:36:02,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:36:02,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:36:02,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:36:02,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:36:02,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:36:02,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:36:02,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:36:02,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:36:02,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:36:02,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:36:02,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:36:02,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:36:02,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:36:02,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:36:02,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:36:02,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:36:02,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:36:02,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:36:02,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:36:02,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:36:02,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:36:02,712 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:36:02,712 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:36:02,713 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:36:02,713 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:36:02,713 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:36:02,717 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:36:02,718 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:36:02,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:36:02,718 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:36:02,718 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:36:02,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:36:02,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:36:02,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:36:02,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:36:02,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:36:02,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:36:02,720 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:36:02,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:36:02,720 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:36:02,720 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:36:02,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:36:02,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:36:02,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:36:02,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:36:02,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:36:02,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:36:02,723 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:36:02,723 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_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 [2021-10-28 23:36:03,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:36:03,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:36:03,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:36:03,117 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:36:03,119 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:36:03,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2021-10-28 23:36:03,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/data/f37a01014/ff76775511f34bfcb8e8e0ac83b3be38/FLAGd0c4115ec [2021-10-28 23:36:03,883 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:36:03,883 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/sv-benchmarks/c/loops/for_bounded_loop1.c [2021-10-28 23:36:03,897 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/data/f37a01014/ff76775511f34bfcb8e8e0ac83b3be38/FLAGd0c4115ec [2021-10-28 23:36:04,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/data/f37a01014/ff76775511f34bfcb8e8e0ac83b3be38 [2021-10-28 23:36:04,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:36:04,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:36:04,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:36:04,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:36:04,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:36:04,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d2740f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04, skipping insertion in model container [2021-10-28 23:36:04,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:36:04,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:36:04,461 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_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2021-10-28 23:36:04,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:36:04,503 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:36:04,525 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_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2021-10-28 23:36:04,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:36:04,556 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:36:04,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04 WrapperNode [2021-10-28 23:36:04,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:36:04,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:36:04,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:36:04,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:36:04,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:36:04,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:36:04,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:36:04,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:36:04,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:36:04,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:36:04,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:36:04,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:36:04,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (1/1) ... [2021-10-28 23:36:04,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:36:04,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:36:04,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:36:04,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:36:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:36:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:36:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:36:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:36:05,068 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:36:05,069 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-28 23:36:05,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:36:05 BoogieIcfgContainer [2021-10-28 23:36:05,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:36:05,073 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:36:05,073 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:36:05,077 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:36:05,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:36:05,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:36:04" (1/3) ... [2021-10-28 23:36:05,080 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c04f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:36:05, skipping insertion in model container [2021-10-28 23:36:05,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:36:05,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:04" (2/3) ... [2021-10-28 23:36:05,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c04f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:36:05, skipping insertion in model container [2021-10-28 23:36:05,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:36:05,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:36:05" (3/3) ... [2021-10-28 23:36:05,084 INFO L389 chiAutomizerObserver]: Analyzing ICFG for_bounded_loop1.c [2021-10-28 23:36:05,139 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:36:05,140 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:36:05,140 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:36:05,140 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:36:05,140 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:36:05,141 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:36:05,141 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:36:05,141 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:36:05,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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 23:36:05,194 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:36:05,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:36:05,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:36:05,213 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:36:05,226 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:36:05,226 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:36:05,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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 23:36:05,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:36:05,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:36:05,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:36:05,230 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:36:05,230 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:36:05,238 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(20);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 14#L21true assume !!(main_~n~0 > 0);main_~i~0 := 0; 9#L22-2true [2021-10-28 23:36:05,239 INFO L793 eck$LassoCheckResult]: Loop: 9#L22-2true assume !!(main_~i~0 < main_~n~0);main_~x~0 := main_~x~0 - main_~y~0;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 15#L10true assume !(0 == __VERIFIER_assert_~cond); 4#L10-2true main_~y~0 := main_#t~nondet9;havoc main_#t~nondet9; 6#L27true assume !!(0 != main_~y~0);main_~x~0 := main_~x~0 + main_~y~0;__VERIFIER_assert_#in~cond := (if 0 != main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 16#L10-3true assume !(0 == __VERIFIER_assert_~cond); 12#L10-5true main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 9#L22-2true [2021-10-28 23:36:05,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:05,254 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-28 23:36:05,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:36:05,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480344513] [2021-10-28 23:36:05,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:36:05,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:36:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:36:05,420 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:36:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:36:05,483 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:36:05,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1338033201, now seen corresponding path program 1 times [2021-10-28 23:36:05,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:36:05,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870940633] [2021-10-28 23:36:05,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:36:05,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:36:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:36:05,532 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:36:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:36:05,560 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:36:05,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1362227860, now seen corresponding path program 1 times [2021-10-28 23:36:05,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:36:05,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141994644] [2021-10-28 23:36:05,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:36:05,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:36:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:36:05,624 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:36:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:36:05,698 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:36:06,038 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:36:06,039 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:36:06,039 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:36:06,039 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:36:06,040 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:36:06,040 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:36:06,040 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:36:06,040 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:36:06,040 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_bounded_loop1.c_Iteration1_Loop [2021-10-28 23:36:06,041 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:36:06,041 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:36:06,073 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 23:36:06,095 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 23:36:06,100 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 23:36:06,113 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 23:36:06,299 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:36:06,300 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:36:06,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:36:06,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:36:06,305 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:36:06,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:36:06,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:36:06,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:36:06,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:36:06,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:36:06,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:36:06,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:36:06,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:36:06,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:36:06,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:36:06,647 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:36:06,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:36:06,656 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:36:06,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:36:06,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:36:06,657 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:36:06,657 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:36:06,657 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:36:06,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:36:06,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:36:06,657 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_bounded_loop1.c_Iteration1_Loop [2021-10-28 23:36:06,657 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:36:06,658 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:36:06,660 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 23:36:06,670 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 23:36:06,676 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 23:36:06,692 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 23:36:06,835 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:36:06,841 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:36:06,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:36:06,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:36:06,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:36:06,853 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 23:36:06,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:36:06,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:36:06,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:36:06,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:36:06,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:36:06,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:36:06,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:36:06,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:36:06,881 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:36:06,890 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:36:06,891 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:36:06,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:36:06,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:36:06,895 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:36:06,901 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:36:06,901 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:36:06,902 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:36:06,902 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-28 23:36:06,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:36:06,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:36:06,949 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:36:06,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:36:07,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:36:07,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:36:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:36:07,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:36:07,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:36:07,145 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 23:36:07,163 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 23:36:07,165 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 23:36:07,220 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 54 states and 67 transitions. Complement of second has 7 states. [2021-10-28 23:36:07,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:36:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 23:36:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2021-10-28 23:36:07,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 23:36:07,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:36:07,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 9 letters. Loop has 6 letters. [2021-10-28 23:36:07,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:36:07,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 12 letters. [2021-10-28 23:36:07,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:36:07,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 67 transitions. [2021-10-28 23:36:07,239 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:36:07,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2021-10-28 23:36:07,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:36:07,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:36:07,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:36:07,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:36:07,250 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:36:07,250 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:36:07,250 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:36:07,250 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:36:07,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:36:07,251 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:36:07,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:36:07,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:36:07 BoogieIcfgContainer [2021-10-28 23:36:07,257 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:36:07,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:36:07,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:36:07,258 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:36:07,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:36:05" (3/4) ... [2021-10-28 23:36:07,263 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:36:07,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:36:07,268 INFO L168 Benchmark]: Toolchain (without parser) took 3027.13 ms. Allocated memory is still 104.9 MB. Free memory was 67.7 MB in the beginning and 54.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:07,269 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 104.9 MB. Free memory was 84.3 MB in the beginning and 84.3 MB in the end (delta: 61.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:36:07,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.52 ms. Allocated memory is still 104.9 MB. Free memory was 67.5 MB in the beginning and 81.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:07,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.87 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 79.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:07,273 INFO L168 Benchmark]: Boogie Preprocessor took 52.17 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 78.7 MB in the end (delta: 980.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:36:07,274 INFO L168 Benchmark]: RCFGBuilder took 410.36 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 68.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:07,276 INFO L168 Benchmark]: BuchiAutomizer took 2184.72 ms. Allocated memory is still 104.9 MB. Free memory was 68.8 MB in the beginning and 55.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:07,283 INFO L168 Benchmark]: Witness Printer took 5.48 ms. Allocated memory is still 104.9 MB. Free memory was 55.1 MB in the beginning and 54.6 MB in the end (delta: 483.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:36:07,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 104.9 MB. Free memory was 84.3 MB in the beginning and 84.3 MB in the end (delta: 61.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.52 ms. Allocated memory is still 104.9 MB. Free memory was 67.5 MB in the beginning and 81.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.87 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 79.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.17 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 78.7 MB in the end (delta: 980.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 410.36 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 68.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2184.72 ms. Allocated memory is still 104.9 MB. Free memory was 68.8 MB in the beginning and 55.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.48 ms. Allocated memory is still 104.9 MB. Free memory was 55.1 MB in the beginning and 54.6 MB in the end (delta: 483.4 kB). 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 n + -1 * i and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. 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: 20 SDtfs, 28 SDslu, 19 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq205 hnf92 smp100 dnf177 smp100 tf103 neg96 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 59ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:36:07,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:36:07,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b49e4bef-4b1a-499d-b09c-74af0bacd6b5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...