./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1acb0c0dcfb78ab47001eb57f5095348cf0ba1fe26db78bd8f7dfec538bac19a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:37:56,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:37:56,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:37:56,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:37:56,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:37:56,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:37:56,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:37:56,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:37:56,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:37:56,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:37:56,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:37:56,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:37:56,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:37:56,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:37:56,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:37:56,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:37:56,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:37:56,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:37:56,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:37:56,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:37:56,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:37:56,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:37:56,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:37:56,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:37:56,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:37:56,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:37:56,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:37:56,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:37:56,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:37:56,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:37:56,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:37:56,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:37:56,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:37:56,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:37:56,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:37:56,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:37:56,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:37:56,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:37:56,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:37:56,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:37:56,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:37:56,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-07 01:37:56,674 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:37:56,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:37:56,674 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:37:56,674 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:37:56,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:37:56,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:37:56,675 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:37:56,675 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 01:37:56,675 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 01:37:56,676 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 01:37:56,676 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 01:37:56,676 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 01:37:56,676 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 01:37:56,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:37:56,676 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 01:37:56,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:37:56,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:37:56,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 01:37:56,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 01:37:56,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 01:37:56,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:37:56,677 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 01:37:56,677 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:37:56,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 01:37:56,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:37:56,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:37:56,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:37:56,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:37:56,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:37:56,679 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 01:37:56,679 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_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1acb0c0dcfb78ab47001eb57f5095348cf0ba1fe26db78bd8f7dfec538bac19a [2021-12-07 01:37:56,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:37:56,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:37:56,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:37:56,881 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:37:56,882 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:37:56,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-restricted-15/b.13.c [2021-12-07 01:37:56,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/data/42914def0/1766ab95ae414287bfc2966718180fb4/FLAGd24499e6a [2021-12-07 01:37:57,299 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:37:57,299 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/sv-benchmarks/c/termination-restricted-15/b.13.c [2021-12-07 01:37:57,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/data/42914def0/1766ab95ae414287bfc2966718180fb4/FLAGd24499e6a [2021-12-07 01:37:57,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/data/42914def0/1766ab95ae414287bfc2966718180fb4 [2021-12-07 01:37:57,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:37:57,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:37:57,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:37:57,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:37:57,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:37:57,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dba6171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57, skipping insertion in model container [2021-12-07 01:37:57,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:37:57,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:37:57,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:37:57,462 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:37:57,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:37:57,484 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:37:57,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57 WrapperNode [2021-12-07 01:37:57,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:37:57,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:37:57,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:37:57,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:37:57,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,512 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-12-07 01:37:57,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:37:57,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:37:57,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:37:57,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:37:57,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:37:57,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:37:57,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:37:57,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:37:57,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (1/1) ... [2021-12-07 01:37:57,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:57,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:57,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:57,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 01:37:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:37:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:37:57,634 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:37:57,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:37:57,682 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:37:57,688 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:37:57,689 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:37:57,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:57 BoogieIcfgContainer [2021-12-07 01:37:57,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:37:57,692 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 01:37:57,692 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 01:37:57,695 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 01:37:57,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:37:57,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:37:57" (1/3) ... [2021-12-07 01:37:57,697 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e59d15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:37:57, skipping insertion in model container [2021-12-07 01:37:57,697 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:37:57,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:57" (2/3) ... [2021-12-07 01:37:57,697 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e59d15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:37:57, skipping insertion in model container [2021-12-07 01:37:57,697 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:37:57,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:57" (3/3) ... [2021-12-07 01:37:57,699 INFO L388 chiAutomizerObserver]: Analyzing ICFG b.13.c [2021-12-07 01:37:57,741 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 01:37:57,741 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 01:37:57,741 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 01:37:57,741 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 01:37:57,741 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 01:37:57,742 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 01:37:57,742 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 01:37:57,742 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 01:37:57,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-07 01:37:57,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 01:37:57,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:37:57,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:37:57,770 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-07 01:37:57,770 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:37:57,771 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 01:37:57,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-07 01:37:57,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 01:37:57,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:37:57,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:37:57,772 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-07 01:37:57,772 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:37:57,777 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 8#L16-2true [2021-12-07 01:37:57,777 INFO L793 eck$LassoCheckResult]: Loop: 8#L16-2true assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 7#L13true assume main_~x~0#1 > main_~z~0#1;main_~x~0#1 := main_~x~0#1 - 1; 8#L16-2true [2021-12-07 01:37:57,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-07 01:37:57,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:57,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263462962] [2021-12-07 01:37:57,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:57,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:57,842 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:37:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:57,854 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:37:57,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:57,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2021-12-07 01:37:57,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:57,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624495997] [2021-12-07 01:37:57,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:57,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:57,866 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:37:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:57,871 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:37:57,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:57,872 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-12-07 01:37:57,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:57,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581548611] [2021-12-07 01:37:57,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:57,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:57,879 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:37:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:57,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:37:57,930 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:37:57,930 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:37:57,930 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:37:57,930 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:37:57,930 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:37:57,931 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:57,931 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:37:57,931 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:37:57,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration1_Loop [2021-12-07 01:37:57,931 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:37:57,931 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:37:57,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:57,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:57,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:57,994 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:37:57,995 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:37:57,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:57,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:57,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:57,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-07 01:37:57,999 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:37:57,999 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:37:58,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:37:58,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:58,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:58,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:58,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-07 01:37:58,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:37:58,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:37:58,210 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:37:58,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-07 01:37:58,213 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:37:58,213 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:37:58,213 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:37:58,213 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:37:58,213 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:37:58,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:58,213 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:37:58,213 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:37:58,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration1_Loop [2021-12-07 01:37:58,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:37:58,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:37:58,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:58,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:58,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:58,245 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:37:58,248 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:37:58,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:58,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:58,250 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:58,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-07 01:37:58,251 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 [2021-12-07 01:37:58,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:37:58,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:37:58,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:37:58,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:37:58,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:37:58,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:37:58,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:37:58,265 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:37:58,271 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-07 01:37:58,271 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-07 01:37:58,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:58,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:58,273 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:58,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-07 01:37:58,275 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:37:58,275 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-07 01:37:58,275 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:37:58,275 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2021-12-07 01:37:58,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-07 01:37:58,296 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-07 01:37:58,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:58,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:37:58,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:37:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:58,340 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:37:58,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:37:58,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-07 01:37:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:37:58,369 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-07 01:37:58,370 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-07 01:37:58,399 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 35 transitions. Complement of second has 5 states. [2021-12-07 01:37:58,400 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 [2021-12-07 01:37:58,404 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) [2021-12-07 01:37:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-12-07 01:37:58,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-07 01:37:58,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:37:58,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-07 01:37:58,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:37:58,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-07 01:37:58,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:37:58,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2021-12-07 01:37:58,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 01:37:58,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 11 states and 16 transitions. [2021-12-07 01:37:58,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-07 01:37:58,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-07 01:37:58,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-12-07 01:37:58,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:37:58,412 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-12-07 01:37:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-12-07 01:37:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-12-07 01:37:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 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) [2021-12-07 01:37:58,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2021-12-07 01:37:58,429 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2021-12-07 01:37:58,430 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2021-12-07 01:37:58,430 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-07 01:37:58,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2021-12-07 01:37:58,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 01:37:58,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:37:58,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:37:58,430 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-07 01:37:58,430 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 01:37:58,431 INFO L791 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 76#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 77#L16-2 assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 72#L13 [2021-12-07 01:37:58,431 INFO L793 eck$LassoCheckResult]: Loop: 72#L13 assume !(main_~x~0#1 > main_~z~0#1); 68#L16 assume main_~y~0#1 > main_~z~0#1;main_~y~0#1 := main_~y~0#1 - 1; 69#L16-2 assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 72#L13 [2021-12-07 01:37:58,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:58,431 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-07 01:37:58,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:58,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670598885] [2021-12-07 01:37:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:58,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:58,435 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:37:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:58,439 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:37:58,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:58,439 INFO L85 PathProgramCache]: Analyzing trace with hash 45767, now seen corresponding path program 1 times [2021-12-07 01:37:58,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:58,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802833892] [2021-12-07 01:37:58,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:58,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:58,444 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:37:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:58,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:37:58,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:58,448 INFO L85 PathProgramCache]: Analyzing trace with hash 889694400, now seen corresponding path program 1 times [2021-12-07 01:37:58,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:58,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484702576] [2021-12-07 01:37:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:58,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:58,453 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:37:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:58,457 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:37:58,479 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:37:58,479 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:37:58,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:37:58,479 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:37:58,479 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:37:58,479 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:58,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:37:58,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:37:58,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration2_Loop [2021-12-07 01:37:58,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:37:58,479 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:37:58,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:58,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:58,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:58,511 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:37:58,511 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:37:58,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:58,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:58,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:58,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-07 01:37:58,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:37:58,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:37:58,527 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:37:58,527 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:37:58,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-07 01:37:58,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:58,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:58,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:58,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-07 01:37:58,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:37:58,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:37:58,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-07 01:37:58,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:58,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:58,577 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:58,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-07 01:37:58,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:37:58,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:37:58,975 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:37:58,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-07 01:37:58,978 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:37:58,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:37:58,978 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:37:58,978 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:37:58,978 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:37:58,978 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:58,978 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:37:58,978 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:37:58,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration2_Loop [2021-12-07 01:37:58,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:37:58,978 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:37:58,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:58,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:58,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:37:59,011 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:37:59,011 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:37:59,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:59,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:59,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:59,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-07 01:37:59,013 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 [2021-12-07 01:37:59,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:37:59,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:37:59,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:37:59,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:37:59,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:37:59,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:37:59,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:37:59,024 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:37:59,027 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-07 01:37:59,027 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-07 01:37:59,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:37:59,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:59,028 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:59,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-07 01:37:59,029 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:37:59,029 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-07 01:37:59,029 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:37:59,029 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2021-12-07 01:37:59,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-07 01:37:59,048 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-07 01:37:59,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:59,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:37:59,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:37:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:59,065 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:37:59,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:37:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:37:59,109 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-07 01:37:59,109 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-07 01:37:59,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 36 states and 54 transitions. Complement of second has 7 states. [2021-12-07 01:37:59,131 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 [2021-12-07 01:37:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-07 01:37:59,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-12-07 01:37:59,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-07 01:37:59,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:37:59,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-07 01:37:59,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:37:59,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-07 01:37:59,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:37:59,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2021-12-07 01:37:59,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 01:37:59,135 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 25 states and 36 transitions. [2021-12-07 01:37:59,135 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-07 01:37:59,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-07 01:37:59,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 36 transitions. [2021-12-07 01:37:59,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:37:59,135 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2021-12-07 01:37:59,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 36 transitions. [2021-12-07 01:37:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2021-12-07 01:37:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 states have internal predecessors, (32), 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) [2021-12-07 01:37:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 32 transitions. [2021-12-07 01:37:59,138 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2021-12-07 01:37:59,138 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2021-12-07 01:37:59,138 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-07 01:37:59,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 32 transitions. [2021-12-07 01:37:59,139 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-07 01:37:59,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:37:59,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:37:59,139 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-07 01:37:59,139 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 01:37:59,139 INFO L791 eck$LassoCheckResult]: Stem: 165#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 166#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 169#L16-2 assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 172#L13 assume !(main_~x~0#1 > main_~z~0#1); 157#L16 [2021-12-07 01:37:59,139 INFO L793 eck$LassoCheckResult]: Loop: 157#L16 assume !(main_~y~0#1 > main_~z~0#1); 158#L16-2 assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 167#L13 assume !(main_~x~0#1 > main_~z~0#1); 157#L16 [2021-12-07 01:37:59,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:59,139 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-12-07 01:37:59,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:59,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39315411] [2021-12-07 01:37:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:59,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:59,143 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:37:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:37:59,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:37:59,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:59,146 INFO L85 PathProgramCache]: Analyzing trace with hash 50329, now seen corresponding path program 1 times [2021-12-07 01:37:59,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:59,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306224131] [2021-12-07 01:37:59,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:59,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:37:59,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:37:59,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306224131] [2021-12-07 01:37:59,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306224131] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:37:59,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:37:59,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:37:59,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116703042] [2021-12-07 01:37:59,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:37:59,174 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-07 01:37:59,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:37:59,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:37:59,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:37:59,177 INFO L87 Difference]: Start difference. First operand 21 states and 32 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-12-07 01:37:59,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:37:59,192 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2021-12-07 01:37:59,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:37:59,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2021-12-07 01:37:59,194 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 01:37:59,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-12-07 01:37:59,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-07 01:37:59,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-07 01:37:59,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-07 01:37:59,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:37:59,194 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:37:59,194 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:37:59,194 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:37:59,195 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-07 01:37:59,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-07 01:37:59,195 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 01:37:59,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-07 01:37:59,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:37:59 BoogieIcfgContainer [2021-12-07 01:37:59,200 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-07 01:37:59,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:37:59,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:37:59,201 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:37:59,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:57" (3/4) ... [2021-12-07 01:37:59,203 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 01:37:59,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:37:59,204 INFO L158 Benchmark]: Toolchain (without parser) took 1883.50ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 47.8MB in the end (delta: 23.2MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2021-12-07 01:37:59,204 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:37:59,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.52ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 84.1MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 01:37:59,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.82ms. Allocated memory is still 107.0MB. Free memory was 84.1MB in the beginning and 82.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:37:59,205 INFO L158 Benchmark]: Boogie Preprocessor took 13.51ms. Allocated memory is still 107.0MB. Free memory was 82.8MB in the beginning and 81.9MB in the end (delta: 888.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:37:59,205 INFO L158 Benchmark]: RCFGBuilder took 163.66ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 74.0MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 01:37:59,206 INFO L158 Benchmark]: BuchiAutomizer took 1508.47ms. Allocated memory is still 107.0MB. Free memory was 73.5MB in the beginning and 48.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2021-12-07 01:37:59,206 INFO L158 Benchmark]: Witness Printer took 2.71ms. Allocated memory is still 107.0MB. Free memory was 48.4MB in the beginning and 47.8MB in the end (delta: 541.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:37:59,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.52ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 84.1MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.82ms. Allocated memory is still 107.0MB. Free memory was 84.1MB in the beginning and 82.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.51ms. Allocated memory is still 107.0MB. Free memory was 82.8MB in the beginning and 81.9MB in the end (delta: 888.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 163.66ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 74.0MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1508.47ms. Allocated memory is still 107.0MB. Free memory was 73.5MB in the beginning and 48.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Witness Printer took 2.71ms. Allocated memory is still 107.0MB. Free memory was 48.4MB in the beginning and 47.8MB in the end (delta: 541.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * z + x and consists of 4 locations. One deterministic module has affine ranking function -1 * z + y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 15 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-07 01:37:59,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-07 01:37:59,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04e2bc3-3043-4781-a848-18740dc77dc1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE