./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN --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 759adb73d7cf84e38b053793a18c9790a1be4e7fcbaa9f1ea135fb0a39711b48 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:57:35,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:57:35,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:57:35,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:57:35,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:57:35,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:57:35,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:57:35,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:57:35,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:57:35,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:57:35,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:57:35,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:57:35,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:57:35,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:57:35,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:57:35,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:57:35,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:57:35,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:57:35,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:57:35,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:57:35,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:57:35,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:57:35,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:57:35,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:57:35,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:57:35,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:57:35,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:57:35,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:57:35,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:57:35,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:57:35,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:57:35,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:57:35,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:57:35,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:57:35,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:57:35,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:57:35,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:57:35,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:57:35,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:57:35,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:57:35,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:57:35,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 10:57:35,784 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:57:35,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:57:35,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:57:35,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:57:35,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:57:35,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:57:35,786 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:57:35,786 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 10:57:35,786 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 10:57:35,787 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 10:57:35,787 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 10:57:35,787 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 10:57:35,787 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 10:57:35,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:57:35,788 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:57:35,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:57:35,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:57:35,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 10:57:35,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 10:57:35,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 10:57:35,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:57:35,789 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 10:57:35,789 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:57:35,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 10:57:35,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:57:35,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:57:35,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:57:35,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:57:35,791 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 10:57:35,792 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_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 759adb73d7cf84e38b053793a18c9790a1be4e7fcbaa9f1ea135fb0a39711b48 [2022-11-20 10:57:36,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:57:36,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:57:36,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:57:36,109 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:57:36,110 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:57:36,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c [2022-11-20 10:57:39,101 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:57:39,292 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:57:39,295 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c [2022-11-20 10:57:39,302 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/data/4e89389a5/a080fdf915a949e28ba4754992aecb60/FLAGec6f95e62 [2022-11-20 10:57:39,325 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/data/4e89389a5/a080fdf915a949e28ba4754992aecb60 [2022-11-20 10:57:39,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:57:39,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:57:39,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:39,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:57:39,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:57:39,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ccfcae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39, skipping insertion in model container [2022-11-20 10:57:39,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:57:39,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:57:39,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:39,557 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:57:39,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:39,588 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:57:39,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39 WrapperNode [2022-11-20 10:57:39,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:39,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:39,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:57:39,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:57:39,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,625 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-11-20 10:57:39,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:39,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:57:39,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:57:39,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:57:39,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,644 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:57:39,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:57:39,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:57:39,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:57:39,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (1/1) ... [2022-11-20 10:57:39,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:39,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:39,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:39,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 10:57:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2022-11-20 10:57:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2022-11-20 10:57:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:57:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:57:39,808 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:57:39,812 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:57:39,971 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:57:39,986 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:57:39,986 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:57:39,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:39 BoogieIcfgContainer [2022-11-20 10:57:39,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:57:39,995 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 10:57:39,995 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 10:57:40,007 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 10:57:40,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:57:40,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:57:39" (1/3) ... [2022-11-20 10:57:40,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16d37cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:57:40, skipping insertion in model container [2022-11-20 10:57:40,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:57:40,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:39" (2/3) ... [2022-11-20 10:57:40,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16d37cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:57:40, skipping insertion in model container [2022-11-20 10:57:40,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:57:40,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:39" (3/3) ... [2022-11-20 10:57:40,011 INFO L332 chiAutomizerObserver]: Analyzing ICFG RecursiveMultiplication-1.c [2022-11-20 10:57:40,066 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 10:57:40,066 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 10:57:40,067 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 10:57:40,067 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 10:57:40,067 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 10:57:40,067 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 10:57:40,067 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 10:57:40,068 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 10:57:40,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:57:40,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:57:40,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:57:40,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:57:40,101 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 10:57:40,101 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 10:57:40,101 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 10:57:40,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:57:40,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:57:40,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:57:40,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:57:40,105 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 10:57:40,105 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 10:57:40,126 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~m~0#1, main_~n~0#1, main_~res~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 11#L26true assume !!(-65535 <= main_~m~0#1 && main_~m~0#1 <= 65535); 5#L27true assume !!(-65535 <= main_~n~0#1 && main_~n~0#1 <= 65535); 15#L28true call main_#t~ret4#1 := mult(main_~m~0#1, main_~n~0#1);< 7#multENTRYtrue [2022-11-20 10:57:40,127 INFO L750 eck$LassoCheckResult]: Loop: 7#multENTRYtrue ~n := #in~n;~m := #in~m; 4#L13true assume ~m < 0; 17#L14true call #t~ret0 := mult(~n, -~m);< 7#multENTRYtrue [2022-11-20 10:57:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:40,133 INFO L85 PathProgramCache]: Analyzing trace with hash 42056124, now seen corresponding path program 1 times [2022-11-20 10:57:40,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:40,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41805390] [2022-11-20 10:57:40,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:40,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:40,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:57:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:40,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:57:40,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash 29916, now seen corresponding path program 1 times [2022-11-20 10:57:40,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:40,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220062531] [2022-11-20 10:57:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:40,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:40,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:57:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:40,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:57:40,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:40,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1236460223, now seen corresponding path program 1 times [2022-11-20 10:57:40,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:40,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831413695] [2022-11-20 10:57:40,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:40,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:40,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:57:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:40,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:57:40,439 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:57:40,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:57:40,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:57:40,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:57:40,440 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:57:40,441 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,441 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:57:40,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:57:40,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration1_Loop [2022-11-20 10:57:40,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:57:40,442 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:57:40,462 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,484 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,495 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,512 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,613 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:57:40,614 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:57:40,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:40,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:40,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:40,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:40,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 10:57:40,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:40,652 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:40,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:40,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:40,667 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:40,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 10:57:40,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:40,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:40,727 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:40,727 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:40,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:40,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:40,734 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:40,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:40,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:40,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 10:57:40,775 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:40,775 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:40,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:40,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:40,791 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:40,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 10:57:40,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:40,797 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:40,819 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:40,819 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:40,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:40,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:40,826 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:40,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:40,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:40,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 10:57:40,850 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:40,850 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:40,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:40,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:40,860 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:40,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 10:57:40,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:40,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:40,884 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:40,885 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:40,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-20 10:57:40,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:40,899 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:40,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 10:57:40,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:40,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:40,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:40,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:40,939 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:40,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 10:57:40,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:57:40,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:40,972 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:57:40,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:40,980 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:57:40,980 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:57:40,980 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:57:40,980 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:57:40,980 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:57:40,980 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:40,981 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:57:40,981 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:57:40,981 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration1_Loop [2022-11-20 10:57:40,981 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:57:40,981 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:57:40,983 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,986 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:40,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:41,001 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:41,062 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:57:41,067 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:57:41,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:41,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:41,071 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:41,080 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 [2022-11-20 10:57:41,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:41,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:41,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:41,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:41,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:41,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:41,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:41,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 10:57:41,107 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:41,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:41,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:41,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:41,117 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:41,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 10:57:41,122 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 [2022-11-20 10:57:41,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:41,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:41,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:41,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:41,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:41,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:41,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:41,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:41,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:41,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:41,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:41,156 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:41,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 10:57:41,161 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 [2022-11-20 10:57:41,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:41,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:41,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:41,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:41,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:41,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:41,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:41,174 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:41,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:41,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:41,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:41,179 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:41,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 10:57:41,182 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 [2022-11-20 10:57:41,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:41,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:41,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:41,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:41,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:41,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:41,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:41,214 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:41,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:41,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:41,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:41,219 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:41,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 10:57:41,222 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 [2022-11-20 10:57:41,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:41,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:41,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:41,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:41,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:41,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:41,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:41,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:41,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-20 10:57:41,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:41,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:41,244 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:41,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 10:57:41,249 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 [2022-11-20 10:57:41,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:41,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:41,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:41,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:41,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:41,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:41,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:41,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:41,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-11-20 10:57:41,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:41,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:41,284 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:41,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 10:57:41,291 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 [2022-11-20 10:57:41,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:41,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:41,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:41,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:41,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:41,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:41,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:41,350 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:57:41,354 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-20 10:57:41,355 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 10:57:41,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:41,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:41,383 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:41,392 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:57:41,392 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:57:41,392 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:57:41,393 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2022-11-20 10:57:41,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 10:57:41,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:41,408 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:57:41,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:41,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:57:41,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:41,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:57:41,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:41,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:41,596 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-20 10:57:41,599 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:41,704 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 60 transitions. Complement of second has 12 states. [2022-11-20 10:57:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:57:41,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:41,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-20 10:57:41,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-20 10:57:41,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:57:41,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2022-11-20 10:57:41,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:57:41,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2022-11-20 10:57:41,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:57:41,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 60 transitions. [2022-11-20 10:57:41,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:57:41,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 22 states and 25 transitions. [2022-11-20 10:57:41,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-20 10:57:41,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-20 10:57:41,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 25 transitions. [2022-11-20 10:57:41,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:57:41,729 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-20 10:57:41,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 25 transitions. [2022-11-20 10:57:41,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2022-11-20 10:57:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2022-11-20 10:57:41,759 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-11-20 10:57:41,759 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-11-20 10:57:41,759 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 10:57:41,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2022-11-20 10:57:41,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:57:41,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:57:41,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:57:41,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:41,761 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 10:57:41,761 INFO L748 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~m~0#1, main_~n~0#1, main_~res~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 136#L26 assume !!(-65535 <= main_~m~0#1 && main_~m~0#1 <= 65535); 130#L27 assume !!(-65535 <= main_~n~0#1 && main_~n~0#1 <= 65535); 126#L28 call main_#t~ret4#1 := mult(main_~m~0#1, main_~n~0#1);< 131#multENTRY ~n := #in~n;~m := #in~m; 125#L13 assume !(~m < 0); 127#L16 [2022-11-20 10:57:41,762 INFO L750 eck$LassoCheckResult]: Loop: 127#L16 assume !(0 == ~m); 133#L19 call #t~ret1 := mult(~n, ~m - 1);< 135#multENTRY ~n := #in~n;~m := #in~m; 137#L13 assume !(~m < 0); 127#L16 [2022-11-20 10:57:41,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:41,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1761229506, now seen corresponding path program 1 times [2022-11-20 10:57:41,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:41,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207216515] [2022-11-20 10:57:41,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:41,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:41,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:57:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:41,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:57:41,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:41,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1254111, now seen corresponding path program 1 times [2022-11-20 10:57:41,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:41,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846484533] [2022-11-20 10:57:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:41,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:41,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:57:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:41,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:57:41,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:41,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1744825056, now seen corresponding path program 1 times [2022-11-20 10:57:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:41,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705367344] [2022-11-20 10:57:41,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:41,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:41,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:57:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:41,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:57:41,910 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:57:41,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:57:41,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:57:41,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:57:41,910 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:57:41,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:41,910 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:57:41,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:57:41,911 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration2_Loop [2022-11-20 10:57:41,911 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:57:41,911 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:57:41,912 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:41,920 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:41,923 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:41,925 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:41,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:42,009 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:57:42,010 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:57:42,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:42,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:42,016 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:42,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 10:57:42,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:42,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:42,052 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:42,052 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:42,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:42,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:42,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:42,062 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:42,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:42,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:42,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 10:57:42,094 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:42,094 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:42,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:42,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:42,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:42,108 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:42,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:42,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:42,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 10:57:42,145 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:42,145 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:42,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:42,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:42,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:42,155 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:42,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:42,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:42,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 10:57:42,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:42,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:42,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:42,192 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:42,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 10:57:42,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:57:42,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:45,493 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:57:45,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:45,498 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:57:45,498 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:57:45,498 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:57:45,498 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:57:45,498 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:57:45,499 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:45,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:57:45,499 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:57:45,499 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration2_Loop [2022-11-20 10:57:45,499 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:57:45,499 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:57:45,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:45,512 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:45,515 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:45,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:45,537 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:45,606 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:57:45,607 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:57:45,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:45,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:45,609 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:45,613 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 [2022-11-20 10:57:45,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:45,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:45,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:45,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:45,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:45,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:45,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:45,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 10:57:45,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:45,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:45,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:45,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:45,644 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:45,655 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 [2022-11-20 10:57:45,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:45,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:45,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:45,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:45,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:45,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:45,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:45,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 10:57:45,682 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:45,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:45,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:45,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:45,692 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:45,696 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 [2022-11-20 10:57:45,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:45,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:45,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:45,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:45,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:45,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:45,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:45,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 10:57:45,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:45,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:45,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:45,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:45,737 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:45,741 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 [2022-11-20 10:57:45,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:45,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:45,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:45,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:45,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:45,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:45,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:45,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 10:57:45,774 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:57:45,794 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:57:45,794 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:57:45,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:45,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:45,798 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:45,800 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:57:45,801 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:57:45,801 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:57:45,801 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2022-11-20 10:57:45,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-20 10:57:45,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:45,805 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:57:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:45,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:57:45,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:45,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:57:45,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:45,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:45,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:45,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:45,934 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-20 10:57:45,935 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:45,983 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 32 transitions. Complement of second has 13 states. [2022-11-20 10:57:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-20 10:57:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-11-20 10:57:45,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-20 10:57:45,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:57:45,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 11 letters. Loop has 4 letters. [2022-11-20 10:57:45,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:57:45,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 7 letters. Loop has 8 letters. [2022-11-20 10:57:45,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:57:45,988 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2022-11-20 10:57:45,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:57:46,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 26 states and 31 transitions. [2022-11-20 10:57:46,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-20 10:57:46,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-20 10:57:46,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 31 transitions. [2022-11-20 10:57:46,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:57:46,002 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-20 10:57:46,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 31 transitions. [2022-11-20 10:57:46,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2022-11-20 10:57:46,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-20 10:57:46,007 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-20 10:57:46,008 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-20 10:57:46,008 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 10:57:46,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2022-11-20 10:57:46,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:57:46,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:57:46,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:57:46,011 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:46,011 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 10:57:46,011 INFO L748 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 231#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~m~0#1, main_~n~0#1, main_~res~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 246#L26 assume !!(-65535 <= main_~m~0#1 && main_~m~0#1 <= 65535); 238#L27 assume !!(-65535 <= main_~n~0#1 && main_~n~0#1 <= 65535); 239#L28 call main_#t~ret4#1 := mult(main_~m~0#1, main_~n~0#1);< 244#multENTRY ~n := #in~n;~m := #in~m; 250#L13 assume !(~m < 0); 251#L16 assume !(0 == ~m); 233#L19 call #t~ret1 := mult(~n, ~m - 1);< 252#multENTRY ~n := #in~n;~m := #in~m; 232#L13 assume ~m < 0; 234#L14 [2022-11-20 10:57:46,011 INFO L750 eck$LassoCheckResult]: Loop: 234#L14 call #t~ret0 := mult(~n, -~m);< 240#multENTRY ~n := #in~n;~m := #in~m; 242#L13 assume ~m < 0; 234#L14 [2022-11-20 10:57:46,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:46,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1744825059, now seen corresponding path program 1 times [2022-11-20 10:57:46,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:46,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053381532] [2022-11-20 10:57:46,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:46,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:46,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:46,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053381532] [2022-11-20 10:57:46,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053381532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:46,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:46,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:57:46,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922665557] [2022-11-20 10:57:46,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:46,164 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 10:57:46,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash 60546, now seen corresponding path program 2 times [2022-11-20 10:57:46,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:46,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962809279] [2022-11-20 10:57:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:46,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:46,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:57:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:57:46,182 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:57:46,280 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:57:46,281 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:57:46,281 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:57:46,281 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:57:46,281 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:57:46,281 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:46,281 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:57:46,281 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:57:46,281 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration3_Loop [2022-11-20 10:57:46,281 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:57:46,281 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:57:46,282 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:46,289 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:46,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:46,302 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:46,304 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:46,366 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:57:46,366 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:57:46,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:46,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:46,371 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:46,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:46,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:46,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 10:57:46,399 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:57:46,399 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=-6, mult_#in~n=-6} Honda state: {mult_~n=-6, mult_#in~n=-6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:57:46,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:46,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:46,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:46,409 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:46,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:57:46,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:46,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 10:57:46,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:46,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:46,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:46,464 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:46,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:57:46,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:57:46,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 10:57:47,200 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:57:47,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-20 10:57:47,204 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:57:47,204 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:57:47,204 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:57:47,204 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:57:47,204 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:57:47,205 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:47,205 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:57:47,205 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:57:47,205 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration3_Loop [2022-11-20 10:57:47,205 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:57:47,205 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:57:47,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:47,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:47,229 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:47,231 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:47,233 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:57:47,291 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:57:47,291 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:57:47,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:47,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:47,292 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:47,304 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 [2022-11-20 10:57:47,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:47,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:47,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:47,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:47,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:47,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:47,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:47,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 10:57:47,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:57:47,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-20 10:57:47,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:47,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:47,331 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:47,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-20 10:57:47,334 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 [2022-11-20 10:57:47,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:57:47,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:57:47,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:57:47,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:57:47,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:57:47,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:57:47,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:57:47,378 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:57:47,391 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-20 10:57:47,391 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 10:57:47,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:57:47,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:47,392 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:47,415 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:57:47,415 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:57:47,415 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:57:47,415 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2022-11-20 10:57:47,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-20 10:57:47,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:47,424 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:57:47,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:47,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:57:47,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:47,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:57:47,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:47,523 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-20 10:57:47,523 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 8 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:47,564 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 8. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 62 transitions. Complement of second has 9 states. [2022-11-20 10:57:47,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:57:47,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:47,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-20 10:57:47,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2022-11-20 10:57:47,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:57:47,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2022-11-20 10:57:47,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:57:47,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2022-11-20 10:57:47,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:57:47,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 62 transitions. [2022-11-20 10:57:47,578 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:57:47,580 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 45 states and 55 transitions. [2022-11-20 10:57:47,581 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-20 10:57:47,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-11-20 10:57:47,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 55 transitions. [2022-11-20 10:57:47,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:57:47,581 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 55 transitions. [2022-11-20 10:57:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 55 transitions. [2022-11-20 10:57:47,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-11-20 10:57:47,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 10 states have call successors, (13), 10 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:47,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-11-20 10:57:47,593 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-11-20 10:57:47,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:47,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:57:47,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:57:47,598 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:57:47,655 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-11-20 10:57:47,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2022-11-20 10:57:47,658 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 10:57:47,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2022-11-20 10:57:47,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 10:57:47,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 10:57:47,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 10:57:47,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:47,659 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:57:47,659 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:57:47,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:57:47,660 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:57:47,660 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 10:57:47,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:57:47,661 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 10:57:47,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 10:57:47,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:57:47 BoogieIcfgContainer [2022-11-20 10:57:47,677 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 10:57:47,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:57:47,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:57:47,678 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:57:47,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:39" (3/4) ... [2022-11-20 10:57:47,681 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:57:47,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:57:47,682 INFO L158 Benchmark]: Toolchain (without parser) took 8348.52ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 108.7MB in the beginning and 112.6MB in the end (delta: -3.9MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2022-11-20 10:57:47,682 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 148.9MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:57:47,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.52ms. Allocated memory is still 148.9MB. Free memory was 108.7MB in the beginning and 99.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:57:47,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.74ms. Allocated memory is still 148.9MB. Free memory was 99.6MB in the beginning and 98.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:57:47,684 INFO L158 Benchmark]: Boogie Preprocessor took 24.44ms. Allocated memory is still 148.9MB. Free memory was 98.2MB in the beginning and 97.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:57:47,684 INFO L158 Benchmark]: RCFGBuilder took 340.42ms. Allocated memory is still 148.9MB. Free memory was 97.1MB in the beginning and 87.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:57:47,684 INFO L158 Benchmark]: BuchiAutomizer took 7681.56ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 87.8MB in the beginning and 112.6MB in the end (delta: -24.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 10:57:47,684 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 188.7MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:57:47,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 148.9MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.52ms. Allocated memory is still 148.9MB. Free memory was 108.7MB in the beginning and 99.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.74ms. Allocated memory is still 148.9MB. Free memory was 99.6MB in the beginning and 98.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.44ms. Allocated memory is still 148.9MB. Free memory was 98.2MB in the beginning and 97.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 340.42ms. Allocated memory is still 148.9MB. Free memory was 97.1MB in the beginning and 87.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 7681.56ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 87.8MB in the beginning and 112.6MB in the end (delta: -24.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 188.7MB. Free memory is still 112.6MB. 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * \old(m) and consists of 4 locations. One deterministic module has affine ranking function m and consists of 5 locations. One deterministic module has affine ranking function m and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 6.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 46 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf92 smp100 dnf100 smp100 tf110 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 10:57:47,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:47,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd51ff5-c036-4ee7-aafb-d64e868cba52/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE