./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/MultCommutative-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/MultCommutative-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce29b37e076ab683230ebf17073db3b7759ea39570dd2ef64322b6d43bb636cd --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:13:54,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:13:54,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:13:54,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:13:54,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:13:54,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:13:54,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:13:54,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:13:54,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:13:54,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:13:54,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:13:54,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:13:54,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:13:54,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:13:54,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:13:54,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:13:54,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:13:54,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:13:54,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:13:54,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:13:54,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:13:54,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:13:54,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:13:54,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:13:54,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:13:54,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:13:54,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:13:54,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:13:54,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:13:54,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:13:54,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:13:54,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:13:54,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:13:54,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:13:54,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:13:54,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:13:54,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:13:54,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:13:54,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:13:54,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:13:54,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:13:54,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 19:13:54,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:13:54,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:13:54,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:13:54,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:13:54,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:13:54,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:13:54,937 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:13:54,937 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 19:13:54,937 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 19:13:54,937 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 19:13:54,937 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 19:13:54,937 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 19:13:54,937 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 19:13:54,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:13:54,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:13:54,939 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 19:13:54,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:13:54,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 19:13:54,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:13:54,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:13:54,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:13:54,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:13:54,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:13:54,940 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 19:13:54,940 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_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce29b37e076ab683230ebf17073db3b7759ea39570dd2ef64322b6d43bb636cd [2021-12-06 19:13:55,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:13:55,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:13:55,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:13:55,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:13:55,154 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:13:55,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/recursive/MultCommutative-2.c [2021-12-06 19:13:55,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/data/b7910dc91/f16798de287542c7a37222a443f0b6f8/FLAGc371023d6 [2021-12-06 19:13:55,548 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:13:55,549 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/sv-benchmarks/c/recursive/MultCommutative-2.c [2021-12-06 19:13:55,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/data/b7910dc91/f16798de287542c7a37222a443f0b6f8/FLAGc371023d6 [2021-12-06 19:13:55,563 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/data/b7910dc91/f16798de287542c7a37222a443f0b6f8 [2021-12-06 19:13:55,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:13:55,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:13:55,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:13:55,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:13:55,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:13:55,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367c42d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55, skipping insertion in model container [2021-12-06 19:13:55,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:13:55,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:13:55,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/sv-benchmarks/c/recursive/MultCommutative-2.c[970,983] [2021-12-06 19:13:55,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:13:55,727 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:13:55,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/sv-benchmarks/c/recursive/MultCommutative-2.c[970,983] [2021-12-06 19:13:55,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:13:55,756 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:13:55,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55 WrapperNode [2021-12-06 19:13:55,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:13:55,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:13:55,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:13:55,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:13:55,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,788 INFO L137 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2021-12-06 19:13:55,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:13:55,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:13:55,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:13:55,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:13:55,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:13:55,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:13:55,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:13:55,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:13:55,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (1/1) ... [2021-12-06 19:13:55,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:55,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:55,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:55,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 19:13:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:13:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2021-12-06 19:13:55,869 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2021-12-06 19:13:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:13:55,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:13:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:13:55,917 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:13:55,919 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:13:56,001 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:13:56,007 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:13:56,008 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 19:13:56,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:13:56 BoogieIcfgContainer [2021-12-06 19:13:56,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:13:56,011 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 19:13:56,011 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 19:13:56,015 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 19:13:56,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:13:56,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 07:13:55" (1/3) ... [2021-12-06 19:13:56,017 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3940f80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:13:56, skipping insertion in model container [2021-12-06 19:13:56,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:13:56,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:55" (2/3) ... [2021-12-06 19:13:56,017 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3940f80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:13:56, skipping insertion in model container [2021-12-06 19:13:56,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:13:56,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:13:56" (3/3) ... [2021-12-06 19:13:56,019 INFO L388 chiAutomizerObserver]: Analyzing ICFG MultCommutative-2.c [2021-12-06 19:13:56,058 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 19:13:56,058 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 19:13:56,058 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 19:13:56,058 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 19:13:56,058 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 19:13:56,058 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 19:13:56,058 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 19:13:56,058 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 19:13:56,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 19:13:56,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 19:13:56,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:13:56,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:13:56,097 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 19:13:56,097 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:13:56,098 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 19:13:56,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 19:13:56,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 19:13:56,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:13:56,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:13:56,100 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 19:13:56,100 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:13:56,106 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 8#L29true assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 11#L33true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 14#L36true call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 7#multENTRYtrue [2021-12-06 19:13:56,106 INFO L793 eck$LassoCheckResult]: Loop: 7#multENTRYtrue ~n := #in~n;~m := #in~m; 4#L18true assume ~m < 0; 20#L19true call #t~ret4 := mult(~n, -~m);< 7#multENTRYtrue [2021-12-06 19:13:56,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:56,110 INFO L85 PathProgramCache]: Analyzing trace with hash 42056133, now seen corresponding path program 1 times [2021-12-06 19:13:56,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:56,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461969239] [2021-12-06 19:13:56,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:56,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:56,185 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:56,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:56,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:56,208 INFO L85 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 1 times [2021-12-06 19:13:56,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:56,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632138176] [2021-12-06 19:13:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:56,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:56,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:56,220 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:56,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:56,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1236192095, now seen corresponding path program 1 times [2021-12-06 19:13:56,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:56,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955988817] [2021-12-06 19:13:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:56,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:13:56,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:13:56,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955988817] [2021-12-06 19:13:56,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955988817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:13:56,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:13:56,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:13:56,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989792941] [2021-12-06 19:13:56,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:13:56,375 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:56,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:56,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:56,376 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:56,376 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:13:56,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:56,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:56,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2021-12-06 19:13:56,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:56,377 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:56,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,446 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:56,447 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:13:56,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 19:13:56,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:56,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:56,468 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:56,468 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:56,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:13:56,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 19:13:56,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:56,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:56,514 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:56,514 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:56,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 19:13:56,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,535 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 19:13:56,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:56,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:56,545 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:56,546 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:56,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 19:13:56,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 19:13:56,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:56,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:56,575 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:56,576 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:56,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 19:13:56,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 19:13:56,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:56,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:56,605 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:56,606 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:56,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 19:13:56,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,625 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 19:13:56,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:56,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:56,636 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:56,636 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:56,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 19:13:56,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,655 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 19:13:56,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:56,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:56,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-06 19:13:56,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,686 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 19:13:56,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:13:56,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:56,726 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:13:56,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 19:13:56,729 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:56,729 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:56,729 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:56,729 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:56,729 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:13:56,729 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,729 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:56,729 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:56,730 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2021-12-06 19:13:56,730 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:56,730 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:56,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:56,764 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:56,767 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:13:56,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,769 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 19:13:56,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:56,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:56,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:56,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:56,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:56,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:56,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:56,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:56,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:56,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 19:13:56,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,803 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 19:13:56,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:56,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:56,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:56,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:56,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:56,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:56,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:56,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:56,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:56,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 19:13:56,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,838 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 19:13:56,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:56,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:56,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:56,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:56,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:56,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:56,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:56,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:56,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:56,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 19:13:56,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,869 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 19:13:56,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:56,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:56,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:56,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:56,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:56,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:56,879 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:56,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:56,881 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:56,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 19:13:56,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,904 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 19:13:56,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:56,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:56,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:56,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:56,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:56,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:56,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:56,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:56,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:56,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 19:13:56,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,933 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 19:13:56,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:56,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:56,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:56,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:56,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:56,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:56,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:56,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:56,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:56,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 19:13:56,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,964 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 19:13:56,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:56,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:56,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:56,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:56,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:56,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:56,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:56,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:56,975 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:13:56,978 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-06 19:13:56,978 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:13:56,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:56,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:56,980 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:56,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 19:13:56,981 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:13:56,981 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:13:56,981 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:13:56,982 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2021-12-06 19:13:57,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 19:13:57,003 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:13:57,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:57,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:13:57,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:57,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:13:57,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:13:57,112 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-06 19:13:57,113 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2021-12-06 19:13:57,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4). 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 51 states and 66 transitions. Complement of second has 12 states. [2021-12-06 19:13:57,172 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 [2021-12-06 19:13:57,175 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) [2021-12-06 19:13:57,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-06 19:13:57,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2021-12-06 19:13:57,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:57,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2021-12-06 19:13:57,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:57,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2021-12-06 19:13:57,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:57,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 66 transitions. [2021-12-06 19:13:57,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 19:13:57,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 32 states and 45 transitions. [2021-12-06 19:13:57,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-06 19:13:57,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-12-06 19:13:57,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2021-12-06 19:13:57,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:13:57,189 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 45 transitions. [2021-12-06 19:13:57,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2021-12-06 19:13:57,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2021-12-06 19:13:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-06 19:13:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-12-06 19:13:57,210 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-12-06 19:13:57,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:13:57,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:13:57,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:13:57,213 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-06 19:13:57,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:13:57,250 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2021-12-06 19:13:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:13:57,251 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-12-06 19:13:57,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 19:13:57,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 19:13:57,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 34 transitions. [2021-12-06 19:13:57,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-12-06 19:13:57,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-12-06 19:13:57,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2021-12-06 19:13:57,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:13:57,256 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-12-06 19:13:57,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2021-12-06 19:13:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2021-12-06 19:13:57,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 19:13:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-12-06 19:13:57,260 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-12-06 19:13:57,260 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-12-06 19:13:57,260 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 19:13:57,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2021-12-06 19:13:57,261 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 19:13:57,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:13:57,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:13:57,262 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:13:57,262 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:13:57,262 INFO L791 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 197#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 201#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 202#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 194#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 200#multENTRY ~n := #in~n;~m := #in~m; 193#L18 assume !(~m < 0); 195#L21 assume !(0 == ~m); 204#L24 call #t~ret5 := mult(~n, ~m - 1);< 210#multENTRY [2021-12-06 19:13:57,262 INFO L793 eck$LassoCheckResult]: Loop: 210#multENTRY ~n := #in~n;~m := #in~m; 212#L18 assume ~m < 0; 208#L19 call #t~ret4 := mult(~n, -~m);< 210#multENTRY [2021-12-06 19:13:57,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:57,263 INFO L85 PathProgramCache]: Analyzing trace with hash 332752684, now seen corresponding path program 1 times [2021-12-06 19:13:57,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:57,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831778599] [2021-12-06 19:13:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:57,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:57,276 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:57,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:57,287 INFO L85 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 2 times [2021-12-06 19:13:57,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:57,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298554191] [2021-12-06 19:13:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:57,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:57,290 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:57,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:57,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:57,293 INFO L85 PathProgramCache]: Analyzing trace with hash 250690010, now seen corresponding path program 1 times [2021-12-06 19:13:57,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:57,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665103576] [2021-12-06 19:13:57,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:57,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:57,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:13:57,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:13:57,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665103576] [2021-12-06 19:13:57,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665103576] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:13:57,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:13:57,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:13:57,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358289215] [2021-12-06 19:13:57,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:13:57,361 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:57,361 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:57,361 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:57,361 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:57,361 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:13:57,361 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,361 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:57,361 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:57,361 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2021-12-06 19:13:57,361 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:57,361 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:57,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,395 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:57,395 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:13:57,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,396 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 19:13:57,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:57,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:57,408 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:57,408 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:57,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 19:13:57,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,438 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 19:13:57,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:57,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:57,448 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:57,448 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:57,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 19:13:57,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,468 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 19:13:57,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:57,469 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:57,477 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:57,478 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:57,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 19:13:57,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,497 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 19:13:57,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:57,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:57,507 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:57,508 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:57,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 19:13:57,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,527 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 19:13:57,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:57,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:57,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 19:13:57,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,556 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 19:13:57,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:13:57,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:57,628 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:13:57,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 19:13:57,631 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:57,631 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:57,631 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:57,631 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:57,631 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:13:57,631 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,631 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:57,631 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:57,631 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2021-12-06 19:13:57,631 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:57,631 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:57,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:57,660 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:57,660 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:13:57,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,661 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 19:13:57,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:57,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:57,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:57,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:57,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:57,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:57,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:57,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:57,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:57,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 19:13:57,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,692 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 19:13:57,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:57,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:57,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:57,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:57,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:57,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:57,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:57,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:57,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:57,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 19:13:57,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,721 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 19:13:57,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:57,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:57,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:57,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:57,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:57,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:57,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:57,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:57,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:57,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-06 19:13:57,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,752 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 19:13:57,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:57,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:57,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:57,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:57,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:57,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:57,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:57,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:57,764 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:13:57,766 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-06 19:13:57,766 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:13:57,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:57,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:57,768 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:57,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 19:13:57,773 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:13:57,773 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:13:57,773 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:13:57,773 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2021-12-06 19:13:57,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 19:13:57,792 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:13:57,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:57,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:13:57,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:57,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:13:57,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:13:57,856 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-06 19:13:57,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 6 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-12-06 19:13:57,900 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 6. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 73 states and 92 transitions. Complement of second has 15 states. [2021-12-06 19:13:57,901 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 [2021-12-06 19:13:57,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-12-06 19:13:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2021-12-06 19:13:57,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2021-12-06 19:13:57,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:57,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2021-12-06 19:13:57,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:57,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-06 19:13:57,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:57,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 92 transitions. [2021-12-06 19:13:57,905 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-06 19:13:57,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 51 states and 66 transitions. [2021-12-06 19:13:57,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-12-06 19:13:57,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-12-06 19:13:57,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 66 transitions. [2021-12-06 19:13:57,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:13:57,907 INFO L681 BuchiCegarLoop]: Abstraction has 51 states and 66 transitions. [2021-12-06 19:13:57,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 66 transitions. [2021-12-06 19:13:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-12-06 19:13:57,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 33 states have internal predecessors, (38), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 19:13:57,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2021-12-06 19:13:57,912 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2021-12-06 19:13:57,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:13:57,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:13:57,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:13:57,912 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:13:57,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:13:57,940 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2021-12-06 19:13:57,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:13:57,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 60 transitions. [2021-12-06 19:13:57,942 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-12-06 19:13:57,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 48 transitions. [2021-12-06 19:13:57,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-12-06 19:13:57,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-12-06 19:13:57,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 48 transitions. [2021-12-06 19:13:57,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:13:57,944 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-12-06 19:13:57,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 48 transitions. [2021-12-06 19:13:57,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-06 19:13:57,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 32 states have internal predecessors, (33), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-06 19:13:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-12-06 19:13:57,948 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-12-06 19:13:57,948 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-12-06 19:13:57,948 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 19:13:57,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 48 transitions. [2021-12-06 19:13:57,949 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-12-06 19:13:57,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:13:57,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:13:57,950 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:13:57,950 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:13:57,950 INFO L791 eck$LassoCheckResult]: Stem: 468#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 469#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 479#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 480#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 471#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 481#multENTRY ~n := #in~n;~m := #in~m; 496#L18 assume !(~m < 0); 494#L21 assume 0 == ~m;#res := 0; 493#multFINAL assume true; 470#multEXIT >#46#return; 472#L36-1 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 475#L37 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 473#multENTRY [2021-12-06 19:13:57,950 INFO L793 eck$LassoCheckResult]: Loop: 473#multENTRY ~n := #in~n;~m := #in~m; 476#L18 assume ~m < 0; 474#L19 call #t~ret4 := mult(~n, -~m);< 473#multENTRY [2021-12-06 19:13:57,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:57,950 INFO L85 PathProgramCache]: Analyzing trace with hash 248917746, now seen corresponding path program 1 times [2021-12-06 19:13:57,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:57,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142382066] [2021-12-06 19:13:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:57,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:57,957 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:57,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:57,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:57,965 INFO L85 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 3 times [2021-12-06 19:13:57,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:57,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992905375] [2021-12-06 19:13:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:57,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:57,968 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:57,970 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:57,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1899948972, now seen corresponding path program 1 times [2021-12-06 19:13:57,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:57,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340814248] [2021-12-06 19:13:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:57,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 19:13:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:13:58,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:13:58,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340814248] [2021-12-06 19:13:58,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340814248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:13:58,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:13:58,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:13:58,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251477701] [2021-12-06 19:13:58,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:13:58,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-06 19:13:58,041 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:58,041 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:58,041 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:58,041 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:58,041 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:13:58,041 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,041 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:58,041 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:58,041 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2021-12-06 19:13:58,042 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:58,042 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:58,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,068 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:58,068 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:13:58,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,069 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 19:13:58,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:58,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:58,079 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:58,079 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:58,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-06 19:13:58,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,098 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-06 19:13:58,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:58,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:58,108 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:58,108 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:58,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-06 19:13:58,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,128 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-06 19:13:58,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:58,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:58,137 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:58,137 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:58,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-06 19:13:58,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,157 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-06 19:13:58,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:58,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:58,167 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:58,167 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:58,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-06 19:13:58,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,187 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-06 19:13:58,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:58,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:58,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-06 19:13:58,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,216 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-06 19:13:58,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:13:58,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:58,254 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:13:58,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-06 19:13:58,256 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:58,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:58,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:58,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:58,257 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:13:58,257 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,257 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:58,257 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:58,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2021-12-06 19:13:58,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:58,257 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:58,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,287 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:58,287 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:13:58,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,288 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-06 19:13:58,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:58,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-06 19:13:58,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,319 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-06 19:13:58,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:58,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-06 19:13:58,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,351 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-06 19:13:58,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:58,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-12-06 19:13:58,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,381 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-06 19:13:58,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:58,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-06 19:13:58,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,411 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-06 19:13:58,413 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,422 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:13:58,424 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-06 19:13:58,424 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:13:58,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,425 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-06 19:13:58,426 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:13:58,426 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:13:58,426 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:13:58,426 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2021-12-06 19:13:58,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-06 19:13:58,446 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:13:58,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:58,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:13:58,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:58,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:13:58,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:58,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:13:58,533 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-06 19:13:58,533 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 48 transitions. cyclomatic complexity: 9 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:13:58,579 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 48 transitions. cyclomatic complexity: 9. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 82 states and 91 transitions. Complement of second has 14 states. [2021-12-06 19:13:58,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 19:13:58,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:13:58,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-12-06 19:13:58,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2021-12-06 19:13:58,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:58,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2021-12-06 19:13:58,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:58,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2021-12-06 19:13:58,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:58,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 91 transitions. [2021-12-06 19:13:58,583 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-06 19:13:58,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 63 states and 71 transitions. [2021-12-06 19:13:58,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2021-12-06 19:13:58,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2021-12-06 19:13:58,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 71 transitions. [2021-12-06 19:13:58,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:13:58,585 INFO L681 BuchiCegarLoop]: Abstraction has 63 states and 71 transitions. [2021-12-06 19:13:58,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 71 transitions. [2021-12-06 19:13:58,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2021-12-06 19:13:58,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-06 19:13:58,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-12-06 19:13:58,588 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-12-06 19:13:58,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:13:58,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:13:58,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:13:58,589 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:13:58,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:13:58,604 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2021-12-06 19:13:58,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:13:58,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 41 transitions. [2021-12-06 19:13:58,605 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-06 19:13:58,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 40 transitions. [2021-12-06 19:13:58,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-12-06 19:13:58,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-12-06 19:13:58,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 40 transitions. [2021-12-06 19:13:58,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:13:58,606 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-12-06 19:13:58,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 40 transitions. [2021-12-06 19:13:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2021-12-06 19:13:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-06 19:13:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-12-06 19:13:58,609 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-12-06 19:13:58,609 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-12-06 19:13:58,609 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 19:13:58,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 36 transitions. [2021-12-06 19:13:58,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-06 19:13:58,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:13:58,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:13:58,610 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:13:58,610 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 19:13:58,610 INFO L791 eck$LassoCheckResult]: Stem: 758#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 759#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 764#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 765#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 767#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 768#multENTRY ~n := #in~n;~m := #in~m; 776#L18 assume !(~m < 0); 775#L21 assume 0 == ~m;#res := 0; 774#multFINAL assume true; 773#multEXIT >#46#return; 769#L36-1 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 757#L37 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 763#multENTRY [2021-12-06 19:13:58,610 INFO L793 eck$LassoCheckResult]: Loop: 763#multENTRY ~n := #in~n;~m := #in~m; 754#L18 assume !(~m < 0); 756#L21 assume !(0 == ~m); 755#L24 call #t~ret5 := mult(~n, ~m - 1);< 763#multENTRY [2021-12-06 19:13:58,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:58,610 INFO L85 PathProgramCache]: Analyzing trace with hash 248917746, now seen corresponding path program 2 times [2021-12-06 19:13:58,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:58,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955671675] [2021-12-06 19:13:58,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:58,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:58,616 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:58,623 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:58,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:58,623 INFO L85 PathProgramCache]: Analyzing trace with hash 929640, now seen corresponding path program 1 times [2021-12-06 19:13:58,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:58,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347600984] [2021-12-06 19:13:58,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:58,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:58,626 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:58,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:58,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1231125977, now seen corresponding path program 1 times [2021-12-06 19:13:58,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:58,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149517751] [2021-12-06 19:13:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:58,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:58,635 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:58,642 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:58,677 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:58,677 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:58,677 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:58,677 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:58,677 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:13:58,677 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,677 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:58,677 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:58,677 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2021-12-06 19:13:58,677 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:58,677 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:58,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,711 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:58,711 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:13:58,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,712 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-06 19:13:58,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:58,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:58,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:58,722 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:58,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-06 19:13:58,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,741 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-06 19:13:58,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:58,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:58,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-06 19:13:58,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,770 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-06 19:13:58,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:13:58,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:58,810 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:13:58,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-06 19:13:58,812 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:58,812 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:58,812 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:58,812 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:58,812 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:13:58,812 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,812 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:58,813 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:58,813 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2021-12-06 19:13:58,813 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:58,813 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:58,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:58,844 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:58,845 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:13:58,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,846 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-06 19:13:58,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:58,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-06 19:13:58,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,877 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-06 19:13:58,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,888 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:58,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-06 19:13:58,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,907 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-06 19:13:58,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:58,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-06 19:13:58,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,936 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-06 19:13:58,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:58,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-06 19:13:58,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,965 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-06 19:13:58,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:58,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:58,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:58,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:58,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:58,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:58,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:58,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:58,977 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:13:58,980 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:13:58,980 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 19:13:58,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:58,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:58,981 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:58,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-06 19:13:58,982 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:13:58,982 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:13:58,982 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:13:58,982 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2021-12-06 19:13:59,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-12-06 19:13:59,000 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:13:59,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:59,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:13:59,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:59,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:13:59,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:59,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-06 19:13:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:13:59,093 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2021-12-06 19:13:59,093 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 36 transitions. cyclomatic complexity: 6 Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:13:59,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-06 19:13:59,139 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 36 transitions. cyclomatic complexity: 6. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 42 states and 46 transitions. Complement of second has 17 states. [2021-12-06 19:13:59,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-06 19:13:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 19:13:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2021-12-06 19:13:59,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 4 letters. [2021-12-06 19:13:59,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:59,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 16 letters. Loop has 4 letters. [2021-12-06 19:13:59,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:59,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 8 letters. [2021-12-06 19:13:59,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:59,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 46 transitions. [2021-12-06 19:13:59,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 19:13:59,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 16 states and 16 transitions. [2021-12-06 19:13:59,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-06 19:13:59,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-06 19:13:59,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 16 transitions. [2021-12-06 19:13:59,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:13:59,144 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-12-06 19:13:59,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 16 transitions. [2021-12-06 19:13:59,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 9. [2021-12-06 19:13:59,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2021-12-06 19:13:59,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-12-06 19:13:59,145 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-12-06 19:13:59,145 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-12-06 19:13:59,146 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 19:13:59,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2021-12-06 19:13:59,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 19:13:59,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:13:59,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:13:59,146 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 19:13:59,146 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 19:13:59,147 INFO L791 eck$LassoCheckResult]: Stem: 923#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 924#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 926#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 927#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 922#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 925#multENTRY [2021-12-06 19:13:59,147 INFO L793 eck$LassoCheckResult]: Loop: 925#multENTRY ~n := #in~n;~m := #in~m; 919#L18 assume !(~m < 0); 921#L21 assume !(0 == ~m); 920#L24 call #t~ret5 := mult(~n, ~m - 1);< 925#multENTRY [2021-12-06 19:13:59,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:59,147 INFO L85 PathProgramCache]: Analyzing trace with hash 42056133, now seen corresponding path program 2 times [2021-12-06 19:13:59,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:59,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685588772] [2021-12-06 19:13:59,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:59,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:59,153 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:59,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:59,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:59,159 INFO L85 PathProgramCache]: Analyzing trace with hash 929640, now seen corresponding path program 2 times [2021-12-06 19:13:59,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:59,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395047912] [2021-12-06 19:13:59,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:59,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:59,163 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:59,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:59,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:59,166 INFO L85 PathProgramCache]: Analyzing trace with hash 332752684, now seen corresponding path program 2 times [2021-12-06 19:13:59,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:13:59,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634491001] [2021-12-06 19:13:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:13:59,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:13:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:59,172 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:13:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:13:59,178 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:13:59,208 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:59,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:59,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:59,208 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:59,208 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:13:59,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:59,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:59,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2021-12-06 19:13:59,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:59,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:59,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,237 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:59,237 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:13:59,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,238 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-06 19:13:59,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:59,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:59,248 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:59,248 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:59,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-06 19:13:59,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,267 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-06 19:13:59,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:59,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:59,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:59,277 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:59,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-12-06 19:13:59,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,295 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-06 19:13:59,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:59,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:59,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:13:59,305 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:13:59,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-12-06 19:13:59,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,323 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-06 19:13:59,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:13:59,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:59,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-12-06 19:13:59,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,351 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-06 19:13:59,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:13:59,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:13:59,383 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:13:59,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-12-06 19:13:59,386 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:13:59,386 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:13:59,386 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:13:59,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:13:59,386 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:13:59,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:13:59,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:13:59,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2021-12-06 19:13:59,386 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:13:59,386 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:13:59,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:13:59,419 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:13:59,419 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:13:59,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,420 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-06 19:13:59,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:59,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:59,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:59,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:59,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:59,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:59,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:59,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:59,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:59,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-12-06 19:13:59,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,448 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-06 19:13:59,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:59,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:59,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:59,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:59,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:59,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:59,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:59,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:59,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:59,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-12-06 19:13:59,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,479 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-06 19:13:59,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:59,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:59,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:59,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:59,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:59,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:59,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:59,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:59,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:13:59,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-12-06 19:13:59,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,508 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-06 19:13:59,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:13:59,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:13:59,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:13:59,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:13:59,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:13:59,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:13:59,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:13:59,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:13:59,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:13:59,521 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:13:59,521 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 19:13:59,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:13:59,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:13:59,522 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:13:59,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-06 19:13:59,523 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:13:59,523 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:13:59,523 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:13:59,523 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2021-12-06 19:13:59,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-12-06 19:13:59,541 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:13:59,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:13:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:59,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:13:59,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:13:59,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:13:59,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:13:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:13:59,587 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-06 19:13:59,587 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1 Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-12-06 19:13:59,611 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 19 states and 19 transitions. Complement of second has 15 states. [2021-12-06 19:13:59,611 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 [2021-12-06 19:13:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-12-06 19:13:59,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2021-12-06 19:13:59,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-06 19:13:59,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:59,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2021-12-06 19:13:59,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:59,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2021-12-06 19:13:59,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:13:59,613 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 19 transitions. [2021-12-06 19:13:59,613 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 19:13:59,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-12-06 19:13:59,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 19:13:59,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 19:13:59,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 19:13:59,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:13:59,613 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:13:59,613 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:13:59,613 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:13:59,613 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 19:13:59,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 19:13:59,614 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 19:13:59,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 19:13:59,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 07:13:59 BoogieIcfgContainer [2021-12-06 19:13:59,618 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 19:13:59,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:13:59,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:13:59,619 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:13:59,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:13:56" (3/4) ... [2021-12-06 19:13:59,621 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:13:59,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:13:59,621 INFO L158 Benchmark]: Toolchain (without parser) took 4055.66ms. Allocated memory was 77.6MB in the beginning and 146.8MB in the end (delta: 69.2MB). Free memory was 42.6MB in the beginning and 72.8MB in the end (delta: -30.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2021-12-06 19:13:59,621 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 77.6MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:13:59,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.76ms. Allocated memory was 77.6MB in the beginning and 121.6MB in the end (delta: 44.0MB). Free memory was 42.4MB in the beginning and 98.8MB in the end (delta: -56.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-12-06 19:13:59,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.11ms. Allocated memory is still 121.6MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:13:59,622 INFO L158 Benchmark]: Boogie Preprocessor took 16.62ms. Allocated memory is still 121.6MB. Free memory was 97.5MB in the beginning and 96.6MB in the end (delta: 898.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:13:59,622 INFO L158 Benchmark]: RCFGBuilder took 203.49ms. Allocated memory is still 121.6MB. Free memory was 96.2MB in the beginning and 87.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 19:13:59,623 INFO L158 Benchmark]: BuchiAutomizer took 3607.35ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 87.1MB in the beginning and 72.8MB in the end (delta: 14.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2021-12-06 19:13:59,623 INFO L158 Benchmark]: Witness Printer took 2.36ms. Allocated memory is still 146.8MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:13:59,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 77.6MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.76ms. Allocated memory was 77.6MB in the beginning and 121.6MB in the end (delta: 44.0MB). Free memory was 42.4MB in the beginning and 98.8MB in the end (delta: -56.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.11ms. Allocated memory is still 121.6MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.62ms. Allocated memory is still 121.6MB. Free memory was 97.5MB in the beginning and 96.6MB in the end (delta: 898.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.49ms. Allocated memory is still 121.6MB. Free memory was 96.2MB in the beginning and 87.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3607.35ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 87.1MB in the beginning and 72.8MB in the end (delta: 14.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. * Witness Printer took 2.36ms. Allocated memory is still 146.8MB. Free memory is still 72.8MB. 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 8 terminating modules (3 trivial, 5 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 -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 6 locations. One deterministic module has affine ranking function \old(m) and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 42 states and ocurred in iteration 2. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 167 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 128 mSDtfsCounter, 167 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf94 smp87 dnf100 smp100 tf112 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 19:13:59,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-06 19:13:59,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6090d4-222c-4e40-8bda-f186ca635591/bin/uautomizer-DrprNOufMa/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