./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/MultCommutative-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8 --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:09:40,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:09:40,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:09:40,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:09:40,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:09:40,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:09:40,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:09:40,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:09:40,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:09:40,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:09:40,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:09:40,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:09:40,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:09:40,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:09:40,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:09:40,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:09:40,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:09:40,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:09:40,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:09:40,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:09:40,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:09:40,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:09:40,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:09:40,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:09:40,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:09:40,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:09:40,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:09:40,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:09:40,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:09:40,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:09:40,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:09:40,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:09:40,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:09:40,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:09:40,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:09:40,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:09:40,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:09:40,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:09:40,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:09:40,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:09:40,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:09:40,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 12:09:40,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:09:40,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:09:40,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:09:40,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:09:40,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:09:40,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:09:40,631 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:09:40,631 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:09:40,631 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:09:40,631 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:09:40,633 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:09:40,633 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:09:40,633 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:09:40,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:09:40,634 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:09:40,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:09:40,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:09:40,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:09:40,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:09:40,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:09:40,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:09:40,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:09:40,636 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:09:40,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:09:40,636 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:09:40,636 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:09:40,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:09:40,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:09:40,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:09:40,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:09:40,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:09:40,639 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:09:40,640 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_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce29b37e076ab683230ebf17073db3b7759ea39570dd2ef64322b6d43bb636cd [2022-11-16 12:09:40,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:09:40,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:09:40,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:09:40,965 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:09:40,966 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:09:40,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/recursive/MultCommutative-2.c [2022-11-16 12:09:41,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/data/ffdd2e21a/9dcefa795ad14d6eafe8883a78267067/FLAG9cad2899e [2022-11-16 12:09:41,506 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:09:41,506 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/sv-benchmarks/c/recursive/MultCommutative-2.c [2022-11-16 12:09:41,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/data/ffdd2e21a/9dcefa795ad14d6eafe8883a78267067/FLAG9cad2899e [2022-11-16 12:09:41,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/data/ffdd2e21a/9dcefa795ad14d6eafe8883a78267067 [2022-11-16 12:09:41,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:09:41,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:09:41,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:41,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:09:41,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:09:41,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:41" (1/1) ... [2022-11-16 12:09:41,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d9360c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:41, skipping insertion in model container [2022-11-16 12:09:41,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:41" (1/1) ... [2022-11-16 12:09:41,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:09:41,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:09:42,159 WARN L229 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_734042df-2f19-471f-a083-82a8a6230ea7/sv-benchmarks/c/recursive/MultCommutative-2.c[970,983] [2022-11-16 12:09:42,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:42,174 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:09:42,200 WARN L229 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_734042df-2f19-471f-a083-82a8a6230ea7/sv-benchmarks/c/recursive/MultCommutative-2.c[970,983] [2022-11-16 12:09:42,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:42,219 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:09:42,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42 WrapperNode [2022-11-16 12:09:42,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:42,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:42,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:09:42,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:09:42,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,268 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-11-16 12:09:42,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:42,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:09:42,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:09:42,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:09:42,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:09:42,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:09:42,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:09:42,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:09:42,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:42,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:42,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:42,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:09:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:09:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2022-11-16 12:09:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2022-11-16 12:09:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:09:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:09:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:09:42,529 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:09:42,533 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:09:42,725 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:09:42,744 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:09:42,745 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:09:42,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:42 BoogieIcfgContainer [2022-11-16 12:09:42,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:09:42,748 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:09:42,748 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:09:42,754 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:09:42,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:09:42,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:09:41" (1/3) ... [2022-11-16 12:09:42,762 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@709fecb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:09:42, skipping insertion in model container [2022-11-16 12:09:42,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:09:42,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (2/3) ... [2022-11-16 12:09:42,763 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@709fecb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:09:42, skipping insertion in model container [2022-11-16 12:09:42,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:09:42,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:42" (3/3) ... [2022-11-16 12:09:42,765 INFO L332 chiAutomizerObserver]: Analyzing ICFG MultCommutative-2.c [2022-11-16 12:09:42,880 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:09:42,880 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:09:42,881 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:09:42,881 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:09:42,881 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:09:42,881 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:09:42,881 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:09:42,882 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:09:42,886 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) [2022-11-16 12:09:42,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 12:09:42,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:09:42,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:09:42,930 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-16 12:09:42,930 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 12:09:42,931 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:09:42,931 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) [2022-11-16 12:09:42,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 12:09:42,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:09:42,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:09:42,938 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-16 12:09:42,939 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 12:09:42,949 INFO L748 eck$LassoCheckResult]: Stem: 4#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); 12#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; 7#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; 10#L33true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 13#L36true call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 6#multENTRYtrue [2022-11-16 12:09:42,949 INFO L750 eck$LassoCheckResult]: Loop: 6#multENTRYtrue ~n := #in~n;~m := #in~m; 3#L18true assume ~m < 0; 19#L19true call #t~ret4 := mult(~n, -~m);< 6#multENTRYtrue [2022-11-16 12:09:42,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:42,963 INFO L85 PathProgramCache]: Analyzing trace with hash 42056133, now seen corresponding path program 1 times [2022-11-16 12:09:42,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:42,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972474035] [2022-11-16 12:09:42,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:42,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:43,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:43,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:43,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:43,111 INFO L85 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 1 times [2022-11-16 12:09:43,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:43,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895941753] [2022-11-16 12:09:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:43,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:43,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:43,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:43,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:43,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1236192095, now seen corresponding path program 1 times [2022-11-16 12:09:43,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:43,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493166231] [2022-11-16 12:09:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:43,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:43,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:43,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:43,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493166231] [2022-11-16 12:09:43,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493166231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:43,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:43,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:09:43,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466549539] [2022-11-16 12:09:43,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:43,451 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:43,452 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:43,452 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:43,452 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:43,453 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:09:43,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:43,453 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:43,453 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2022-11-16 12:09:43,454 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:43,454 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:43,471 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,483 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,486 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,498 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,502 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,565 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:43,566 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:09:43,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:43,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:43,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 12:09:43,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:43,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:43,630 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:43,631 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:43,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:43,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:43,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:43,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 12:09:43,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:43,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:43,687 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:43,687 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:43,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:43,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:43,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:43,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:43,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:43,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 12:09:43,728 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:43,729 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:43,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:43,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:43,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:43,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:43,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:43,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 12:09:43,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:43,783 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:43,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:43,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:43,792 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:43,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 12:09:43,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:43,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:43,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:43,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:43,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-16 12:09:43,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:43,835 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:43,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:43,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:43,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 12:09:43,870 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:43,870 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:43,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:43,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:43,881 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:43,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:43,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:43,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 12:09:43,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:43,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:43,929 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:43,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 12:09:43,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:09:43,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:43,966 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:09:43,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:43,970 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:43,970 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:43,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:43,970 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:43,970 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:09:43,970 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:43,970 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:43,970 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:43,970 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2022-11-16 12:09:43,970 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:43,970 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:43,972 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,977 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,988 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,994 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:43,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:44,006 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:44,017 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:44,102 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:44,107 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:09:44,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:44,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:44,119 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:44,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 12:09:44,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:44,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:44,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:44,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:44,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:44,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:44,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:44,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:44,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:44,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:44,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:44,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:44,187 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:44,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:44,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 12:09:44,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:44,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:44,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:44,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:44,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:44,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:44,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:44,274 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:44,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:44,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:44,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:44,289 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:44,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:44,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 12:09:44,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:44,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:44,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:44,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:44,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:44,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:44,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:44,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:44,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:44,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:44,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:44,345 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:44,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:44,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 12:09:44,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:44,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:44,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:44,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:44,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:44,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:44,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:44,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:44,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:44,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:44,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:44,402 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:44,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:44,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:44,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:44,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:44,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:44,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:44,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:44,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:44,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 12:09:44,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:44,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:44,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:44,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:44,449 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:44,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 12:09:44,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:44,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:44,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:44,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:44,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:44,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:44,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:44,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:44,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:44,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:44,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:44,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:44,491 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:44,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 12:09:44,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:44,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:44,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:44,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:44,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:44,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:44,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:44,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:44,509 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:09:44,513 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-16 12:09:44,513 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 12:09:44,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:44,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:44,517 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:44,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 12:09:44,519 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:09:44,519 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:09:44,519 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:09:44,520 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2022-11-16 12:09:44,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-11-16 12:09:44,526 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:09:44,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:44,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:09:44,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:44,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:09:44,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:44,747 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-16 12:09:44,750 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) [2022-11-16 12:09:44,889 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. [2022-11-16 12:09:44,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-16 12:09:44,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:44,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-16 12:09:44,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-16 12:09:44,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:44,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2022-11-16 12:09:44,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:44,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2022-11-16 12:09:44,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:44,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 66 transitions. [2022-11-16 12:09:44,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 12:09:44,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 32 states and 45 transitions. [2022-11-16 12:09:44,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-11-16 12:09:44,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2022-11-16 12:09:44,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2022-11-16 12:09:44,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:09:44,921 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 45 transitions. [2022-11-16 12:09:44,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2022-11-16 12:09:44,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2022-11-16 12:09:44,949 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) [2022-11-16 12:09:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2022-11-16 12:09:44,951 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 37 transitions. [2022-11-16 12:09:44,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:44,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:44,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:44,955 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) [2022-11-16 12:09:45,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:45,038 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-11-16 12:09:45,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2022-11-16 12:09:45,040 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 12:09:45,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 34 transitions. [2022-11-16 12:09:45,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2022-11-16 12:09:45,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2022-11-16 12:09:45,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2022-11-16 12:09:45,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:45,043 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-11-16 12:09:45,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2022-11-16 12:09:45,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2022-11-16 12:09:45,046 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) [2022-11-16 12:09:45,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-16 12:09:45,047 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-16 12:09:45,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:09:45,048 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-16 12:09:45,048 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:09:45,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2022-11-16 12:09:45,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-16 12:09:45,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:09:45,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:09:45,050 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:45,050 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 12:09:45,051 INFO L748 eck$LassoCheckResult]: Stem: 195#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); 196#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; 200#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; 201#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 193#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 199#multENTRY ~n := #in~n;~m := #in~m; 192#L18 assume !(~m < 0); 194#L21 assume !(0 == ~m); 203#L24 call #t~ret5 := mult(~n, ~m - 1);< 209#multENTRY [2022-11-16 12:09:45,051 INFO L750 eck$LassoCheckResult]: Loop: 209#multENTRY ~n := #in~n;~m := #in~m; 211#L18 assume ~m < 0; 206#L19 call #t~ret4 := mult(~n, -~m);< 209#multENTRY [2022-11-16 12:09:45,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:45,052 INFO L85 PathProgramCache]: Analyzing trace with hash 332752684, now seen corresponding path program 1 times [2022-11-16 12:09:45,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:45,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9438925] [2022-11-16 12:09:45,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:45,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:45,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:45,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:45,082 INFO L85 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 2 times [2022-11-16 12:09:45,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:45,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469755744] [2022-11-16 12:09:45,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:45,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:45,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:45,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:45,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash 250690010, now seen corresponding path program 1 times [2022-11-16 12:09:45,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:45,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623859579] [2022-11-16 12:09:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:45,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:45,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:45,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:45,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623859579] [2022-11-16 12:09:45,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623859579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:45,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:45,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:09:45,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827208517] [2022-11-16 12:09:45,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:45,255 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:45,256 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:45,256 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:45,256 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:45,256 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:09:45,256 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:45,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:45,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2022-11-16 12:09:45,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:45,257 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:45,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,261 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,264 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,268 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,275 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,278 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,281 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,341 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:45,341 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:09:45,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,343 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:45,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:45,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-16 12:09:45,371 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:45,371 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:45,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,378 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:45,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:45,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-16 12:09:45,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:45,411 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:45,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,421 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:45,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:45,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-16 12:09:45,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:45,460 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:45,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,471 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:45,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:45,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-16 12:09:45,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,525 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:09:45,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:45,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-16 12:09:45,601 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:09:45,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,605 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:45,605 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:45,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:45,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:45,605 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:09:45,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:45,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:45,605 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2022-11-16 12:09:45,605 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:45,606 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:45,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,611 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,623 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,630 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,634 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,641 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:45,704 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:45,704 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:09:45,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,706 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:45,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-16 12:09:45,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:45,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:45,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:45,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:45,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:45,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:45,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:45,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:45,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,752 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:45,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:45,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:45,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:45,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:45,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:45,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:45,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:45,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-16 12:09:45,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:45,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,801 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,807 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 [2022-11-16 12:09:45,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:45,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:45,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:45,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:45,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:45,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:45,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:45,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-16 12:09:45,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:45,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,851 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:45,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:45,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:45,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:45,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:45,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:45,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:45,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:45,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-16 12:09:45,882 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:09:45,885 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-16 12:09:45,885 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 12:09:45,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:45,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:45,889 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:45,891 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:09:45,891 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:09:45,891 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:09:45,891 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2022-11-16 12:09:45,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-16 12:09:45,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,901 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:09:45,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:45,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:09:45,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:45,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:45,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:46,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:09:46,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:46,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:46,060 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-16 12:09:46,061 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) [2022-11-16 12:09:46,171 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. [2022-11-16 12:09:46,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-16 12:09:46,172 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) [2022-11-16 12:09:46,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2022-11-16 12:09:46,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2022-11-16 12:09:46,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:46,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2022-11-16 12:09:46,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:46,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-16 12:09:46,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:46,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 92 transitions. [2022-11-16 12:09:46,185 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-16 12:09:46,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 51 states and 66 transitions. [2022-11-16 12:09:46,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2022-11-16 12:09:46,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-11-16 12:09:46,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 66 transitions. [2022-11-16 12:09:46,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:09:46,188 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 66 transitions. [2022-11-16 12:09:46,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 66 transitions. [2022-11-16 12:09:46,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2022-11-16 12:09:46,192 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) [2022-11-16 12:09:46,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2022-11-16 12:09:46,193 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 55 transitions. [2022-11-16 12:09:46,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:46,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:46,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:46,194 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) [2022-11-16 12:09:46,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:46,264 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-11-16 12:09:46,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 60 transitions. [2022-11-16 12:09:46,271 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2022-11-16 12:09:46,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 48 transitions. [2022-11-16 12:09:46,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-16 12:09:46,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-16 12:09:46,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 48 transitions. [2022-11-16 12:09:46,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:46,278 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-11-16 12:09:46,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 48 transitions. [2022-11-16 12:09:46,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-16 12:09:46,292 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) [2022-11-16 12:09:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-11-16 12:09:46,296 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-11-16 12:09:46,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:09:46,297 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-11-16 12:09:46,298 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 12:09:46,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 48 transitions. [2022-11-16 12:09:46,302 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2022-11-16 12:09:46,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:09:46,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:09:46,307 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:46,307 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 12:09:46,308 INFO L748 eck$LassoCheckResult]: Stem: 466#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); 467#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; 477#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; 478#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 469#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 479#multENTRY ~n := #in~n;~m := #in~m; 494#L18 assume !(~m < 0); 492#L21 assume 0 == ~m;#res := 0; 491#multFINAL assume true; 468#multEXIT >#46#return; 470#L36-1 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 473#L37 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 471#multENTRY [2022-11-16 12:09:46,308 INFO L750 eck$LassoCheckResult]: Loop: 471#multENTRY ~n := #in~n;~m := #in~m; 474#L18 assume ~m < 0; 472#L19 call #t~ret4 := mult(~n, -~m);< 471#multENTRY [2022-11-16 12:09:46,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:46,308 INFO L85 PathProgramCache]: Analyzing trace with hash 248917746, now seen corresponding path program 1 times [2022-11-16 12:09:46,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:46,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349649210] [2022-11-16 12:09:46,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:46,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:46,327 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:46,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:46,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:46,342 INFO L85 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 3 times [2022-11-16 12:09:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:46,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259911206] [2022-11-16 12:09:46,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:46,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:46,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:46,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:46,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:46,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1899948972, now seen corresponding path program 1 times [2022-11-16 12:09:46,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:46,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911232260] [2022-11-16 12:09:46,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:46,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-16 12:09:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:46,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:46,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911232260] [2022-11-16 12:09:46,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911232260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:46,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:46,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:09:46,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238062934] [2022-11-16 12:09:46,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:46,494 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:46,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:46,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:46,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:46,495 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:09:46,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:46,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:46,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2022-11-16 12:09:46,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:46,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:46,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,501 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,505 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,515 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,518 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,525 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,566 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:46,566 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:09:46,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:46,571 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:46,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:46,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:46,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-16 12:09:46,607 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:46,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:46,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:46,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:46,617 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:46,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:46,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:46,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-16 12:09:46,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:46,649 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:46,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:46,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:46,654 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:46,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:46,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:46,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-16 12:09:46,687 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:46,687 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:46,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:46,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:46,697 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:46,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:46,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:46,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-16 12:09:46,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-16 12:09:46,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:46,726 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:46,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:09:46,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:46,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-16 12:09:46,815 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:09:46,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:46,823 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:46,824 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:46,824 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:46,824 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:46,824 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:09:46,824 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,824 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:46,824 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:46,824 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2022-11-16 12:09:46,824 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:46,824 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:46,825 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,828 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,831 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,834 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,836 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,844 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:46,886 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:46,887 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:09:46,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:46,889 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:46,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:46,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:46,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:46,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:46,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:46,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:46,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:46,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:46,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-16 12:09:46,950 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:46,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:46,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:46,958 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:46,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-16 12:09:46,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:46,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:46,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:46,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:46,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:46,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:46,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:46,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:46,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:46,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-11-16 12:09:46,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:46,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:46,977 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:46,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-16 12:09:46,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:46,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:46,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:46,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:46,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:46,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:46,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:46,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:47,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:47,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,024 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:47,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:47,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:47,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:47,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:47,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:47,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:47,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:47,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-16 12:09:47,058 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:47,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,068 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:47,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-16 12:09:47,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:47,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:47,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:47,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:47,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:47,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:47,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:47,098 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:09:47,101 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-16 12:09:47,101 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 12:09:47,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,103 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,111 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:09:47,111 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:09:47,111 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:09:47,111 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2022-11-16 12:09:47,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-16 12:09:47,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,121 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:09:47,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:47,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:09:47,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:47,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:09:47,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:47,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:47,273 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-16 12:09:47,273 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) [2022-11-16 12:09:47,350 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. [2022-11-16 12:09:47,351 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 [2022-11-16 12:09:47,351 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) [2022-11-16 12:09:47,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-11-16 12:09:47,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2022-11-16 12:09:47,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:47,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2022-11-16 12:09:47,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:47,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2022-11-16 12:09:47,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:47,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 91 transitions. [2022-11-16 12:09:47,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-16 12:09:47,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 63 states and 71 transitions. [2022-11-16 12:09:47,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2022-11-16 12:09:47,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2022-11-16 12:09:47,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 71 transitions. [2022-11-16 12:09:47,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:09:47,357 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 71 transitions. [2022-11-16 12:09:47,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 71 transitions. [2022-11-16 12:09:47,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2022-11-16 12:09:47,361 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) [2022-11-16 12:09:47,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2022-11-16 12:09:47,362 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 42 transitions. [2022-11-16 12:09:47,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:47,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:47,363 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) [2022-11-16 12:09:47,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:47,395 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-11-16 12:09:47,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 41 transitions. [2022-11-16 12:09:47,396 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-16 12:09:47,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 40 transitions. [2022-11-16 12:09:47,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2022-11-16 12:09:47,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2022-11-16 12:09:47,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 40 transitions. [2022-11-16 12:09:47,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:47,398 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 40 transitions. [2022-11-16 12:09:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 40 transitions. [2022-11-16 12:09:47,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2022-11-16 12:09:47,420 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) [2022-11-16 12:09:47,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-11-16 12:09:47,421 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-11-16 12:09:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:09:47,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,432 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-11-16 12:09:47,432 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 12:09:47,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 36 transitions. [2022-11-16 12:09:47,433 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-16 12:09:47,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:09:47,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:09:47,434 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:47,434 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 12:09:47,435 INFO L748 eck$LassoCheckResult]: Stem: 755#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); 756#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; 761#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; 762#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 764#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 765#multENTRY ~n := #in~n;~m := #in~m; 773#L18 assume !(~m < 0); 772#L21 assume 0 == ~m;#res := 0; 771#multFINAL assume true; 770#multEXIT >#46#return; 766#L36-1 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 754#L37 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 760#multENTRY [2022-11-16 12:09:47,435 INFO L750 eck$LassoCheckResult]: Loop: 760#multENTRY ~n := #in~n;~m := #in~m; 751#L18 assume !(~m < 0); 753#L21 assume !(0 == ~m); 752#L24 call #t~ret5 := mult(~n, ~m - 1);< 760#multENTRY [2022-11-16 12:09:47,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:47,436 INFO L85 PathProgramCache]: Analyzing trace with hash 248917746, now seen corresponding path program 2 times [2022-11-16 12:09:47,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:47,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325881132] [2022-11-16 12:09:47,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:47,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:47,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:47,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:47,454 INFO L85 PathProgramCache]: Analyzing trace with hash 929640, now seen corresponding path program 1 times [2022-11-16 12:09:47,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:47,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694509239] [2022-11-16 12:09:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:47,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:47,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:47,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:47,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:47,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1231125977, now seen corresponding path program 1 times [2022-11-16 12:09:47,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:47,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443333548] [2022-11-16 12:09:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:47,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:47,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:47,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:47,553 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:47,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:47,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:47,554 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:47,554 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:09:47,554 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,554 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:47,554 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:47,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2022-11-16 12:09:47,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:47,555 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:47,556 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,560 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,569 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,572 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,576 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,579 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,581 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,629 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:47,630 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:09:47,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,637 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:47,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:47,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-16 12:09:47,671 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:47,671 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:47,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,681 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:47,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:47,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-16 12:09:47,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,733 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:09:47,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:47,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-16 12:09:47,772 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:09:47,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,781 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:47,781 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:47,781 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:47,782 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:47,782 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:09:47,782 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,782 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:47,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:47,782 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2022-11-16 12:09:47,782 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:47,783 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:47,784 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,788 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,791 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,794 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,803 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,806 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:47,867 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:47,867 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:09:47,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,869 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:47,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-16 12:09:47,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:47,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:47,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:47,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:47,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:47,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:47,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:47,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:47,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,907 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-16 12:09:47,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:47,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:47,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:47,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:47,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:47,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:47,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:47,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:47,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:47,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,943 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:47,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:47,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:47,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:47,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:47,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:47,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:47,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:47,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-16 12:09:47,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:47,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:47,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:47,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:47,976 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:47,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:47,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:47,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:47,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:47,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:47,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:47,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:47,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:47,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-16 12:09:48,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:09:48,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 12:09:48,010 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 12:09:48,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:48,012 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:48,015 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:09:48,015 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:09:48,016 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:09:48,016 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2022-11-16 12:09:48,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-16 12:09:48,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:48,020 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:09:48,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:48,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:09:48,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:48,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:09:48,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:48,183 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-11-16 12:09:48,183 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) [2022-11-16 12:09:48,281 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. [2022-11-16 12:09:48,282 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 [2022-11-16 12:09:48,282 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) [2022-11-16 12:09:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2022-11-16 12:09:48,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-16 12:09:48,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:48,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-16 12:09:48,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:48,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-16 12:09:48,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:48,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 46 transitions. [2022-11-16 12:09:48,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:09:48,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 16 states and 16 transitions. [2022-11-16 12:09:48,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-16 12:09:48,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-16 12:09:48,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 16 transitions. [2022-11-16 12:09:48,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:48,287 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-16 12:09:48,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 16 transitions. [2022-11-16 12:09:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 9. [2022-11-16 12:09:48,288 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) [2022-11-16 12:09:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 12:09:48,288 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 12:09:48,288 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 12:09:48,288 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 12:09:48,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2022-11-16 12:09:48,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:09:48,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:09:48,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:09:48,289 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-16 12:09:48,290 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 12:09:48,290 INFO L748 eck$LassoCheckResult]: Stem: 919#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); 920#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; 922#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; 923#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 918#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 921#multENTRY [2022-11-16 12:09:48,290 INFO L750 eck$LassoCheckResult]: Loop: 921#multENTRY ~n := #in~n;~m := #in~m; 915#L18 assume !(~m < 0); 917#L21 assume !(0 == ~m); 916#L24 call #t~ret5 := mult(~n, ~m - 1);< 921#multENTRY [2022-11-16 12:09:48,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:48,291 INFO L85 PathProgramCache]: Analyzing trace with hash 42056133, now seen corresponding path program 2 times [2022-11-16 12:09:48,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:48,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870298878] [2022-11-16 12:09:48,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:48,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:48,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:48,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:48,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash 929640, now seen corresponding path program 2 times [2022-11-16 12:09:48,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:48,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710769432] [2022-11-16 12:09:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:48,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:48,305 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:48,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:48,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:48,309 INFO L85 PathProgramCache]: Analyzing trace with hash 332752684, now seen corresponding path program 2 times [2022-11-16 12:09:48,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:48,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377016213] [2022-11-16 12:09:48,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:48,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:48,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:48,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:48,373 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:48,374 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:48,374 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:48,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:48,374 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:09:48,374 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,374 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:48,375 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:48,375 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2022-11-16 12:09:48,375 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:48,375 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:48,376 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,379 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,382 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,389 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,392 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,395 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:48,455 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:09:48,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:48,457 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:48,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-16 12:09:48,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:48,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:48,485 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:48,485 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:48,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:48,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:48,490 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:48,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:48,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:48,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-16 12:09:48,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:09:48,523 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:09:48,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:48,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:48,530 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:48,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:09:48,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:48,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-16 12:09:48,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:48,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:48,575 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:48,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:09:48,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:09:48,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-16 12:09:48,621 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:09:48,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:48,626 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:09:48,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:09:48,626 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:09:48,626 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:09:48,626 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:09:48,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:09:48,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:09:48,626 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2022-11-16 12:09:48,626 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:09:48,627 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:09:48,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,631 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,634 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,642 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,645 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,648 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,651 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:09:48,704 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:09:48,704 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:09:48,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:48,706 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:48,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:48,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:48,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:48,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:48,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:48,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:48,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:48,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:48,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-16 12:09:48,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:48,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:48,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:48,744 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:48,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:48,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:48,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:48,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:48,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:48,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:48,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:48,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:48,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-16 12:09:48,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:09:48,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:48,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:48,788 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:48,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:09:48,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:09:48,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:09:48,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:09:48,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:09:48,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:09:48,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:09:48,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:09:48,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-16 12:09:48,822 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:09:48,825 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 12:09:48,825 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 12:09:48,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:09:48,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:48,827 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:48,830 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:09:48,831 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:09:48,831 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:09:48,831 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2022-11-16 12:09:48,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-16 12:09:48,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:48,835 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:09:48,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:48,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:09:48,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:48,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:09:48,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:48,929 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-16 12:09:48,929 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) [2022-11-16 12:09:48,988 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. [2022-11-16 12:09:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-16 12:09:48,989 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) [2022-11-16 12:09:48,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2022-11-16 12:09:48,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-16 12:09:48,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:48,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-16 12:09:48,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:48,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2022-11-16 12:09:48,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:09:48,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 19 transitions. [2022-11-16 12:09:48,991 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:09:48,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2022-11-16 12:09:48,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 12:09:48,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 12:09:48,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 12:09:48,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:48,992 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:09:48,992 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:09:48,992 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:09:48,993 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-16 12:09:48,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:09:48,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:09:48,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 12:09:49,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:09:49 BoogieIcfgContainer [2022-11-16 12:09:49,003 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:09:49,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:09:49,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:09:49,004 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:09:49,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:42" (3/4) ... [2022-11-16 12:09:49,007 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:09:49,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:09:49,008 INFO L158 Benchmark]: Toolchain (without parser) took 7113.63ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 106.1MB in the beginning and 62.9MB in the end (delta: 43.2MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2022-11-16 12:09:49,009 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:09:49,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.31ms. Allocated memory is still 136.3MB. Free memory was 106.1MB in the beginning and 113.6MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:09:49,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.82ms. Allocated memory is still 136.3MB. Free memory was 113.6MB in the beginning and 112.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:09:49,010 INFO L158 Benchmark]: Boogie Preprocessor took 43.32ms. Allocated memory is still 136.3MB. Free memory was 112.0MB in the beginning and 111.4MB in the end (delta: 550.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:09:49,010 INFO L158 Benchmark]: RCFGBuilder took 433.57ms. Allocated memory is still 136.3MB. Free memory was 111.0MB in the beginning and 101.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:09:49,011 INFO L158 Benchmark]: BuchiAutomizer took 6255.18ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 100.5MB in the beginning and 62.9MB in the end (delta: 37.6MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2022-11-16 12:09:49,011 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 176.2MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:09:49,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.31ms. Allocated memory is still 136.3MB. Free memory was 106.1MB in the beginning and 113.6MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.82ms. Allocated memory is still 136.3MB. Free memory was 113.6MB in the beginning and 112.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.32ms. Allocated memory is still 136.3MB. Free memory was 112.0MB in the beginning and 111.4MB in the end (delta: 550.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 433.57ms. Allocated memory is still 136.3MB. Free memory was 111.0MB in the beginning and 101.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 6255.18ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 100.5MB in the beginning and 62.9MB in the end (delta: 37.6MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 176.2MB. Free memory is still 62.9MB. 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 6.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.3s. Construction of modules took 0.2s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 148 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 208 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 121 mSDtfsCounter, 199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf94 smp86 dnf100 smp100 tf112 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 67ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 12:09:49,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:49,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:49,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734042df-2f19-471f-a083-82a8a6230ea7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE