./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 2329fc70 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_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/MultCommutative-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 21:40:18,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:40:18,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:40:18,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:40:18,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:40:18,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:40:18,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:40:18,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:40:18,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:40:18,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:40:18,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:40:18,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:40:18,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:40:18,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:40:18,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:40:18,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:40:18,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:40:18,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:40:18,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:40:18,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:40:18,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:40:18,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:40:18,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:40:18,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:40:18,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:40:18,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:40:18,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:40:18,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:40:18,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:40:18,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:40:18,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:40:18,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:40:18,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:40:18,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:40:18,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:40:18,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:40:18,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:40:18,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:40:18,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:40:18,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:40:18,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:40:18,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 21:40:18,166 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:40:18,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:40:18,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:40:18,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:40:18,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:40:18,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:40:18,169 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:40:18,169 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 21:40:18,169 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 21:40:18,169 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 21:40:18,169 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 21:40:18,170 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 21:40:18,170 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 21:40:18,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:40:18,170 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:40:18,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:40:18,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:40:18,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:40:18,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:40:18,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 21:40:18,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 21:40:18,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 21:40:18,172 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:40:18,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:40:18,172 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 21:40:18,172 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:40:18,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 21:40:18,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:40:18,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:40:18,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:40:18,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:40:18,174 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 21:40:18,174 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_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce29b37e076ab683230ebf17073db3b7759ea39570dd2ef64322b6d43bb636cd [2022-12-13 21:40:18,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:40:18,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:40:18,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:40:18,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:40:18,413 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:40:18,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/recursive/MultCommutative-2.c [2022-12-13 21:40:21,086 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:40:21,238 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:40:21,239 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/sv-benchmarks/c/recursive/MultCommutative-2.c [2022-12-13 21:40:21,244 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/data/83554dec7/46e6681a8c4240afbd6e46ec32cfe544/FLAGd1921e966 [2022-12-13 21:40:21,254 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/data/83554dec7/46e6681a8c4240afbd6e46ec32cfe544 [2022-12-13 21:40:21,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:40:21,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:40:21,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:40:21,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:40:21,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:40:21,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12270ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21, skipping insertion in model container [2022-12-13 21:40:21,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:40:21,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:40:21,384 WARN L237 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_07ec776b-8e14-40b1-b835-6fba0116831e/sv-benchmarks/c/recursive/MultCommutative-2.c[970,983] [2022-12-13 21:40:21,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:40:21,393 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:40:21,404 WARN L237 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_07ec776b-8e14-40b1-b835-6fba0116831e/sv-benchmarks/c/recursive/MultCommutative-2.c[970,983] [2022-12-13 21:40:21,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:40:21,414 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:40:21,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21 WrapperNode [2022-12-13 21:40:21,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:40:21,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:40:21,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:40:21,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:40:21,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,438 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-12-13 21:40:21,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:40:21,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:40:21,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:40:21,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:40:21,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:40:21,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:40:21,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:40:21,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:40:21,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (1/1) ... [2022-12-13 21:40:21,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:21,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:21,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:21,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 21:40:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:40:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2022-12-13 21:40:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2022-12-13 21:40:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:40:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:40:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:40:21,557 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:40:21,559 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:40:21,652 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:40:21,657 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:40:21,657 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:40:21,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:40:21 BoogieIcfgContainer [2022-12-13 21:40:21,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:40:21,665 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 21:40:21,665 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 21:40:21,669 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 21:40:21,669 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:40:21,670 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 09:40:21" (1/3) ... [2022-12-13 21:40:21,671 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5249458a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:40:21, skipping insertion in model container [2022-12-13 21:40:21,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:40:21,671 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:21" (2/3) ... [2022-12-13 21:40:21,671 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5249458a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:40:21, skipping insertion in model container [2022-12-13 21:40:21,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:40:21,672 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:40:21" (3/3) ... [2022-12-13 21:40:21,673 INFO L332 chiAutomizerObserver]: Analyzing ICFG MultCommutative-2.c [2022-12-13 21:40:21,718 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 21:40:21,719 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 21:40:21,719 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 21:40:21,719 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 21:40:21,719 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 21:40:21,719 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 21:40:21,719 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 21:40:21,719 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 21:40:21,723 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) [2022-12-13 21:40:21,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 21:40:21,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:40:21,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:40:21,750 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 21:40:21,750 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:40:21,750 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 21:40:21,751 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) [2022-12-13 21:40:21,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 21:40:21,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:40:21,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:40:21,754 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 21:40:21,754 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:40:21,764 INFO L748 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 7#L29true assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 10#L33true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 13#L36true call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 5#$Ultimate##0true [2022-12-13 21:40:21,765 INFO L750 eck$LassoCheckResult]: Loop: 5#$Ultimate##0true ~n := #in~n;~m := #in~m; 3#L18true assume ~m < 0; 19#L19true call #t~ret4 := mult(~n, -~m);< 5#$Ultimate##0true [2022-12-13 21:40:21,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:21,771 INFO L85 PathProgramCache]: Analyzing trace with hash 42056133, now seen corresponding path program 1 times [2022-12-13 21:40:21,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:21,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168754311] [2022-12-13 21:40:21,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:21,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:21,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:21,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:21,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:21,888 INFO L85 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 1 times [2022-12-13 21:40:21,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:21,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110379716] [2022-12-13 21:40:21,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:21,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:21,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:21,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:21,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:21,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1236192095, now seen corresponding path program 1 times [2022-12-13 21:40:21,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:21,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82100529] [2022-12-13 21:40:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:21,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:22,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:40:22,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:40:22,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82100529] [2022-12-13 21:40:22,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82100529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:40:22,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:40:22,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:40:22,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306608901] [2022-12-13 21:40:22,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:40:22,077 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:22,078 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:22,078 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:22,078 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:22,078 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:40:22,078 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,079 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:22,079 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:22,079 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2022-12-13 21:40:22,079 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:22,079 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:22,091 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,098 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,100 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,103 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,105 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,112 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,154 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:22,154 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:40:22,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 21:40:22,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:22,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:22,177 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:22,177 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:22,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:22,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 21:40:22,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:22,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:22,197 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:22,197 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:22,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 21:40:22,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 21:40:22,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:22,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:22,217 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:22,218 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:22,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 21:40:22,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,223 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 21:40:22,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:22,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:22,237 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:22,238 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:22,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 21:40:22,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 21:40:22,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:22,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:22,259 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:22,259 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:22,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 21:40:22,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,263 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 21:40:22,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:22,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:22,278 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:22,278 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:22,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 21:40:22,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,283 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 21:40:22,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:22,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:22,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:22,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,300 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 21:40:22,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:40:22,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:22,330 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:40:22,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:22,333 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:22,334 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:22,334 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:22,334 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:22,334 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:40:22,334 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,334 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:22,334 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:22,334 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2022-12-13 21:40:22,334 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:22,335 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:22,336 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,338 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,341 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,343 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,345 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,347 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,351 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,386 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:22,390 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:40:22,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,392 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 21:40:22,394 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 [2022-12-13 21:40:22,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:22,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:22,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:22,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:22,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:22,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:22,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:22,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:22,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 21:40:22,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,414 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 21:40:22,417 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 [2022-12-13 21:40:22,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:22,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:22,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:22,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:22,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:22,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:22,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:22,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:22,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 21:40:22,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,435 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 21:40:22,437 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 [2022-12-13 21:40:22,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:22,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:22,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:22,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:22,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:22,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:22,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:22,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:22,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 21:40:22,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,455 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 21:40:22,457 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 [2022-12-13 21:40:22,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:22,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:22,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:22,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:22,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:22,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:22,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:22,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:22,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 21:40:22,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,474 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 21:40:22,477 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 [2022-12-13 21:40:22,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:22,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:22,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:22,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:22,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:22,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:22,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:22,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:22,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 21:40:22,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,494 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 21:40:22,496 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 [2022-12-13 21:40:22,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:22,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:22,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:22,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:22,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:22,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:22,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:22,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:22,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 21:40:22,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,513 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 21:40:22,515 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 [2022-12-13 21:40:22,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:22,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:22,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:22,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:22,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:22,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:22,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:22,530 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:40:22,533 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 21:40:22,533 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:40:22,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:22,559 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:22,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 21:40:22,560 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:40:22,560 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:40:22,561 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:40:22,561 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2022-12-13 21:40:22,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 21:40:22,566 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:40:22,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:22,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:40:22,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:22,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:40:22,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:22,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:40:22,676 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 [2022-12-13 21:40:22,677 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) [2022-12-13 21:40:22,748 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. [2022-12-13 21:40:22,750 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 [2022-12-13 21:40:22,753 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) [2022-12-13 21:40:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-13 21:40:22,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2022-12-13 21:40:22,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:22,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2022-12-13 21:40:22,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:22,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2022-12-13 21:40:22,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:22,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 66 transitions. [2022-12-13 21:40:22,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 21:40:22,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 32 states and 45 transitions. [2022-12-13 21:40:22,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-12-13 21:40:22,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2022-12-13 21:40:22,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2022-12-13 21:40:22,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:40:22,766 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 45 transitions. [2022-12-13 21:40:22,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 21:40:22,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2022-12-13 21:40:22,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2022-12-13 21:40:22,793 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) [2022-12-13 21:40:22,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2022-12-13 21:40:22,795 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 37 transitions. [2022-12-13 21:40:22,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:40:22,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:40:22,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:40:22,798 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) [2022-12-13 21:40:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:40:22,847 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-12-13 21:40:22,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2022-12-13 21:40:22,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 21:40:22,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 34 transitions. [2022-12-13 21:40:22,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2022-12-13 21:40:22,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2022-12-13 21:40:22,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2022-12-13 21:40:22,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:40:22,851 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-12-13 21:40:22,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2022-12-13 21:40:22,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2022-12-13 21:40:22,854 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) [2022-12-13 21:40:22,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-12-13 21:40:22,854 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-12-13 21:40:22,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:40:22,856 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-12-13 21:40:22,856 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 21:40:22,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2022-12-13 21:40:22,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 21:40:22,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:40:22,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:40:22,858 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:40:22,858 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:40:22,858 INFO L748 eck$LassoCheckResult]: Stem: 209#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 207#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 198#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 199#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 193#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 195#$Ultimate##0 ~n := #in~n;~m := #in~m; 192#L18 assume !(~m < 0); 194#L21 assume !(0 == ~m); 201#L24 call #t~ret5 := mult(~n, ~m - 1);< 208#$Ultimate##0 [2022-12-13 21:40:22,858 INFO L750 eck$LassoCheckResult]: Loop: 208#$Ultimate##0 ~n := #in~n;~m := #in~m; 213#L18 assume ~m < 0; 204#L19 call #t~ret4 := mult(~n, -~m);< 208#$Ultimate##0 [2022-12-13 21:40:22,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:22,859 INFO L85 PathProgramCache]: Analyzing trace with hash 332752684, now seen corresponding path program 1 times [2022-12-13 21:40:22,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:22,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110765682] [2022-12-13 21:40:22,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:22,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:22,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:22,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:22,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:22,887 INFO L85 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 2 times [2022-12-13 21:40:22,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:22,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352714546] [2022-12-13 21:40:22,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:22,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:22,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:22,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:22,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:22,896 INFO L85 PathProgramCache]: Analyzing trace with hash 250690010, now seen corresponding path program 1 times [2022-12-13 21:40:22,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:22,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158344617] [2022-12-13 21:40:22,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:22,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:22,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:40:22,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:40:22,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158344617] [2022-12-13 21:40:22,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158344617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:40:22,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:40:22,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:40:22,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088022562] [2022-12-13 21:40:22,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:40:22,986 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:22,986 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:22,986 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:22,986 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:22,986 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:40:22,986 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:22,987 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:22,987 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:22,987 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2022-12-13 21:40:22,987 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:22,987 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:22,988 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,990 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:22,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,000 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,002 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,004 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,031 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:23,031 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:40:23,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,032 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 21:40:23,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:23,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,046 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:23,046 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:23,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-12-13 21:40:23,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,050 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 21:40:23,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:23,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,063 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:23,064 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:23,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 21:40:23,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,067 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 21:40:23,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:23,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,081 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:23,081 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:23,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-12-13 21:40:23,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,084 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 21:40:23,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:23,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 21:40:23,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,101 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 21:40:23,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:40:23,104 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,167 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:40:23,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 21:40:23,169 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:23,169 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:23,170 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:23,170 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:23,170 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:40:23,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:23,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:23,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2022-12-13 21:40:23,170 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:23,170 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:23,171 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,172 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,174 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,176 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,179 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,180 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,182 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,204 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:23,204 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:40:23,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,205 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 21:40:23,207 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 [2022-12-13 21:40:23,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:23,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:23,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:23,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:23,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:23,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:23,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:23,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:23,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 21:40:23,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,224 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 21:40:23,226 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 [2022-12-13 21:40:23,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:23,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:23,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:23,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:23,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:23,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:23,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:23,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:23,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-12-13 21:40:23,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,242 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 21:40:23,244 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 [2022-12-13 21:40:23,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:23,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:23,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:23,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:23,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:23,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:23,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:23,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:23,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 21:40:23,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,262 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 21:40:23,264 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 [2022-12-13 21:40:23,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:23,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:23,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:23,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:23,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:23,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:23,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:23,278 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:40:23,280 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 21:40:23,280 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:40:23,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,281 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 21:40:23,283 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:40:23,283 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:40:23,283 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:40:23,283 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2022-12-13 21:40:23,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:23,286 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:40:23,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:23,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:40:23,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:23,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:40:23,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:40:23,361 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 [2022-12-13 21:40:23,361 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) [2022-12-13 21:40:23,418 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. [2022-12-13 21:40:23,418 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 [2022-12-13 21:40:23,419 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) [2022-12-13 21:40:23,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2022-12-13 21:40:23,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2022-12-13 21:40:23,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:23,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2022-12-13 21:40:23,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:23,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2022-12-13 21:40:23,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:23,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 92 transitions. [2022-12-13 21:40:23,423 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-12-13 21:40:23,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 51 states and 66 transitions. [2022-12-13 21:40:23,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2022-12-13 21:40:23,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-12-13 21:40:23,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 66 transitions. [2022-12-13 21:40:23,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:40:23,425 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 66 transitions. [2022-12-13 21:40:23,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 66 transitions. [2022-12-13 21:40:23,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2022-12-13 21:40:23,429 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) [2022-12-13 21:40:23,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2022-12-13 21:40:23,429 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 55 transitions. [2022-12-13 21:40:23,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:40:23,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:40:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:40:23,430 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) [2022-12-13 21:40:23,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:40:23,468 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-12-13 21:40:23,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 60 transitions. [2022-12-13 21:40:23,470 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2022-12-13 21:40:23,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 48 transitions. [2022-12-13 21:40:23,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-12-13 21:40:23,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-12-13 21:40:23,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 48 transitions. [2022-12-13 21:40:23,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:40:23,471 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-12-13 21:40:23,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 48 transitions. [2022-12-13 21:40:23,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-13 21:40:23,474 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) [2022-12-13 21:40:23,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-12-13 21:40:23,475 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-12-13 21:40:23,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:40:23,475 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-12-13 21:40:23,475 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 21:40:23,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 48 transitions. [2022-12-13 21:40:23,476 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2022-12-13 21:40:23,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:40:23,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:40:23,477 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:40:23,477 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:40:23,477 INFO L748 eck$LassoCheckResult]: Stem: 482#$Ultimate##0 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); 479#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); 468#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 480#$Ultimate##0 ~n := #in~n;~m := #in~m; 493#L18 assume !(~m < 0); 491#L21 assume 0 == ~m;#res := 0; 490#multFINAL assume true; 467#multEXIT >#46#return; 469#L36-1 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 483#L37 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 501#$Ultimate##0 [2022-12-13 21:40:23,477 INFO L750 eck$LassoCheckResult]: Loop: 501#$Ultimate##0 ~n := #in~n;~m := #in~m; 500#L18 assume ~m < 0; 498#L19 call #t~ret4 := mult(~n, -~m);< 501#$Ultimate##0 [2022-12-13 21:40:23,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:23,478 INFO L85 PathProgramCache]: Analyzing trace with hash 248917746, now seen corresponding path program 1 times [2022-12-13 21:40:23,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:23,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399076832] [2022-12-13 21:40:23,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:23,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:23,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:23,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:23,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:23,497 INFO L85 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 3 times [2022-12-13 21:40:23,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:23,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301746965] [2022-12-13 21:40:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:23,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:23,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:23,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:23,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:23,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1899948972, now seen corresponding path program 1 times [2022-12-13 21:40:23,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:23,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244163108] [2022-12-13 21:40:23,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:23,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:40:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:40:23,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:40:23,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244163108] [2022-12-13 21:40:23,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244163108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:40:23,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:40:23,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:40:23,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602039743] [2022-12-13 21:40:23,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:40:23,586 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:23,586 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:23,586 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:23,586 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:23,586 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:40:23,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:23,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:23,587 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2022-12-13 21:40:23,587 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:23,587 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:23,588 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,589 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,591 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,592 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,596 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,599 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,621 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:23,621 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:40:23,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,623 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 21:40:23,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:23,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,638 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:23,638 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:23,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 21:40:23,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,642 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-12-13 21:40:23,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:23,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,655 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:23,655 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:23,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-12-13 21:40:23,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,658 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-12-13 21:40:23,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:23,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,671 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:23,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:23,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:23,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,675 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-12-13 21:40:23,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:23,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:23,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,692 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-12-13 21:40:23,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:40:23,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:23,753 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:40:23,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:23,756 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:23,756 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:23,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:23,756 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:23,756 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:40:23,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:23,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:23,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2022-12-13 21:40:23,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:23,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:23,757 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,759 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,760 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,762 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,763 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,767 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,768 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:23,790 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:23,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:40:23,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,792 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-12-13 21:40:23,794 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 [2022-12-13 21:40:23,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:23,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:23,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:23,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:23,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:23,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:23,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:23,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:23,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:23,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,809 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-12-13 21:40:23,812 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 [2022-12-13 21:40:23,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:23,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:23,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:23,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:23,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:23,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:23,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:23,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:23,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-12-13 21:40:23,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,827 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-12-13 21:40:23,829 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 [2022-12-13 21:40:23,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:23,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:23,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:23,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:23,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:23,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:23,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:23,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:23,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-12-13 21:40:23,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,845 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-12-13 21:40:23,847 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 [2022-12-13 21:40:23,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:23,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:23,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:23,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:23,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:23,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:23,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:23,859 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:23,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-12-13 21:40:23,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,862 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-12-13 21:40:23,864 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 [2022-12-13 21:40:23,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:23,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:23,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:23,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:23,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:23,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:23,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:23,878 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:40:23,880 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 21:40:23,880 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:40:23,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:23,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:23,881 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:23,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-12-13 21:40:23,886 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:40:23,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 21:40:23,886 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:40:23,886 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:40:23,886 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2022-12-13 21:40:23,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-12-13 21:40:23,889 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:40:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:23,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:40:23,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:23,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:40:23,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:23,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:40:23,984 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 [2022-12-13 21:40:23,984 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) [2022-12-13 21:40:24,032 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. [2022-12-13 21:40:24,032 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 [2022-12-13 21:40:24,032 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) [2022-12-13 21:40:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-12-13 21:40:24,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2022-12-13 21:40:24,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:24,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2022-12-13 21:40:24,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:24,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2022-12-13 21:40:24,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:24,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 91 transitions. [2022-12-13 21:40:24,034 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-12-13 21:40:24,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 63 states and 71 transitions. [2022-12-13 21:40:24,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2022-12-13 21:40:24,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2022-12-13 21:40:24,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 71 transitions. [2022-12-13 21:40:24,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:40:24,035 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 71 transitions. [2022-12-13 21:40:24,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 71 transitions. [2022-12-13 21:40:24,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2022-12-13 21:40:24,037 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) [2022-12-13 21:40:24,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2022-12-13 21:40:24,038 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 42 transitions. [2022-12-13 21:40:24,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:40:24,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:40:24,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:40:24,038 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) [2022-12-13 21:40:24,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:40:24,056 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-12-13 21:40:24,056 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 41 transitions. [2022-12-13 21:40:24,057 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-12-13 21:40:24,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 40 transitions. [2022-12-13 21:40:24,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2022-12-13 21:40:24,058 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2022-12-13 21:40:24,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 40 transitions. [2022-12-13 21:40:24,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:40:24,058 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 40 transitions. [2022-12-13 21:40:24,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 40 transitions. [2022-12-13 21:40:24,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2022-12-13 21:40:24,060 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) [2022-12-13 21:40:24,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-12-13 21:40:24,061 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-12-13 21:40:24,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:40:24,062 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-12-13 21:40:24,062 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 21:40:24,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 36 transitions. [2022-12-13 21:40:24,063 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-12-13 21:40:24,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:40:24,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:40:24,063 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:40:24,063 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:40:24,063 INFO L748 eck$LassoCheckResult]: Stem: 767#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 765#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 759#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 760#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 764#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 766#$Ultimate##0 ~n := #in~n;~m := #in~m; 774#L18 assume !(~m < 0); 772#L21 assume 0 == ~m;#res := 0; 771#multFINAL assume true; 770#multEXIT >#46#return; 768#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);< 755#$Ultimate##0 [2022-12-13 21:40:24,063 INFO L750 eck$LassoCheckResult]: Loop: 755#$Ultimate##0 ~n := #in~n;~m := #in~m; 751#L18 assume !(~m < 0); 753#L21 assume !(0 == ~m); 752#L24 call #t~ret5 := mult(~n, ~m - 1);< 755#$Ultimate##0 [2022-12-13 21:40:24,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash 248917746, now seen corresponding path program 2 times [2022-12-13 21:40:24,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:24,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622215352] [2022-12-13 21:40:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:24,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,071 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:24,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:24,078 INFO L85 PathProgramCache]: Analyzing trace with hash 929640, now seen corresponding path program 1 times [2022-12-13 21:40:24,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:24,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029991784] [2022-12-13 21:40:24,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:24,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:24,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:24,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1231125977, now seen corresponding path program 1 times [2022-12-13 21:40:24,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:24,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610118293] [2022-12-13 21:40:24,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:24,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:24,138 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:24,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:24,138 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:24,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:24,138 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:40:24,138 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:24,138 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:24,138 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2022-12-13 21:40:24,138 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:24,138 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:24,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,147 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,148 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,150 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,151 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,153 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,185 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:24,185 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:40:24,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,186 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-12-13 21:40:24,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:24,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:24,200 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:24,200 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:24,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-12-13 21:40:24,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,203 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-12-13 21:40:24,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:24,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:24,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:24,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,220 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-12-13 21:40:24,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:40:24,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:24,242 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:40:24,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-12-13 21:40:24,245 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:24,245 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:24,245 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:24,245 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:24,245 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:40:24,246 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,246 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:24,246 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:24,246 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2022-12-13 21:40:24,246 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:24,246 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:24,247 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,249 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,250 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,252 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,257 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,259 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,288 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:24,288 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:40:24,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,289 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-12-13 21:40:24,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 21:40:24,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:24,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:24,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:24,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:24,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:24,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:24,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:24,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:24,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:24,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,308 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-12-13 21:40:24,310 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 [2022-12-13 21:40:24,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:24,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:24,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:24,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:24,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:24,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:24,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:24,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:24,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-12-13 21:40:24,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,325 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-12-13 21:40:24,328 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 [2022-12-13 21:40:24,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:24,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:24,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:24,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:24,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:24,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:24,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:24,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:24,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-12-13 21:40:24,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,343 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-12-13 21:40:24,345 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 [2022-12-13 21:40:24,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:24,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:24,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:24,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:24,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:24,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:24,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:24,357 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:40:24,360 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:40:24,360 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 21:40:24,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,361 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-12-13 21:40:24,363 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:40:24,363 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:40:24,363 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:40:24,363 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2022-12-13 21:40:24,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-12-13 21:40:24,366 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:40:24,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:24,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:40:24,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:24,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 21:40:24,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:40:24,473 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 [2022-12-13 21:40:24,473 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) [2022-12-13 21:40:24,531 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. [2022-12-13 21:40:24,531 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 [2022-12-13 21:40:24,532 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) [2022-12-13 21:40:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2022-12-13 21:40:24,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 4 letters. [2022-12-13 21:40:24,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:24,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 16 letters. Loop has 4 letters. [2022-12-13 21:40:24,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:24,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 8 letters. [2022-12-13 21:40:24,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:24,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 46 transitions. [2022-12-13 21:40:24,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:40:24,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 16 states and 16 transitions. [2022-12-13 21:40:24,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-12-13 21:40:24,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-12-13 21:40:24,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 16 transitions. [2022-12-13 21:40:24,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:40:24,535 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-12-13 21:40:24,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 16 transitions. [2022-12-13 21:40:24,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 9. [2022-12-13 21:40:24,536 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) [2022-12-13 21:40:24,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 21:40:24,537 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 21:40:24,537 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 21:40:24,537 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 21:40:24,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2022-12-13 21:40:24,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:40:24,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:40:24,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:40:24,537 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 21:40:24,537 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:40:24,538 INFO L748 eck$LassoCheckResult]: Stem: 920#$Ultimate##0 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); 921#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);< 919#$Ultimate##0 [2022-12-13 21:40:24,538 INFO L750 eck$LassoCheckResult]: Loop: 919#$Ultimate##0 ~n := #in~n;~m := #in~m; 915#L18 assume !(~m < 0); 917#L21 assume !(0 == ~m); 916#L24 call #t~ret5 := mult(~n, ~m - 1);< 919#$Ultimate##0 [2022-12-13 21:40:24,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:24,538 INFO L85 PathProgramCache]: Analyzing trace with hash 42056133, now seen corresponding path program 2 times [2022-12-13 21:40:24,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:24,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384160477] [2022-12-13 21:40:24,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:24,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:24,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:24,547 INFO L85 PathProgramCache]: Analyzing trace with hash 929640, now seen corresponding path program 2 times [2022-12-13 21:40:24,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:24,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855043729] [2022-12-13 21:40:24,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:24,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:24,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:24,553 INFO L85 PathProgramCache]: Analyzing trace with hash 332752684, now seen corresponding path program 2 times [2022-12-13 21:40:24,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:40:24,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74431830] [2022-12-13 21:40:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:40:24,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:40:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:40:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:40:24,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:40:24,601 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:24,601 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:24,601 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:24,601 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:24,601 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:40:24,601 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,601 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:24,601 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:24,601 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2022-12-13 21:40:24,602 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:24,602 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:24,602 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,604 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,606 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,610 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,611 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,612 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,614 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:24,641 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:40:24,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,642 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-12-13 21:40:24,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:24,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:24,655 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:24,655 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:24,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:24,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,658 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-12-13 21:40:24,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:24,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:24,672 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:40:24,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:40:24,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:24,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,675 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-12-13 21:40:24,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:40:24,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:24,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-12-13 21:40:24,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,691 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-12-13 21:40:24,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:40:24,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:40:24,714 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:40:24,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2022-12-13 21:40:24,717 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:40:24,718 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:40:24,718 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:40:24,718 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:40:24,718 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:40:24,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:40:24,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:40:24,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2022-12-13 21:40:24,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:40:24,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:40:24,719 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,720 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,722 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,725 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,726 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,727 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,728 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:40:24,753 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:40:24,753 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:40:24,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,754 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-12-13 21:40:24,756 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 [2022-12-13 21:40:24,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:24,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:24,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:24,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:24,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:24,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:24,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:24,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:24,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-12-13 21:40:24,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,772 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-12-13 21:40:24,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-12-13 21:40:24,778 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 [2022-12-13 21:40:24,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-12-13 21:40:24,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:24,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:24,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:24,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:24,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:24,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:24,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:24,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:40:24,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-12-13 21:40:24,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,794 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-12-13 21:40:24,796 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 [2022-12-13 21:40:24,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:40:24,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:40:24,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:40:24,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:40:24,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:40:24,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:40:24,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:40:24,809 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:40:24,811 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:40:24,811 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 21:40:24,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:40:24,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:40:24,812 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:40:24,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-12-13 21:40:24,814 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:40:24,814 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:40:24,814 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:40:24,814 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2022-12-13 21:40:24,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2022-12-13 21:40:24,817 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:40:24,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:40:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:24,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:40:24,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:40:24,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 21:40:24,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:40:24,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:40:24,872 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 [2022-12-13 21:40:24,872 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) [2022-12-13 21:40:24,909 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. [2022-12-13 21:40:24,909 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 [2022-12-13 21:40:24,909 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) [2022-12-13 21:40:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2022-12-13 21:40:24,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2022-12-13 21:40:24,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:24,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2022-12-13 21:40:24,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:24,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2022-12-13 21:40:24,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:40:24,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 19 transitions. [2022-12-13 21:40:24,910 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 21:40:24,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2022-12-13 21:40:24,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 21:40:24,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 21:40:24,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 21:40:24,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:40:24,911 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:40:24,911 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:40:24,911 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:40:24,911 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 21:40:24,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 21:40:24,911 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 21:40:24,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 21:40:24,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 09:40:24 BoogieIcfgContainer [2022-12-13 21:40:24,916 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 21:40:24,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:40:24,916 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:40:24,916 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:40:24,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:40:21" (3/4) ... [2022-12-13 21:40:24,918 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:40:24,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:40:24,918 INFO L158 Benchmark]: Toolchain (without parser) took 3661.77ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 75.9MB in the beginning and 122.8MB in the end (delta: -46.9MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-12-13 21:40:24,919 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 82.4MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:40:24,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.50ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 65.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 21:40:24,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.35ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 64.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:40:24,919 INFO L158 Benchmark]: Boogie Preprocessor took 13.06ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 63.3MB in the end (delta: 897.5kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:40:24,919 INFO L158 Benchmark]: RCFGBuilder took 206.72ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 63.0MB in the beginning and 141.4MB in the end (delta: -78.4MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-12-13 21:40:24,919 INFO L158 Benchmark]: BuchiAutomizer took 3250.98ms. Allocated memory is still 172.0MB. Free memory was 142.3MB in the beginning and 122.8MB in the end (delta: 19.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-12-13 21:40:24,920 INFO L158 Benchmark]: Witness Printer took 2.26ms. Allocated memory is still 172.0MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:40:24,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 82.4MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.50ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 65.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.35ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 64.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.06ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 63.3MB in the end (delta: 897.5kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 206.72ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 63.0MB in the beginning and 141.4MB in the end (delta: -78.4MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3250.98ms. Allocated memory is still 172.0MB. Free memory was 142.3MB in the beginning and 122.8MB in the end (delta: 19.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Witness Printer took 2.26ms. Allocated memory is still 172.0MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * \old(m) and consists of 4 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 6 locations. One deterministic module has affine ranking function \old(m) and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -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, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 208 SdHoareTripleChecker+Invalid, 0.1s 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: 19ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 21:40:24,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2022-12-13 21:40:25,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ec776b-8e14-40b1-b835-6fba0116831e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE