./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 30d2fee99df05baf23c51b2012b75d1af7c997c2ecdfb3b70ac3637daf8339a3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:32:02,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:32:02,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:32:02,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:32:02,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:32:02,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:32:02,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:32:02,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:32:02,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:32:02,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:32:02,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:32:02,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:32:02,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:32:02,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:32:02,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:32:02,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:32:02,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:32:02,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:32:02,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:32:02,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:32:02,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:32:02,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:32:02,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:32:02,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:32:02,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:32:02,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:32:02,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:32:02,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:32:02,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:32:02,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:32:02,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:32:02,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:32:02,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:32:02,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:32:02,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:32:02,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:32:02,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:32:02,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:32:02,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:32:02,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:32:02,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:32:02,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:32:02,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:32:02,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:32:02,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:32:02,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:32:02,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:32:02,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:32:02,268 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:32:02,268 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:32:02,268 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:32:02,268 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:32:02,270 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:32:02,270 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:32:02,270 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:32:02,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:32:02,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:32:02,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:32:02,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:32:02,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:32:02,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:32:02,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:32:02,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:32:02,272 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:32:02,273 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:32:02,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:32:02,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:32:02,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:32:02,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:32:02,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:32:02,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:32:02,278 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:32:02,278 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_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30d2fee99df05baf23c51b2012b75d1af7c997c2ecdfb3b70ac3637daf8339a3 [2021-10-28 23:32:02,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:32:02,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:32:02,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:32:02,641 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:32:02,642 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:32:02,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2021-10-28 23:32:02,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/data/dcf41c4b2/26ac2f19d7724957985714252ab591e2/FLAG8b53c5cfb [2021-10-28 23:32:03,442 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:32:03,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2021-10-28 23:32:03,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/data/dcf41c4b2/26ac2f19d7724957985714252ab591e2/FLAG8b53c5cfb [2021-10-28 23:32:03,800 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/data/dcf41c4b2/26ac2f19d7724957985714252ab591e2 [2021-10-28 23:32:03,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:32:03,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:32:03,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:32:03,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:32:03,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:32:03,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:32:03" (1/1) ... [2021-10-28 23:32:03,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16c060e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:03, skipping insertion in model container [2021-10-28 23:32:03,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:32:03" (1/1) ... [2021-10-28 23:32:03,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:32:03,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:32:04,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:32:04,091 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:32:04,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:32:04,152 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:32:04,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04 WrapperNode [2021-10-28 23:32:04,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:32:04,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:32:04,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:32:04,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:32:04,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:32:04,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:32:04,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:32:04,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:32:04,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:32:04,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:32:04,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:32:04,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:32:04,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (1/1) ... [2021-10-28 23:32:04,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:04,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:04,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:04,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:32:04,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:32:04,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:32:04,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:32:04,545 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:32:04,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:32:04 BoogieIcfgContainer [2021-10-28 23:32:04,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:32:04,549 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:32:04,549 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:32:04,553 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:32:04,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:32:04,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:32:03" (1/3) ... [2021-10-28 23:32:04,556 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@659adfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:32:04, skipping insertion in model container [2021-10-28 23:32:04,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:32:04,556 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:04" (2/3) ... [2021-10-28 23:32:04,557 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@659adfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:32:04, skipping insertion in model container [2021-10-28 23:32:04,557 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:32:04,557 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:32:04" (3/3) ... [2021-10-28 23:32:04,559 INFO L389 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b.c [2021-10-28 23:32:04,613 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:32:04,613 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:32:04,613 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:32:04,613 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:32:04,613 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:32:04,614 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:32:04,614 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:32:04,614 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:32:04,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:04,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:32:04,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:32:04,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:32:04,660 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:32:04,661 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:32:04,661 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:32:04,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:04,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:32:04,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:32:04,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:32:04,663 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:32:04,664 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:32:04,672 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L23-2true [2021-10-28 23:32:04,672 INFO L793 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 7#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 5#L23-2true [2021-10-28 23:32:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:04,680 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 23:32:04,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:04,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812046025] [2021-10-28 23:32:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:04,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:04,803 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:04,847 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:04,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:04,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-28 23:32:04,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:04,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953497378] [2021-10-28 23:32:04,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:04,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:04,886 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:04,907 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:04,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:04,910 INFO L85 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-28 23:32:04,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:04,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789894974] [2021-10-28 23:32:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:04,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:04,935 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:04,953 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:05,094 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:05,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:05,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:05,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:05,096 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:32:05,096 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:05,096 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:05,096 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:05,097 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration1_Loop [2021-10-28 23:32:05,097 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:05,097 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:05,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,322 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:05,323 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:32:05,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:05,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:05,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:05,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:05,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:05,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:32:05,389 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:05,389 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:05,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:05,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:05,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:05,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:05,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:05,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:05,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:32:05,471 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:05,471 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:05,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:05,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:05,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:05,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:05,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:05,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:05,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:32:05,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:05,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:05,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:05,611 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:05,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:32:05,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:05,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:32:05,699 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:32:05,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:05,709 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:05,709 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:05,709 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:05,710 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:05,710 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:32:05,710 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:05,710 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:05,710 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:05,710 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration1_Loop [2021-10-28 23:32:05,711 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:05,711 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:05,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:05,851 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:05,857 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:32:05,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:05,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:05,861 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:05,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:32:05,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:05,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:05,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:05,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:05,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:05,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:32:05,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:32:05,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:05,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:05,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:05,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:05,947 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:05,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:32:05,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:05,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:05,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:05,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:05,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:05,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:32:05,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:32:05,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:06,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-28 23:32:06,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:06,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:06,038 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:06,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:32:06,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:06,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:06,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:06,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:06,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:06,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:06,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:06,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:06,083 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:32:06,087 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:32:06,088 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:32:06,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:06,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:06,092 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:06,095 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:32:06,095 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:32:06,095 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:32:06,096 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 23:32:06,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:32:06,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:06,138 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:32:06,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:06,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:06,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:06,230 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:06,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:06,286 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:32:06,288 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:06,365 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 48 transitions. Complement of second has 8 states. [2021-10-28 23:32:06,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:06,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-10-28 23:32:06,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 23:32:06,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:06,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 23:32:06,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:06,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 23:32:06,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:06,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2021-10-28 23:32:06,427 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:32:06,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 13 states and 19 transitions. [2021-10-28 23:32:06,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 23:32:06,434 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-28 23:32:06,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-28 23:32:06,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:32:06,435 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-28 23:32:06,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-28 23:32:06,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:06,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-28 23:32:06,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:06,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2021-10-28 23:32:06,485 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2021-10-28 23:32:06,485 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2021-10-28 23:32:06,485 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:32:06,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2021-10-28 23:32:06,487 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:32:06,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:32:06,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:32:06,487 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:32:06,488 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:32:06,488 INFO L791 eck$LassoCheckResult]: Stem: 82#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 83#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 85#L21 [2021-10-28 23:32:06,488 INFO L793 eck$LassoCheckResult]: Loop: 85#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 88#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 84#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 85#L21 [2021-10-28 23:32:06,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:06,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 23:32:06,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:06,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512537104] [2021-10-28 23:32:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:06,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:06,496 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:06,502 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:06,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:06,503 INFO L85 PathProgramCache]: Analyzing trace with hash 44774, now seen corresponding path program 1 times [2021-10-28 23:32:06,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:06,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454648987] [2021-10-28 23:32:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:06,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:06,513 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:06,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:06,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:06,520 INFO L85 PathProgramCache]: Analyzing trace with hash 29865565, now seen corresponding path program 1 times [2021-10-28 23:32:06,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:06,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266398760] [2021-10-28 23:32:06,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:06,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:06,530 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:06,539 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:06,621 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:06,621 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:06,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:06,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:06,622 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:32:06,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:06,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:06,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:06,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration2_Loop [2021-10-28 23:32:06,623 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:06,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:06,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:06,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:06,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:06,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:06,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:06,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:06,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:06,740 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:06,740 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:32:06,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:06,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:06,743 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:06,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:06,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:06,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:32:06,782 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:06,783 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:06,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:06,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:06,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:06,829 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:06,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:06,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:06,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:32:06,871 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:06,871 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:06,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:06,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:06,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:06,919 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:06,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:06,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:06,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:32:06,959 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:06,959 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:07,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:07,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:07,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:07,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:07,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:07,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:07,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:32:07,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:07,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:07,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:07,091 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:07,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:32:07,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:07,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:32:07,251 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:32:07,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:07,260 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:07,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:07,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:07,261 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:07,261 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:32:07,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:07,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:07,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:07,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration2_Loop [2021-10-28 23:32:07,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:07,262 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:07,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:07,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:07,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:07,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:07,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:07,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:07,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:07,393 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:07,393 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:32:07,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:07,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:07,395 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:07,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:07,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:07,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:07,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:07,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:07,427 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:32:07,427 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:32:07,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:32:07,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:07,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:07,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:07,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:07,501 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:07,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:32:07,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:07,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:07,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:07,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:07,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:07,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:07,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:07,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:07,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:07,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:07,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:07,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:07,574 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:07,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:32:07,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:07,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:07,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:07,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:07,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:07,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:32:07,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:32:07,608 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:07,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:07,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:07,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:07,656 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:07,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:07,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:07,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:07,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:07,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:07,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:07,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:07,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:07,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:32:07,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:32:07,699 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:32:07,699 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:32:07,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:07,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:07,701 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:07,712 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:32:07,712 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:32:07,713 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:32:07,713 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 23:32:07,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:32:07,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:07,757 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:32:07,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:07,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:07,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:07,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:07,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:07,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:07,865 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:32:07,865 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:07,897 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 49 transitions. Complement of second has 6 states. [2021-10-28 23:32:07,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:07,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-28 23:32:07,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2021-10-28 23:32:07,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:07,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 23:32:07,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:07,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-28 23:32:07,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:07,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2021-10-28 23:32:07,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:32:07,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 27 states and 42 transitions. [2021-10-28 23:32:07,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 23:32:07,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 23:32:07,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 42 transitions. [2021-10-28 23:32:07,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:32:07,919 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 42 transitions. [2021-10-28 23:32:07,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 42 transitions. [2021-10-28 23:32:07,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2021-10-28 23:32:07,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2021-10-28 23:32:07,929 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2021-10-28 23:32:07,930 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2021-10-28 23:32:07,930 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:32:07,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 38 transitions. [2021-10-28 23:32:07,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:32:07,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:32:07,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:32:07,933 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:32:07,933 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:32:07,935 INFO L791 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 164#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 165#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 170#L23 [2021-10-28 23:32:07,936 INFO L793 eck$LassoCheckResult]: Loop: 170#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 173#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 179#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 170#L23 [2021-10-28 23:32:07,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:07,937 INFO L85 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-28 23:32:07,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:07,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541334978] [2021-10-28 23:32:07,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:07,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:07,955 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:07,980 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:07,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:07,981 INFO L85 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 1 times [2021-10-28 23:32:07,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:07,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773196635] [2021-10-28 23:32:07,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:07,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:07,989 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:07,995 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:07,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:07,996 INFO L85 PathProgramCache]: Analyzing trace with hash 925834452, now seen corresponding path program 1 times [2021-10-28 23:32:07,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:07,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750806634] [2021-10-28 23:32:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:07,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:08,005 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:08,014 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:08,074 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:08,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:08,075 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:08,075 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:08,075 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:32:08,075 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,075 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:08,075 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:08,075 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration3_Loop [2021-10-28 23:32:08,076 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:08,076 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:08,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,208 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:08,208 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:32:08,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,209 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:32:08,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:08,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:08,243 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:08,243 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:08,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:08,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,296 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:08,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:08,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:32:08,329 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:08,329 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:08,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:08,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,374 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:32:08,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:08,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:08,409 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:08,409 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:08,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:08,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,435 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:32:08,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:08,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:08,454 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:08,454 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:08,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:08,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,480 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:32:08,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:08,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:08,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-28 23:32:08,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,518 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:32:08,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:32:08,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:08,642 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:32:08,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:08,646 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:08,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:08,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:08,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:08,646 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:32:08,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:08,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:08,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration3_Loop [2021-10-28 23:32:08,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:08,647 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:08,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:08,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:08,818 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:08,818 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:32:08,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,820 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:08,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:08,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:08,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:08,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:08,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:08,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:08,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:08,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:32:08,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:08,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:08,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,894 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,899 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:08,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:32:08,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:08,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:08,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:08,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:08,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:08,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:08,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:08,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:08,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:08,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:08,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:08,961 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:08,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:32:08,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:08,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:08,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:08,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:08,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:08,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:08,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:08,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:08,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:09,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:09,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:09,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:09,011 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:09,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:09,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:32:09,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:09,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:09,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:09,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:09,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:09,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:09,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:09,062 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:32:09,066 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:32:09,066 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:32:09,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:09,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:09,068 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:09,072 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:32:09,072 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:32:09,072 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:32:09,072 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-28 23:32:09,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:32:09,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:09,114 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:32:09,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:09,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:09,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:09,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:09,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:09,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:09,247 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:32:09,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:09,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 85 transitions. Complement of second has 7 states. [2021-10-28 23:32:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:09,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:09,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-10-28 23:32:09,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 23:32:09,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:09,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 23:32:09,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:09,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 23:32:09,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:09,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 85 transitions. [2021-10-28 23:32:09,304 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 23:32:09,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 49 states and 78 transitions. [2021-10-28 23:32:09,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 23:32:09,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 23:32:09,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 78 transitions. [2021-10-28 23:32:09,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:32:09,307 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 78 transitions. [2021-10-28 23:32:09,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 78 transitions. [2021-10-28 23:32:09,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2021-10-28 23:32:09,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.6170212765957446) internal successors, (76), 46 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2021-10-28 23:32:09,314 INFO L704 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2021-10-28 23:32:09,314 INFO L587 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2021-10-28 23:32:09,314 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:32:09,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 76 transitions. [2021-10-28 23:32:09,316 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 23:32:09,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:32:09,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:32:09,317 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2021-10-28 23:32:09,317 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:32:09,317 INFO L791 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 284#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 285#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 323#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 312#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 299#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 298#L23 [2021-10-28 23:32:09,318 INFO L793 eck$LassoCheckResult]: Loop: 298#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 308#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 309#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 298#L23 [2021-10-28 23:32:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:09,318 INFO L85 PathProgramCache]: Analyzing trace with hash 925832530, now seen corresponding path program 2 times [2021-10-28 23:32:09,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:09,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172389686] [2021-10-28 23:32:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:09,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:09,338 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:09,362 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:09,372 INFO L85 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 2 times [2021-10-28 23:32:09,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:09,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402973754] [2021-10-28 23:32:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:09,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:09,379 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:09,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:09,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:09,403 INFO L85 PathProgramCache]: Analyzing trace with hash -803054137, now seen corresponding path program 1 times [2021-10-28 23:32:09,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:09,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757415535] [2021-10-28 23:32:09,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:09,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:09,429 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:09,440 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:09,506 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:09,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:09,506 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:09,506 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:09,506 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:32:09,506 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:09,506 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:09,506 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:09,506 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration4_Loop [2021-10-28 23:32:09,507 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:09,507 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:09,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:09,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:09,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:09,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:09,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:09,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:09,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:09,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:09,626 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:32:09,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:09,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:09,631 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:09,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:09,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:09,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:32:09,672 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:09,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:09,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:09,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:09,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:09,714 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:09,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:09,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:09,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:32:09,739 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:09,740 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:09,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:09,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:09,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:09,781 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:09,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:09,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:09,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:32:09,807 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:09,807 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:09,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:09,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:09,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:09,857 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:09,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:09,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:09,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:32:09,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:09,881 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:09,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 23:32:09,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:09,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:09,912 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:09,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:09,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:09,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:32:09,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:09,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:09,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:09,959 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:09,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:32:09,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:32:09,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:10,051 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:32:10,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:10,055 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:10,055 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:10,055 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:10,055 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:10,055 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:32:10,055 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:10,055 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:10,056 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:10,057 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration4_Loop [2021-10-28 23:32:10,057 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:10,057 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:10,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:10,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:10,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:10,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:10,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:10,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:10,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:10,170 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:10,170 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:32:10,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:10,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:10,176 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:10,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:10,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:10,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:10,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:10,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:10,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:10,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:10,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:10,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:32:10,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:10,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:10,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:10,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:10,256 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:10,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:10,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:10,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:10,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:10,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:10,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:10,271 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:10,271 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:10,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:32:10,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:10,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:10,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:10,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:10,331 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:10,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:10,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:32:10,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:10,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:10,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:10,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:10,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:10,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:10,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:10,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:32:10,379 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:32:10,379 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:32:10,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:10,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:10,383 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:10,389 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:32:10,390 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:32:10,390 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:32:10,390 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-28 23:32:10,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:32:10,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:10,435 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:32:10,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:10,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:10,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:10,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:10,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:10,539 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:32:10,539 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:10,583 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 102 transitions. Complement of second has 7 states. [2021-10-28 23:32:10,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:10,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-10-28 23:32:10,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 23:32:10,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:10,591 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:32:10,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:10,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:10,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:10,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:10,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:10,688 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:32:10,689 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:10,729 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 60 states and 95 transitions. Complement of second has 7 states. [2021-10-28 23:32:10,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:10,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-10-28 23:32:10,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 23:32:10,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:10,732 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:32:10,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:10,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:10,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:10,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:10,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:10,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:10,818 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:32:10,819 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:10,851 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 137 transitions. Complement of second has 9 states. [2021-10-28 23:32:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:10,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 23:32:10,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 23:32:10,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:10,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 3 letters. [2021-10-28 23:32:10,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:10,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 6 letters. [2021-10-28 23:32:10,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:10,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 137 transitions. [2021-10-28 23:32:10,874 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-10-28 23:32:10,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 66 states and 103 transitions. [2021-10-28 23:32:10,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-28 23:32:10,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 23:32:10,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 103 transitions. [2021-10-28 23:32:10,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:32:10,877 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 103 transitions. [2021-10-28 23:32:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 103 transitions. [2021-10-28 23:32:10,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 38. [2021-10-28 23:32:10,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.605263157894737) internal successors, (61), 37 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:10,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2021-10-28 23:32:10,892 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2021-10-28 23:32:10,892 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2021-10-28 23:32:10,892 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:32:10,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 61 transitions. [2021-10-28 23:32:10,895 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:32:10,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:32:10,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:32:10,896 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-10-28 23:32:10,896 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:32:10,897 INFO L791 eck$LassoCheckResult]: Stem: 671#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 672#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 689#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 680#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 681#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 702#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 673#L23-2 [2021-10-28 23:32:10,897 INFO L793 eck$LassoCheckResult]: Loop: 673#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 674#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 673#L23-2 [2021-10-28 23:32:10,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:10,897 INFO L85 PathProgramCache]: Analyzing trace with hash 925834450, now seen corresponding path program 1 times [2021-10-28 23:32:10,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:10,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607572878] [2021-10-28 23:32:10,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:10,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:10,926 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:10,937 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:10,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:10,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-28 23:32:10,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:10,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294495638] [2021-10-28 23:32:10,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:10,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:10,954 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:10,962 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:10,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:10,963 INFO L85 PathProgramCache]: Analyzing trace with hash 668676501, now seen corresponding path program 2 times [2021-10-28 23:32:10,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:10,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946273842] [2021-10-28 23:32:10,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:10,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:11,024 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:11,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:11,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:11,114 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:11,114 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:11,114 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:11,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:11,114 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:32:11,115 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,115 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:11,115 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:11,115 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration5_Loop [2021-10-28 23:32:11,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:11,115 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:11,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:11,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,192 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:11,192 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:32:11,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,193 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:11,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:11,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:32:11,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:11,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:11,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:11,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,281 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:11,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:11,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:32:11,315 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:11,315 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:11,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:11,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,358 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:11,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:11,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:32:11,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:11,387 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:11,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 23:32:11,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,424 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:32:11,426 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:11,426 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:11,447 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:11,448 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=-1} Honda state: {ULTIMATE.start_main_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:11,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 23:32:11,473 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,474 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:11,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:11,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:32:11,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-28 23:32:11,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,516 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:32:11,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:32:11,518 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:11,559 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:32:11,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:11,562 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:11,563 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:11,563 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:11,563 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:11,563 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:32:11,563 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,563 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:11,563 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:11,563 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration5_Loop [2021-10-28 23:32:11,563 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:11,563 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:11,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:11,649 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:11,649 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:32:11,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,650 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:11,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:11,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:11,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:11,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:11,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:32:11,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:32:11,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:32:11,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:11,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:11,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,740 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:11,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:11,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:11,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:11,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:11,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:11,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:11,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:11,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:32:11,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:11,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:11,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,809 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:11,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:11,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:11,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:11,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:11,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:32:11,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:32:11,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:32:11,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:11,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-28 23:32:11,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,870 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:32:11,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:11,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:11,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:11,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:11,884 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:32:11,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:11,885 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:32:11,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:11,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:11,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:11,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,934 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:32:11,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:11,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:11,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:11,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:11,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:11,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:11,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:11,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:11,947 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:32:11,950 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:32:11,950 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:32:11,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:11,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:11,953 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:11,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:32:11,954 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:32:11,954 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:32:11,954 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:32:11,954 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 23:32:11,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:11,979 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:32:11,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:12,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:12,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:12,035 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:12,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:12,056 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:32:12,057 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:12,080 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 100 states and 153 transitions. Complement of second has 5 states. [2021-10-28 23:32:12,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:12,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:12,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:32:12,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 23:32:12,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:12,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 23:32:12,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:12,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 23:32:12,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:12,089 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 153 transitions. [2021-10-28 23:32:12,092 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:32:12,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 82 states and 129 transitions. [2021-10-28 23:32:12,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 23:32:12,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 23:32:12,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 129 transitions. [2021-10-28 23:32:12,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:32:12,099 INFO L681 BuchiCegarLoop]: Abstraction has 82 states and 129 transitions. [2021-10-28 23:32:12,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 129 transitions. [2021-10-28 23:32:12,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2021-10-28 23:32:12,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.608695652173913) internal successors, (111), 68 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 111 transitions. [2021-10-28 23:32:12,114 INFO L704 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2021-10-28 23:32:12,114 INFO L587 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2021-10-28 23:32:12,114 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:32:12,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 111 transitions. [2021-10-28 23:32:12,116 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:32:12,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:32:12,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:32:12,118 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2021-10-28 23:32:12,118 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:32:12,118 INFO L791 eck$LassoCheckResult]: Stem: 854#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 855#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 898#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 915#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 858#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 868#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 891#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 887#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 871#L23-2 [2021-10-28 23:32:12,119 INFO L793 eck$LassoCheckResult]: Loop: 871#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 870#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 871#L23-2 [2021-10-28 23:32:12,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:12,119 INFO L85 PathProgramCache]: Analyzing trace with hash 602338671, now seen corresponding path program 3 times [2021-10-28 23:32:12,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:12,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942650732] [2021-10-28 23:32:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:12,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:12,137 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:12,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:12,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-28 23:32:12,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:12,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644849410] [2021-10-28 23:32:12,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:12,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:12,152 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:12,155 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:12,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:12,159 INFO L85 PathProgramCache]: Analyzing trace with hash -973121806, now seen corresponding path program 4 times [2021-10-28 23:32:12,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:12,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568662542] [2021-10-28 23:32:12,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:12,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:12,172 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:12,190 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:12,228 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:12,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:12,228 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:12,228 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:12,228 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:32:12,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:12,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:12,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration6_Loop [2021-10-28 23:32:12,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:12,229 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:12,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,303 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:12,303 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:32:12,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,304 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:32:12,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:12,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:12,329 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:12,329 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:12,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:12,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,354 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:32:12,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:12,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:12,371 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:12,371 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:12,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-28 23:32:12,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,396 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:32:12,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:12,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:12,414 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:12,414 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:12,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 23:32:12,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,440 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:32:12,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:12,441 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:12,457 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:32:12,457 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=-1} Honda state: {ULTIMATE.start_main_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:32:12,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 23:32:12,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,483 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:32:12,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:12,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:12,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 23:32:12,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,523 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:32:12,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:32:12,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:12,563 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:32:12,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-28 23:32:12,566 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:12,566 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:12,566 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:12,567 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:12,567 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:32:12,567 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,567 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:12,567 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:12,567 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b.c_Iteration6_Loop [2021-10-28 23:32:12,567 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:12,567 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:12,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:12,642 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:12,642 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:32:12,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,643 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,660 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:12,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:12,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:12,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:12,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:12,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:12,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:12,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:12,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:32:12,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:12,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:12,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,700 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:32:12,703 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:12,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:12,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:12,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:12,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:12,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:32:12,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:32:12,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:12,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 23:32:12,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,775 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:32:12,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:12,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:12,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:12,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:12,785 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:32:12,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:12,786 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:32:12,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:12,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:32:12,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-10-28 23:32:12,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,813 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:32:12,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:32:12,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:12,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:12,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:12,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:12,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:12,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:12,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:12,829 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:32:12,831 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:32:12,831 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:32:12,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:12,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:12,832 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:12,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:32:12,834 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:32:12,834 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:32:12,834 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:32:12,834 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 23:32:12,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:12,860 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:32:12,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:12,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:12,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:12,923 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:12,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:12,949 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:32:12,950 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:12,965 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 109 states and 164 transitions. Complement of second has 5 states. [2021-10-28 23:32:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:12,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:32:12,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 23:32:12,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:12,967 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:32:12,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:12,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:12,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:13,029 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:13,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:13,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:13,054 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:32:13,055 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:13,071 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 109 states and 164 transitions. Complement of second has 5 states. [2021-10-28 23:32:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:13,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:13,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:32:13,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 23:32:13,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:13,087 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:32:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:13,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:13,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:13,135 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:13,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:13,152 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:32:13,152 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:13,167 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 125 states and 192 transitions. Complement of second has 4 states. [2021-10-28 23:32:13,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:32:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:32:13,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2021-10-28 23:32:13,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 23:32:13,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:13,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-28 23:32:13,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:13,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-28 23:32:13,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:13,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 192 transitions. [2021-10-28 23:32:13,172 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:32:13,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 0 states and 0 transitions. [2021-10-28 23:32:13,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:32:13,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:32:13,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:32:13,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:32:13,173 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:32:13,173 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:32:13,174 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:32:13,174 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:32:13,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:32:13,174 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:32:13,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:32:13,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:32:13 BoogieIcfgContainer [2021-10-28 23:32:13,181 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:32:13,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:32:13,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:32:13,183 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:32:13,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:32:04" (3/4) ... [2021-10-28 23:32:13,187 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:32:13,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:32:13,189 INFO L168 Benchmark]: Toolchain (without parser) took 9382.68 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 82.2 MB in the beginning and 53.5 MB in the end (delta: 28.7 MB). Peak memory consumption was 68.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:13,190 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 91.4 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:32:13,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.42 ms. Allocated memory is still 117.4 MB. Free memory was 82.2 MB in the beginning and 94.3 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:13,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.93 ms. Allocated memory is still 117.4 MB. Free memory was 94.3 MB in the beginning and 92.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:32:13,191 INFO L168 Benchmark]: Boogie Preprocessor took 26.20 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 92.2 MB in the end (delta: 530.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:32:13,192 INFO L168 Benchmark]: RCFGBuilder took 321.78 ms. Allocated memory is still 117.4 MB. Free memory was 91.5 MB in the beginning and 83.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:13,192 INFO L168 Benchmark]: BuchiAutomizer took 8632.78 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 83.1 MB in the beginning and 54.6 MB in the end (delta: 28.5 MB). Peak memory consumption was 69.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:13,193 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 157.3 MB. Free memory was 54.6 MB in the beginning and 53.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:13,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 91.4 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.42 ms. Allocated memory is still 117.4 MB. Free memory was 82.2 MB in the beginning and 94.3 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.93 ms. Allocated memory is still 117.4 MB. Free memory was 94.3 MB in the beginning and 92.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.20 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 92.2 MB in the end (delta: 530.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 321.78 ms. Allocated memory is still 117.4 MB. Free memory was 91.5 MB in the beginning and 83.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8632.78 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 83.1 MB in the beginning and 54.6 MB in the end (delta: 28.5 MB). Peak memory consumption was 69.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.18 ms. Allocated memory is still 157.3 MB. Free memory was 54.6 MB in the beginning and 53.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function z and consists of 4 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.5s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 6.8s. Construction of modules took 0.0s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 48 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 81 SDtfs, 81 SDslu, 35 SDs, 0 SdLazy, 73 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax153 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 21 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:32:13,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 23:32:13,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 23:32:13,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62705c73-9d66-48a4-b871-5cf162df75aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...