./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaC9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaC9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt --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 ddb977b9fea860f52c9087edc999243e3a2c7a92 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:50:11,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:50:11,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:50:11,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:50:11,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:50:11,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:50:11,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:50:11,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:50:11,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:50:11,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:50:11,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:50:11,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:50:11,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:50:11,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:50:11,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:50:11,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:50:11,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:50:11,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:50:11,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:50:11,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:50:11,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:50:11,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:50:11,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:50:11,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:50:11,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:50:11,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:50:11,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:50:11,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:50:11,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:50:11,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:50:11,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:50:11,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:50:11,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:50:11,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:50:11,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:50:11,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:50:11,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:50:11,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:50:11,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:50:11,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:50:11,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:50:11,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:50:11,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:50:11,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:50:11,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:50:11,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:50:11,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:50:11,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:50:11,227 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:50:11,227 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:50:11,227 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:50:11,228 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:50:11,229 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:50:11,229 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:50:11,229 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:50:11,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:50:11,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:50:11,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:50:11,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:50:11,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:50:11,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:50:11,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:50:11,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:50:11,231 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:50:11,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:50:11,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:50:11,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:50:11,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:50:11,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:50:11,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:50:11,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:50:11,234 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:50:11,234 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_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddb977b9fea860f52c9087edc999243e3a2c7a92 [2021-10-13 00:50:11,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:50:11,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:50:11,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:50:11,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:50:11,516 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:50:11,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-restricted-15/PastaC9.c [2021-10-13 00:50:11,629 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/data/de5c309b5/4815f85ebca749399960c88ade7550f4/FLAG5f2047127 [2021-10-13 00:50:12,109 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:50:12,109 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/sv-benchmarks/c/termination-restricted-15/PastaC9.c [2021-10-13 00:50:12,121 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/data/de5c309b5/4815f85ebca749399960c88ade7550f4/FLAG5f2047127 [2021-10-13 00:50:12,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/data/de5c309b5/4815f85ebca749399960c88ade7550f4 [2021-10-13 00:50:12,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:50:12,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:50:12,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:50:12,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:50:12,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:50:12,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5261c568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12, skipping insertion in model container [2021-10-13 00:50:12,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:50:12,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:50:12,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:50:12,777 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:50:12,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:50:12,812 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:50:12,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12 WrapperNode [2021-10-13 00:50:12,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:50:12,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:50:12,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:50:12,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:50:12,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:50:12,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:50:12,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:50:12,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:50:12,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:50:12,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:50:12,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:50:12,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:50:12,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (1/1) ... [2021-10-13 00:50:12,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:12,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:12,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:12,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:50:12,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:50:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:50:13,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:50:13,132 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 00:50:13,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:50:13 BoogieIcfgContainer [2021-10-13 00:50:13,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:50:13,139 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:50:13,140 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:50:13,143 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:50:13,144 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:50:13,144 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:50:12" (1/3) ... [2021-10-13 00:50:13,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26d463f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:50:13, skipping insertion in model container [2021-10-13 00:50:13,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:50:13,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:50:12" (2/3) ... [2021-10-13 00:50:13,146 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26d463f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:50:13, skipping insertion in model container [2021-10-13 00:50:13,146 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:50:13,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:50:13" (3/3) ... [2021-10-13 00:50:13,148 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaC9.c [2021-10-13 00:50:13,195 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:50:13,195 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:50:13,195 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:50:13,195 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:50:13,196 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:50:13,196 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:50:13,196 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:50:13,196 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:50:13,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-13 00:50:13,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:50:13,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:50:13,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:50:13,227 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 00:50:13,228 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:50:13,228 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:50:13,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-13 00:50:13,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:50:13,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:50:13,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:50:13,229 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 00:50:13,230 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:50:13,235 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L14-2true [2021-10-13 00:50:13,235 INFO L793 eck$LassoCheckResult]: Loop: 8#L14-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L14true assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 8#L14-2true [2021-10-13 00:50:13,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:13,241 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-13 00:50:13,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:50:13,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430828250] [2021-10-13 00:50:13,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:50:13,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:50:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:13,314 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:50:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:13,332 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:13,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:13,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-13 00:50:13,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:50:13,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306310707] [2021-10-13 00:50:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:50:13,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:50:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:13,347 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:50:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:13,355 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:13,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:13,357 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-13 00:50:13,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:50:13,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90916556] [2021-10-13 00:50:13,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:50:13,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:50:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:13,366 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:50:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:13,375 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:13,485 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:50:13,485 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:50:13,485 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:50:13,486 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:50:13,486 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:50:13,486 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:13,486 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:50:13,486 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:50:13,486 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration1_Loop [2021-10-13 00:50:13,487 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:50:13,487 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:50:13,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:13,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:13,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:13,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:13,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:13,670 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:50:13,671 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:50:13,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:13,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:13,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:13,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:13,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:13,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:50:13,696 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:50:13,697 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: [] [2021-10-13 00:50:13,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:13,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:13,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:13,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:13,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:50:13,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:13,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:13,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:50:13,755 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: [] [2021-10-13 00:50:13,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:13,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:13,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:13,779 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:13,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:50:13,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:13,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:13,811 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:50:13,811 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=41} Honda state: {ULTIMATE.start_main_#t~nondet2=41} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:50:13,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:13,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:13,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:13,842 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:13,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:50:13,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:13,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:13,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:13,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:13,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:13,919 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:13,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:50:13,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:50:13,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:13,971 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:50:13,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:13,978 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:50:13,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:50:13,978 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:50:13,978 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:50:13,979 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:50:13,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:13,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:50:13,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:50:13,979 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration1_Loop [2021-10-13 00:50:13,979 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:50:13,979 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:50:13,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:13,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:13,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:13,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:14,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:14,132 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:50:14,137 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:50:14,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:14,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:14,165 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:14,202 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 [2021-10-13 00:50:14,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:14,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:14,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:14,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:14,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:50:14,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:50:14,226 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:50:14,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:50:14,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:14,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:14,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:14,276 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:14,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:50:14,278 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 [2021-10-13 00:50:14,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:14,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:14,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:14,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:14,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:50:14,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:50:14,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:50:14,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:14,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:14,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:14,333 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:14,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:50:14,335 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 [2021-10-13 00:50:14,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:14,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:50:14,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:14,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:14,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:14,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:50:14,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:50:14,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:50:14,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:14,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:14,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:14,397 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:14,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:50:14,399 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 [2021-10-13 00:50:14,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:14,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:50:14,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:14,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:14,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:14,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:50:14,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:50:14,422 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:50:14,426 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:50:14,426 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:50:14,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:14,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:14,429 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:14,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:50:14,430 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:50:14,430 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:50:14,430 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:50:14,431 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 00:50:14,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:14,457 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:50:14,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:14,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:50:14,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:14,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:50:14,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:50:14,584 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 [2021-10-13 00:50:14,586 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-13 00:50:14,633 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 28 states and 35 transitions. Complement of second has 7 states. [2021-10-13 00:50:14,633 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 [2021-10-13 00:50:14,635 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) [2021-10-13 00:50:14,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2021-10-13 00:50:14,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-13 00:50:14,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:14,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 00:50:14,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:14,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-13 00:50:14,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:14,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-13 00:50:14,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:50:14,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2021-10-13 00:50:14,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-13 00:50:14,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-13 00:50:14,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-13 00:50:14,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:50:14,648 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-13 00:50:14,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-13 00:50:14,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-13 00:50:14,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-13 00:50:14,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-13 00:50:14,675 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 00:50:14,675 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 00:50:14,675 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:50:14,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-13 00:50:14,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:50:14,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:50:14,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:50:14,676 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:50:14,676 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:50:14,677 INFO L791 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 72#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 73#L14 [2021-10-13 00:50:14,677 INFO L793 eck$LassoCheckResult]: Loop: 73#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 74#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 73#L14 [2021-10-13 00:50:14,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:14,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-13 00:50:14,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:50:14,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832482126] [2021-10-13 00:50:14,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:50:14,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:50:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:14,684 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:50:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:14,689 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:14,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:14,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2021-10-13 00:50:14,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:50:14,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052605744] [2021-10-13 00:50:14,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:50:14,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:50:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:14,703 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:50:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:14,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:14,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:14,712 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2021-10-13 00:50:14,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:50:14,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137249205] [2021-10-13 00:50:14,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:50:14,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:50:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:14,722 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:50:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:14,729 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:14,763 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:50:14,763 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:50:14,763 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:50:14,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:50:14,764 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:50:14,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:14,764 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:50:14,764 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:50:14,764 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration2_Loop [2021-10-13 00:50:14,764 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:50:14,764 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:50:14,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:14,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:14,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:14,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:14,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:14,853 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:50:14,853 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:50:14,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:14,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:14,862 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:14,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:14,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:14,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:50:14,898 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:50:14,898 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: [] [2021-10-13 00:50:14,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:14,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:14,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:14,937 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:14,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:50:14,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:14,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:14,970 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:50:14,970 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=59, ULTIMATE.start_main_#t~nondet2=59} Honda state: {ULTIMATE.start_main_~random~0=59, ULTIMATE.start_main_#t~nondet2=59} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:50:15,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,010 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:15,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:15,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:50:15,038 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:50:15,038 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: [] [2021-10-13 00:50:15,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,072 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,078 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:50:15,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:15,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:15,116 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:50:15,116 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:50:15,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,139 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:50:15,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:15,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:15,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,170 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:50:15,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:50:15,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:15,269 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:50:15,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-13 00:50:15,273 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:50:15,273 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:50:15,273 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:50:15,273 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:50:15,273 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:50:15,273 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,273 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:50:15,274 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:50:15,274 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration2_Loop [2021-10-13 00:50:15,274 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:50:15,274 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:50:15,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,376 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:50:15,376 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:50:15,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,378 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:50:15,388 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 [2021-10-13 00:50:15,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:15,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:15,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:15,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:15,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:50:15,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:50:15,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:50:15,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,454 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,462 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 [2021-10-13 00:50:15,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:15,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:50:15,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:15,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:15,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:15,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:50:15,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:50:15,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:50:15,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:50:15,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,530 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:50:15,538 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 [2021-10-13 00:50:15,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:15,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:15,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:15,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:15,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:50:15,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:50:15,562 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:50:15,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,601 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:50:15,606 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 [2021-10-13 00:50:15,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:15,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:50:15,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:15,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:15,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:15,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:50:15,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:50:15,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:50:15,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,641 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:50:15,642 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 [2021-10-13 00:50:15,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:15,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:50:15,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:15,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:15,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:15,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:50:15,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:50:15,653 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:50:15,673 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 00:50:15,674 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:50:15,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,678 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:50:15,680 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:50:15,680 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:50:15,680 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:50:15,680 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 00:50:15,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,701 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:50:15,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:15,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:50:15,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:15,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:50:15,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:15,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:50:15,750 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 [2021-10-13 00:50:15,750 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-13 00:50:15,767 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 14 states and 19 transitions. Complement of second has 5 states. [2021-10-13 00:50:15,767 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 [2021-10-13 00:50:15,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-13 00:50:15,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:50:15,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 00:50:15,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:15,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:50:15,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:15,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-13 00:50:15,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:15,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-10-13 00:50:15,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:50:15,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 9 states and 12 transitions. [2021-10-13 00:50:15,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-13 00:50:15,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-13 00:50:15,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-10-13 00:50:15,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:50:15,772 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-10-13 00:50:15,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-10-13 00:50:15,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2021-10-13 00:50:15,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-13 00:50:15,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-13 00:50:15,774 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-13 00:50:15,774 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-13 00:50:15,774 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:50:15,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-13 00:50:15,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:50:15,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:50:15,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:50:15,775 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-13 00:50:15,776 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:50:15,776 INFO L791 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 126#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 129#L14 assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 130#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 127#L14 [2021-10-13 00:50:15,776 INFO L793 eck$LassoCheckResult]: Loop: 127#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 128#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 127#L14 [2021-10-13 00:50:15,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:15,777 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2021-10-13 00:50:15,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:50:15,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513477972] [2021-10-13 00:50:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:50:15,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:50:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:15,784 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:50:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:15,792 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:15,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:15,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2021-10-13 00:50:15,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:50:15,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295282520] [2021-10-13 00:50:15,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:50:15,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:50:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:15,845 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:50:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:15,850 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:15,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:15,851 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 1 times [2021-10-13 00:50:15,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:50:15,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001776771] [2021-10-13 00:50:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:50:15,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:50:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:15,865 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:50:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:50:15,873 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:15,903 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:50:15,904 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:50:15,904 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:50:15,904 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:50:15,904 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:50:15,904 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,904 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:50:15,904 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:50:15,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration3_Loop [2021-10-13 00:50:15,905 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:50:15,905 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:50:15,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:15,972 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:50:15,972 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:50:15,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:15,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:15,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:15,991 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:15,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:50:15,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:16,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:50:16,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:16,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:16,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:16,054 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:16,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:50:16,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:50:16,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:50:16,170 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:50:16,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:16,173 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:50:16,173 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:50:16,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:50:16,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:50:16,174 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:50:16,174 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:16,174 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:50:16,174 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:50:16,174 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration3_Loop [2021-10-13 00:50:16,174 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:50:16,174 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:50:16,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:16,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:16,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:16,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:16,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:50:16,250 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:50:16,250 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:50:16,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:16,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:16,251 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:16,254 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 [2021-10-13 00:50:16,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:50:16,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:50:16,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:50:16,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:50:16,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:50:16,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:50:16,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:50:16,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:50:16,277 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:50:16,281 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:50:16,281 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:50:16,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:50:16,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:50:16,283 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:50:16,285 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:50:16,285 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:50:16,285 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:50:16,285 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 00:50:16,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:50:16,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:16,322 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:50:16,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:16,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:50:16,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:16,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:50:16,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:50:16,373 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 [2021-10-13 00:50:16,374 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-13 00:50:16,389 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 10 states and 13 transitions. Complement of second has 5 states. [2021-10-13 00:50:16,390 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 [2021-10-13 00:50:16,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-13 00:50:16,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:50:16,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:50:16,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:16,391 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:50:16,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:16,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:50:16,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:16,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:50:16,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:50:16,437 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 [2021-10-13 00:50:16,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-13 00:50:16,453 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 10 states and 13 transitions. Complement of second has 5 states. [2021-10-13 00:50:16,453 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 [2021-10-13 00:50:16,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-13 00:50:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:50:16,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:50:16,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:16,454 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:50:16,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:50:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:16,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:50:16,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:50:16,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:50:16,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:50:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:50:16,501 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 [2021-10-13 00:50:16,502 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-13 00:50:16,518 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 10 states and 13 transitions. Complement of second has 4 states. [2021-10-13 00:50:16,519 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 [2021-10-13 00:50:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-13 00:50:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-13 00:50:16,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:50:16,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:16,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-13 00:50:16,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:16,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-13 00:50:16,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:50:16,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2021-10-13 00:50:16,523 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:50:16,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2021-10-13 00:50:16,524 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:50:16,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:50:16,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:50:16,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:50:16,524 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:50:16,524 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:50:16,524 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:50:16,525 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:50:16,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:50:16,525 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:50:16,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:50:16,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:50:16 BoogieIcfgContainer [2021-10-13 00:50:16,532 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:50:16,532 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:50:16,532 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:50:16,533 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:50:16,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:50:13" (3/4) ... [2021-10-13 00:50:16,537 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:50:16,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:50:16,539 INFO L168 Benchmark]: Toolchain (without parser) took 3924.79 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 88.7 MB in the beginning and 99.9 MB in the end (delta: -11.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:16,539 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory is still 40.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:50:16,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.01 ms. Allocated memory is still 121.6 MB. Free memory was 88.4 MB in the beginning and 98.6 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:16,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.15 ms. Allocated memory is still 121.6 MB. Free memory was 98.6 MB in the beginning and 97.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:50:16,541 INFO L168 Benchmark]: Boogie Preprocessor took 20.36 ms. Allocated memory is still 121.6 MB. Free memory was 97.3 MB in the beginning and 96.7 MB in the end (delta: 621.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:16,541 INFO L168 Benchmark]: RCFGBuilder took 259.64 ms. Allocated memory is still 121.6 MB. Free memory was 96.2 MB in the beginning and 89.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:16,542 INFO L168 Benchmark]: BuchiAutomizer took 3392.55 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 88.6 MB in the beginning and 100.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:16,543 INFO L168 Benchmark]: Witness Printer took 4.70 ms. Allocated memory is still 153.1 MB. Free memory was 100.7 MB in the beginning and 99.9 MB in the end (delta: 798.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:16,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory is still 40.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 199.01 ms. Allocated memory is still 121.6 MB. Free memory was 88.4 MB in the beginning and 98.6 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.15 ms. Allocated memory is still 121.6 MB. Free memory was 98.6 MB in the beginning and 97.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.36 ms. Allocated memory is still 121.6 MB. Free memory was 97.3 MB in the beginning and 96.7 MB in the end (delta: 621.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 259.64 ms. Allocated memory is still 121.6 MB. Free memory was 96.2 MB in the beginning and 89.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3392.55 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 88.6 MB in the beginning and 100.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.70 ms. Allocated memory is still 153.1 MB. Free memory was 100.7 MB in the beginning and 99.9 MB in the end (delta: 798.4 kB). 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 3 terminating modules (0 trivial, 2 deterministic, 1 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 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 13.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 10 SDs, 0 SdLazy, 31 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.3ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 100ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:50:16,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:16,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbe09fb-abda-430f-b962-addba5faf995/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...