./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaC3.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_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/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_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaC3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/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_5a5b410a-6cdf-49da-87e3-91112c096429/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 d74da2e3412ebf25201dbb4db5374c4c67ab19bd ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:17:02,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:17:02,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:17:02,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:17:02,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:17:02,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:17:02,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:17:02,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:17:02,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:17:02,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:17:02,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:17:02,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:17:02,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:17:02,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:17:02,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:17:02,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:17:02,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:17:02,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:17:02,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:17:02,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:17:02,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:17:02,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:17:02,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:17:02,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:17:02,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:17:02,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:17:02,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:17:02,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:17:02,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:17:02,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:17:02,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:17:02,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:17:02,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:17:02,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:17:02,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:17:02,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:17:02,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:17:02,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:17:02,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:17:02,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:17:02,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:17:02,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 01:17:02,536 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:17:02,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:17:02,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:17:02,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:17:02,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:17:02,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:17:02,539 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:17:02,540 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:17:02,540 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:17:02,540 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:17:02,541 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:17:02,542 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:17:02,542 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:17:02,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:17:02,542 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:17:02,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:17:02,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:17:02,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:17:02,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:17:02,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:17:02,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:17:02,544 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:17:02,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:17:02,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:17:02,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:17:02,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:17:02,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:17:02,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:17:02,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:17:02,546 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:17:02,547 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_5a5b410a-6cdf-49da-87e3-91112c096429/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d74da2e3412ebf25201dbb4db5374c4c67ab19bd [2021-10-13 01:17:02,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:17:02,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:17:02,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:17:02,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:17:02,868 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:17:02,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-restricted-15/PastaC3.c [2021-10-13 01:17:02,956 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/data/bfe5de829/bedfa998cabb450d8cff297f5a44a83e/FLAGb71224098 [2021-10-13 01:17:03,556 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:17:03,557 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/sv-benchmarks/c/termination-restricted-15/PastaC3.c [2021-10-13 01:17:03,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/data/bfe5de829/bedfa998cabb450d8cff297f5a44a83e/FLAGb71224098 [2021-10-13 01:17:03,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/data/bfe5de829/bedfa998cabb450d8cff297f5a44a83e [2021-10-13 01:17:03,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:17:03,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:17:03,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:17:03,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:17:03,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:17:03,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:17:03" (1/1) ... [2021-10-13 01:17:03,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e27724f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:03, skipping insertion in model container [2021-10-13 01:17:03,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:17:03" (1/1) ... [2021-10-13 01:17:03,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:17:03,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:17:04,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:17:04,143 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:17:04,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:17:04,170 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:17:04,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04 WrapperNode [2021-10-13 01:17:04,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:17:04,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:17:04,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:17:04,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:17:04,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:17:04,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:17:04,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:17:04,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:17:04,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:17:04,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:17:04,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:17:04,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:17:04,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (1/1) ... [2021-10-13 01:17:04,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:04,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:04,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:04,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:17:04,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:17:04,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:17:04,480 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:17:04,481 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 01:17:04,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:04 BoogieIcfgContainer [2021-10-13 01:17:04,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:17:04,485 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:17:04,485 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:17:04,488 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:17:04,489 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:17:04,489 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:17:03" (1/3) ... [2021-10-13 01:17:04,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1873267f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:17:04, skipping insertion in model container [2021-10-13 01:17:04,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:17:04,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04" (2/3) ... [2021-10-13 01:17:04,492 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1873267f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:17:04, skipping insertion in model container [2021-10-13 01:17:04,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:17:04,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:04" (3/3) ... [2021-10-13 01:17:04,494 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaC3.c [2021-10-13 01:17:04,553 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:17:04,553 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:17:04,553 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:17:04,553 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:17:04,553 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:17:04,553 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:17:04,554 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:17:04,554 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:17:04,569 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 01:17:04,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:17:04,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:04,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:04,593 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:17:04,593 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:04,593 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:17:04,594 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 01:17:04,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:17:04,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:04,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:04,596 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:17:04,596 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:04,603 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L14-2true [2021-10-13 01:17:04,603 INFO L793 eck$LassoCheckResult]: Loop: 8#L14-2true assume !!(main_~x~0 < main_~y~0); 7#L14true assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 8#L14-2true [2021-10-13 01:17:04,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:04,610 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-13 01:17:04,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:04,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84270387] [2021-10-13 01:17:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:04,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:04,709 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:04,741 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:04,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:04,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-13 01:17:04,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:04,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060638830] [2021-10-13 01:17:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:04,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:04,771 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:04,788 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:04,790 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-13 01:17:04,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:04,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659541457] [2021-10-13 01:17:04,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:04,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:04,802 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:04,826 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:04,931 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:04,932 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:04,932 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:04,932 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:04,932 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:17:04,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:04,933 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:04,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:04,933 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2021-10-13 01:17:04,933 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:04,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:04,952 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 01:17:04,961 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 01:17:04,965 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 01:17:05,078 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:05,079 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:17:05,081 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:05,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:05,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:05,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:05,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:05,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:17:05,124 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:17:05,125 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 01:17:05,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:05,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:05,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:05,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:05,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:05,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:05,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:17:05,197 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:17:05,197 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 01:17:05,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:05,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:05,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:05,237 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:05,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:05,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:05,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:17:05,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:05,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:05,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:05,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:05,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:17:05,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:05,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:17:05,536 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:17:05,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:05,545 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:05,545 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:05,545 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:05,545 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:05,546 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:05,546 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:05,546 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:05,546 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:05,546 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2021-10-13 01:17:05,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:05,547 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:05,549 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 01:17:05,553 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 01:17:05,562 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 01:17:05,642 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:05,647 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:05,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:05,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:05,658 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:05,661 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 01:17:05,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:05,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:05,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:05,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:05,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:17:05,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:05,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:05,714 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:05,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:05,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:05,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:05,739 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:05,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:17:05,741 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 01:17:05,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:05,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:05,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:05,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:05,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:05,753 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:05,780 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:05,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:05,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:05,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:05,821 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:05,833 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 01:17:05,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:05,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:05,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:05,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:05,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:05,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:05,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:05,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:17:05,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:05,871 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 01:17:05,871 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:17:05,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:05,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:05,874 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:05,880 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:05,880 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:17:05,880 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:05,881 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-13 01:17:05,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:17:05,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:05,918 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:17:05,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:05,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:05,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:05,993 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:05,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:06,004 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 01:17:06,022 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:17:06,024 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 01:17:06,074 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 23 states and 30 transitions. Complement of second has 6 states. [2021-10-13 01:17:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:17:06,077 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 01:17:06,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-13 01:17:06,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-13 01:17:06,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:06,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 01:17:06,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:06,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-13 01:17:06,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:06,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-13 01:17:06,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:17:06,092 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-13 01:17:06,093 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-13 01:17:06,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-13 01:17:06,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-13 01:17:06,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:06,095 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 01:17:06,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-13 01:17:06,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-13 01:17:06,120 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 01:17:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-13 01:17:06,122 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 01:17:06,122 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 01:17:06,122 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:17:06,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-13 01:17:06,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:17:06,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:06,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:06,124 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 01:17:06,124 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:06,124 INFO L791 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 64#L14-2 assume !!(main_~x~0 < main_~y~0); 65#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 66#L14-2 [2021-10-13 01:17:06,124 INFO L793 eck$LassoCheckResult]: Loop: 66#L14-2 assume !!(main_~x~0 < main_~y~0); 69#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 66#L14-2 [2021-10-13 01:17:06,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:06,125 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-13 01:17:06,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:06,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889951112] [2021-10-13 01:17:06,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:06,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:06,142 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:06,153 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:06,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:06,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-13 01:17:06,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:06,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733771500] [2021-10-13 01:17:06,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:06,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:06,173 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:06,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:06,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:06,189 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-10-13 01:17:06,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:06,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325973831] [2021-10-13 01:17:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:06,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:06,198 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:06,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:06,228 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:06,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:06,228 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:06,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:06,229 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:17:06,229 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:06,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:06,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:06,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2021-10-13 01:17:06,230 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:06,230 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:06,231 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 01:17:06,235 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 01:17:06,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:06,280 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:06,281 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:17:06,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:06,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:06,289 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:06,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:06,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:06,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:17:06,361 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:17:06,361 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 01:17:06,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:06,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:06,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:06,407 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:06,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:06,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:06,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:17:06,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:06,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:06,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:06,484 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:06,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:17:06,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:06,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:17:06,728 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:17:06,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:06,736 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:06,737 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:06,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:06,737 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:06,737 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:06,737 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:06,737 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:06,737 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:06,737 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2021-10-13 01:17:06,737 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:06,738 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:06,739 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 01:17:06,750 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 01:17:06,754 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 01:17:06,809 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:06,809 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:06,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:06,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:06,813 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:06,818 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 01:17:06,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:06,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:06,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:06,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:06,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:06,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:06,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:06,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 01:17:06,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:06,857 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 01:17:06,857 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:17:06,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:06,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:06,862 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:06,865 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:06,865 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:17:06,865 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:06,866 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-13 01:17:06,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 01:17:06,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:06,902 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:17:06,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:06,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:06,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:06,944 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:06,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:06,953 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 01:17:06,954 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:17:06,954 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:17:06,964 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-10-13 01:17:06,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:17:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:17:06,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-13 01:17:06,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 01:17:06,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:06,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 01:17:06,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:06,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-13 01:17:06,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:06,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-13 01:17:06,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:17:06,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-13 01:17:06,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:17:06,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 01:17:06,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-13 01:17:06,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:06,970 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-13 01:17:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-13 01:17:06,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-13 01:17:06,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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 01:17:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-13 01:17:06,973 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-13 01:17:06,973 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-13 01:17:06,973 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:17:06,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-10-13 01:17:06,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:17:06,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:06,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:06,975 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-13 01:17:06,975 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:06,975 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 117#L14-2 assume !!(main_~x~0 < main_~y~0); 118#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 119#L14-2 assume !!(main_~x~0 < main_~y~0); 124#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 122#L14-2 [2021-10-13 01:17:06,975 INFO L793 eck$LassoCheckResult]: Loop: 122#L14-2 assume !!(main_~x~0 < main_~y~0); 123#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 122#L14-2 [2021-10-13 01:17:06,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:06,976 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-10-13 01:17:06,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:06,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424507344] [2021-10-13 01:17:06,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:06,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:06,984 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:06,990 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:06,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:06,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-13 01:17:06,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:06,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227661928] [2021-10-13 01:17:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:06,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:06,996 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:07,000 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:07,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2021-10-13 01:17:07,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:07,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050278673] [2021-10-13 01:17:07,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:07,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:07,009 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:07,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:07,036 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:07,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:07,037 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:07,037 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:07,037 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:17:07,037 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:07,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:07,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:07,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2021-10-13 01:17:07,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:07,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:07,040 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 01:17:07,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:07,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:07,088 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:07,088 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:17:07,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:07,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:07,089 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:07,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 01:17:07,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:07,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:07,125 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:17:07,125 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:17:07,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:07,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:07,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:07,161 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:07,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:07,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:07,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 01:17:07,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:07,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:07,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:07,237 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:07,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 01:17:07,247 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:17:07,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:07,449 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:17:07,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:07,452 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:07,452 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:07,453 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:07,453 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:07,453 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:07,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:07,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:07,453 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:07,453 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2021-10-13 01:17:07,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:07,453 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:07,455 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 01:17:07,468 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 01:17:07,479 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 01:17:07,515 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:07,515 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:07,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:07,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:07,517 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:07,525 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 01:17:07,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:07,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:07,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:07,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:07,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:07,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:07,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 01:17:07,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:07,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:07,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:07,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:07,598 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:07,604 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 01:17:07,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:07,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:07,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:07,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:07,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:07,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:07,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:07,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 01:17:07,628 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:07,632 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:17:07,633 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:17:07,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:07,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:07,635 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:07,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 01:17:07,643 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:07,643 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:17:07,643 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:07,643 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-13 01:17:07,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:07,689 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:17:07,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:07,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:07,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:07,741 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:07,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:07,754 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 01:17:07,754 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:17:07,755 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 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 01:17:07,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. 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 13 states and 20 transitions. Complement of second has 5 states. [2021-10-13 01:17:07,773 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 01:17:07,774 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 01:17:07,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-13 01:17:07,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 01:17:07,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:07,774 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:17:07,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:07,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:07,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:07,813 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:07,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:07,828 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 01:17:07,829 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:17:07,829 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 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 01:17:07,843 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. 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 13 states and 20 transitions. Complement of second has 5 states. [2021-10-13 01:17:07,844 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 01:17:07,844 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 01:17:07,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-13 01:17:07,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 01:17:07,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:07,845 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:17:07,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:07,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:07,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:07,883 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:07,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:07,893 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 01:17:07,894 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 1 loop predicates [2021-10-13 01:17:07,895 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 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 01:17:07,934 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. 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 15 states and 23 transitions. Complement of second has 4 states. [2021-10-13 01:17:07,935 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 01:17:07,935 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 01:17:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-13 01:17:07,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 01:17:07,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:07,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-13 01:17:07,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:07,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-13 01:17:07,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:07,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-10-13 01:17:07,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 01:17:07,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-10-13 01:17:07,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-13 01:17:07,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 01:17:07,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-13 01:17:07,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:07,948 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-13 01:17:07,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-13 01:17:07,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-10-13 01:17:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:17:07,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-10-13 01:17:07,960 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-13 01:17:07,960 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-13 01:17:07,961 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:17:07,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2021-10-13 01:17:07,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 01:17:07,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:07,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:07,963 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:17:07,963 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:07,963 INFO L791 eck$LassoCheckResult]: Stem: 260#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 261#L14-2 [2021-10-13 01:17:07,963 INFO L793 eck$LassoCheckResult]: Loop: 261#L14-2 assume !!(main_~x~0 < main_~y~0); 262#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 261#L14-2 [2021-10-13 01:17:07,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:07,965 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-13 01:17:07,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:07,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665552702] [2021-10-13 01:17:07,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:07,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:07,976 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:07,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:07,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:07,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2021-10-13 01:17:07,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:07,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159414068] [2021-10-13 01:17:08,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:08,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,014 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:08,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:08,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:08,031 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2021-10-13 01:17:08,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:08,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099211619] [2021-10-13 01:17:08,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:08,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,037 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,041 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:08,065 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:08,065 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:08,065 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:08,065 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:08,065 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:17:08,066 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,066 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:08,066 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:08,066 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2021-10-13 01:17:08,066 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:08,066 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:08,067 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 01:17:08,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:08,078 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 01:17:08,109 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:08,109 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:17:08,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:08,110 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:08,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:08,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:08,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 01:17:08,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:08,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:08,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:08,197 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:08,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:17:08,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:08,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-13 01:17:08,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 01:17:08,452 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:17:08,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:08,456 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:08,456 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:08,456 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:08,456 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:08,456 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:08,456 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,456 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:08,456 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:08,456 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2021-10-13 01:17:08,456 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:08,456 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:08,457 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 01:17:08,477 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 01:17:08,480 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 01:17:08,521 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:08,521 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:08,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:08,522 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:08,531 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 01:17:08,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 01:17:08,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:08,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:08,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:08,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:08,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:08,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:08,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:08,556 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:08,559 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:17:08,559 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:17:08,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:08,561 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:08,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 01:17:08,566 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:08,566 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:17:08,566 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:08,566 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2021-10-13 01:17:08,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:08,609 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:17:08,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:08,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:08,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:08,634 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:08,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:08,644 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 01:17:08,645 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:17:08,645 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 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 01:17:08,662 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. 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 11 states and 17 transitions. Complement of second has 5 states. [2021-10-13 01:17:08,662 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 01:17:08,663 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 01:17:08,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2021-10-13 01:17:08,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-13 01:17:08,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:08,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 01:17:08,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:08,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-13 01:17:08,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:08,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2021-10-13 01:17:08,667 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 01:17:08,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2021-10-13 01:17:08,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-13 01:17:08,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-13 01:17:08,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-10-13 01:17:08,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:08,670 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-10-13 01:17:08,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-10-13 01:17:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-10-13 01:17:08,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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 01:17:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2021-10-13 01:17:08,673 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-13 01:17:08,673 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-13 01:17:08,674 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 01:17:08,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2021-10-13 01:17:08,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 01:17:08,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:08,674 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:08,676 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-13 01:17:08,677 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:08,677 INFO L791 eck$LassoCheckResult]: Stem: 305#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 306#L14-2 assume !!(main_~x~0 < main_~y~0); 311#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 312#L14-2 assume !!(main_~x~0 < main_~y~0); 307#L14 [2021-10-13 01:17:08,677 INFO L793 eck$LassoCheckResult]: Loop: 307#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 308#L14-2 assume !!(main_~x~0 < main_~y~0); 307#L14 [2021-10-13 01:17:08,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:08,678 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2021-10-13 01:17:08,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:08,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945080290] [2021-10-13 01:17:08,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:08,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,690 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:08,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:08,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2021-10-13 01:17:08,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:08,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158705864] [2021-10-13 01:17:08,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:08,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,719 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,726 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:08,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:08,727 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 3 times [2021-10-13 01:17:08,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:08,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185903535] [2021-10-13 01:17:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:08,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,740 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:08,758 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:08,785 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:08,785 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:08,785 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:08,786 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:08,786 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:17:08,786 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,786 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:08,786 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:08,786 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration5_Loop [2021-10-13 01:17:08,786 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:08,787 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:08,788 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 01:17:08,791 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 01:17:08,795 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 01:17:08,859 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:08,860 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:17:08,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:08,862 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:08,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:08,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:08,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 01:17:08,893 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:17:08,893 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:17:08,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:08,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:08,932 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:08,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:08,938 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:08,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 01:17:08,957 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:17:08,957 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:17:08,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:08,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:08,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:08,996 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:08,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 01:17:08,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:08,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:09,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:09,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:09,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:09,031 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:09,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:17:09,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:09,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 01:17:09,286 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:17:09,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:09,289 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:09,289 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:09,289 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:09,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:09,289 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:09,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:09,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:09,289 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:09,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration5_Loop [2021-10-13 01:17:09,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:09,290 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:09,291 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 01:17:09,303 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 01:17:09,306 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 01:17:09,345 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:09,345 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:09,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:09,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:09,346 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:09,362 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 01:17:09,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:09,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:09,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:09,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:09,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:09,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:09,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 01:17:09,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:09,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:09,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:09,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:09,430 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:09,432 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 01:17:09,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 01:17:09,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:09,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:09,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:09,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:09,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:09,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:09,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:09,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:09,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:09,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:09,513 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:09,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:09,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:09,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:09,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:09,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:09,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:09,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:09,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:09,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 01:17:09,544 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:09,549 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:17:09,549 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:17:09,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:09,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:09,553 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:09,558 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:09,558 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:17:09,558 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:09,558 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-13 01:17:09,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 01:17:09,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-13 01:17:09,593 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:17:09,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:09,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:09,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:09,641 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:09,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:09,690 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 01:17:09,690 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 01:17:09,691 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 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 01:17:09,700 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. 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 13 states and 17 transitions. Complement of second has 5 states. [2021-10-13 01:17:09,700 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 01:17:09,701 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 01:17:09,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 01:17:09,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 01:17:09,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:09,701 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:17:09,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:09,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:09,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:09,730 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:09,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:09,755 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 01:17:09,755 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 01:17:09,756 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 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 01:17:09,772 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. 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 14 transitions. Complement of second has 5 states. [2021-10-13 01:17:09,773 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 01:17:09,773 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 01:17:09,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 01:17:09,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 01:17:09,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:09,774 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:17:09,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:09,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:09,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:09,801 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:09,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:09,824 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 01:17:09,825 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 01:17:09,825 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 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 01:17:09,834 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. 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 16 states and 20 transitions. Complement of second has 4 states. [2021-10-13 01:17:09,834 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 01:17:09,835 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 01:17:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-13 01:17:09,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 01:17:09,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:09,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-13 01:17:09,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:09,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-13 01:17:09,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:09,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-10-13 01:17:09,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-13 01:17:09,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2021-10-13 01:17:09,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-13 01:17:09,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-13 01:17:09,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-13 01:17:09,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:09,839 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-13 01:17:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-13 01:17:09,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2021-10-13 01:17:09,840 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 01:17:09,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-13 01:17:09,841 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 01:17:09,841 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 01:17:09,841 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 01:17:09,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-13 01:17:09,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 01:17:09,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:09,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:09,842 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-13 01:17:09,842 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-13 01:17:09,842 INFO L791 eck$LassoCheckResult]: Stem: 438#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 439#L14-2 assume !!(main_~x~0 < main_~y~0); 443#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 444#L14-2 assume !!(main_~x~0 < main_~y~0); 440#L14 [2021-10-13 01:17:09,843 INFO L793 eck$LassoCheckResult]: Loop: 440#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 441#L14-2 assume !!(main_~x~0 < main_~y~0); 443#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 444#L14-2 assume !!(main_~x~0 < main_~y~0); 440#L14 [2021-10-13 01:17:09,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:09,843 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 3 times [2021-10-13 01:17:09,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:09,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447271640] [2021-10-13 01:17:09,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:09,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:09,849 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:09,853 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:09,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:09,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2021-10-13 01:17:09,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:09,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057883752] [2021-10-13 01:17:09,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:09,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:09,863 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:09,867 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:09,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:09,867 INFO L82 PathProgramCache]: Analyzing trace with hash 602329151, now seen corresponding path program 4 times [2021-10-13 01:17:09,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:09,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582779946] [2021-10-13 01:17:09,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:09,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:09,875 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:09,894 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:09,940 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:09,941 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:09,941 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:09,941 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:09,941 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:17:09,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:09,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:09,942 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:09,942 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration6_Loop [2021-10-13 01:17:09,942 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:09,942 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:09,943 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 01:17:09,947 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 01:17:09,950 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 01:17:10,017 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:10,018 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:17:10,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:10,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:10,019 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:10,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:10,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:10,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 01:17:10,039 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:17:10,039 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:17:10,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:10,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:10,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:10,076 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:10,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 01:17:10,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:10,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:10,091 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:17:10,091 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:17:10,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:10,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:10,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:10,113 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:10,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 01:17:10,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:17:10,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:10,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-13 01:17:10,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:10,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:10,144 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:10,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 01:17:10,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:17:10,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:17:10,432 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:17:10,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:10,435 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:10,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:10,435 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:10,435 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:10,435 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:10,435 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:10,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:10,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:10,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration6_Loop [2021-10-13 01:17:10,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:10,436 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:10,437 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 01:17:10,454 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 01:17:10,464 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 01:17:10,516 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:10,516 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:10,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:10,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:10,517 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:10,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 01:17:10,531 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 01:17:10,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:10,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:10,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:10,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:10,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:10,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:10,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:10,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-13 01:17:10,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:10,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:10,585 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:10,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 01:17:10,587 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 01:17:10,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:10,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:10,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:10,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:10,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:10,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:10,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:10,599 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:10,603 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:17:10,603 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:17:10,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:10,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:10,605 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:10,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 01:17:10,606 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:10,606 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:17:10,606 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:10,606 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:17:10,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:10,628 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:17:10,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:10,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:10,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:10,666 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:17:10,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:10,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:10,768 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:17:10,768 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:17:10,791 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 29 transitions. Complement of second has 6 states. [2021-10-13 01:17:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:17:10,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:17:10,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-13 01:17:10,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-13 01:17:10,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:10,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-13 01:17:10,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:10,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 8 letters. [2021-10-13 01:17:10,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:10,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2021-10-13 01:17:10,794 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:17:10,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2021-10-13 01:17:10,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:17:10,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:17:10,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:17:10,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:10,795 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:17:10,795 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:17:10,795 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:17:10,795 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 01:17:10,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:17:10,795 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:17:10,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:17:10,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:17:10 BoogieIcfgContainer [2021-10-13 01:17:10,802 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:17:10,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:17:10,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:17:10,803 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:17:10,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:04" (3/4) ... [2021-10-13 01:17:10,806 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:17:10,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:17:10,808 INFO L168 Benchmark]: Toolchain (without parser) took 6895.06 ms. Allocated memory was 119.5 MB in the beginning and 161.5 MB in the end (delta: 41.9 MB). Free memory was 92.0 MB in the beginning and 126.8 MB in the end (delta: -34.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:17:10,808 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 119.5 MB. Free memory was 73.0 MB in the beginning and 72.9 MB in the end (delta: 68.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:17:10,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.99 ms. Allocated memory is still 119.5 MB. Free memory was 91.8 MB in the beginning and 95.1 MB in the end (delta: -3.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:17:10,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.04 ms. Allocated memory is still 119.5 MB. Free memory was 95.1 MB in the beginning and 93.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:17:10,809 INFO L168 Benchmark]: Boogie Preprocessor took 19.47 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 92.8 MB in the end (delta: 847.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:17:10,810 INFO L168 Benchmark]: RCFGBuilder took 259.61 ms. Allocated memory is still 119.5 MB. Free memory was 92.8 MB in the beginning and 85.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:17:10,810 INFO L168 Benchmark]: BuchiAutomizer took 6316.87 ms. Allocated memory was 119.5 MB in the beginning and 161.5 MB in the end (delta: 41.9 MB). Free memory was 85.1 MB in the beginning and 126.8 MB in the end (delta: -41.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:17:10,811 INFO L168 Benchmark]: Witness Printer took 4.14 ms. Allocated memory is still 161.5 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:17:10,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: [2021-10-13 01:17:10,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 119.5 MB. Free memory was 73.0 MB in the beginning and 72.9 MB in the end (delta: 68.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.99 ms. Allocated memory is still 119.5 MB. Free memory was 91.8 MB in the beginning and 95.1 MB in the end (delta: -3.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.04 ms. Allocated memory is still 119.5 MB. Free memory was 95.1 MB in the beginning and 93.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.47 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 92.8 MB in the end (delta: 847.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 259.61 ms. Allocated memory is still 119.5 MB. Free memory was 92.8 MB in the beginning and 85.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6316.87 ms. Allocated memory was 119.5 MB in the beginning and 161.5 MB in the end (delta: 41.9 MB). Free memory was 85.1 MB in the beginning and 126.8 MB in the end (delta: -41.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.14 ms. Allocated memory is still 161.5 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function z + -1 * x and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x and consists of 3 locations. One deterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One deterministic module has affine ranking function y + -1 * z and consists of 4 locations. One nondeterministic module has affine ranking function z + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.2s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 30.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 31 SDtfs, 35 SDslu, 3 SDs, 0 SdLazy, 64 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax186 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp97 dnf100 smp100 tf110 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 66ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 01:17:10,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:11,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a5b410a-6cdf-49da-87e3-91112c096429/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...