./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaA1.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_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/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_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/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_45017648-d18d-4499-bf5e-d498f7dc717e/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 1a5ad591ce856c2d846b6a372eee9518c32c9e01 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:22:58,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:22:58,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:22:58,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:22:58,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:22:58,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:22:58,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:22:58,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:22:58,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:22:58,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:22:58,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:22:58,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:22:58,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:22:58,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:22:58,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:22:58,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:22:58,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:22:58,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:22:58,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:22:58,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:22:58,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:22:58,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:22:58,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:22:58,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:22:58,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:22:58,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:22:58,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:22:58,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:22:58,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:22:58,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:22:58,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:22:58,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:22:58,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:22:58,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:22:58,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:22:58,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:22:58,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:22:58,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:22:58,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:22:58,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:22:58,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:22:58,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 01:22:58,821 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:22:58,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:22:58,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:22:58,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:22:58,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:22:58,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:22:58,823 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:22:58,823 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:22:58,824 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:22:58,824 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:22:58,824 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:22:58,824 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:22:58,824 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:22:58,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:22:58,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:22:58,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:22:58,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:22:58,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:22:58,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:22:58,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:22:58,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:22:58,826 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:22:58,826 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:22:58,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:22:58,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:22:58,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:22:58,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:22:58,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:22:58,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:22:58,836 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:22:58,836 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_45017648-d18d-4499-bf5e-d498f7dc717e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a5ad591ce856c2d846b6a372eee9518c32c9e01 [2021-10-13 01:22:59,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:22:59,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:22:59,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:22:59,100 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:22:59,101 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:22:59,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-restricted-15/PastaA1.c [2021-10-13 01:22:59,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/data/ebf5b7b58/e60fc8eba33441478fca35d7e621a47b/FLAGbb590a43e [2021-10-13 01:22:59,579 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:22:59,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/sv-benchmarks/c/termination-restricted-15/PastaA1.c [2021-10-13 01:22:59,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/data/ebf5b7b58/e60fc8eba33441478fca35d7e621a47b/FLAGbb590a43e [2021-10-13 01:22:59,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/data/ebf5b7b58/e60fc8eba33441478fca35d7e621a47b [2021-10-13 01:22:59,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:22:59,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:22:59,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:22:59,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:22:59,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:22:59,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:22:59" (1/1) ... [2021-10-13 01:22:59,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3691a88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:22:59, skipping insertion in model container [2021-10-13 01:22:59,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:22:59" (1/1) ... [2021-10-13 01:23:00,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:23:00,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:23:00,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:23:00,173 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:23:00,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:23:00,208 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:23:00,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00 WrapperNode [2021-10-13 01:23:00,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:23:00,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:23:00,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:23:00,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:23:00,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:23:00,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:23:00,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:23:00,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:23:00,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:23:00,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:23:00,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:23:00,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:23:00,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (1/1) ... [2021-10-13 01:23:00,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:00,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:00,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:00,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:23:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:23:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:23:00,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:23:00,497 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 01:23:00,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:00 BoogieIcfgContainer [2021-10-13 01:23:00,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:23:00,500 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:23:00,501 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:23:00,504 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:23:00,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:23:00,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:22:59" (1/3) ... [2021-10-13 01:23:00,506 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ef9dda3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:23:00, skipping insertion in model container [2021-10-13 01:23:00,507 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:23:00,507 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:00" (2/3) ... [2021-10-13 01:23:00,507 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ef9dda3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:23:00, skipping insertion in model container [2021-10-13 01:23:00,507 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:23:00,507 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:00" (3/3) ... [2021-10-13 01:23:00,509 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaA1.c [2021-10-13 01:23:00,571 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:23:00,571 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:23:00,571 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:23:00,571 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:23:00,571 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:23:00,571 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:23:00,571 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:23:00,572 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:23:00,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:23:00,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:23:00,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:23:00,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:23:00,603 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:23:00,604 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:23:00,604 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:23:00,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:23:00,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:23:00,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:23:00,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:23:00,605 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:23:00,606 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:23:00,610 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L10-2true [2021-10-13 01:23:00,611 INFO L793 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~x~0 > 0);main_~y~0 := 0; 3#L12-2true assume !(main_~y~0 < main_~x~0); 8#L12-3true main_~x~0 := main_~x~0 - 1; 5#L10-2true [2021-10-13 01:23:00,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:00,615 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-13 01:23:00,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:00,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921420202] [2021-10-13 01:23:00,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:00,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:00,686 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:23:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:00,702 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:23:00,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:00,705 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-10-13 01:23:00,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:00,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239101247] [2021-10-13 01:23:00,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:00,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:00,767 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 01:23:00,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:23:00,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239101247] [2021-10-13 01:23:00,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239101247] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:23:00,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:23:00,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:23:00,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982384264] [2021-10-13 01:23:00,774 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:23:00,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:23:00,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:23:00,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:23:00,791 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:23:00,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:23:00,808 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-13 01:23:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:23:00,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-13 01:23:00,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 01:23:00,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2021-10-13 01:23:00,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-13 01:23:00,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-13 01:23:00,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2021-10-13 01:23:00,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:23:00,817 INFO L681 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-13 01:23:00,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2021-10-13 01:23:00,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-10-13 01:23:00,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:23:00,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2021-10-13 01:23:00,841 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-13 01:23:00,841 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-13 01:23:00,841 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:23:00,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2021-10-13 01:23:00,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 01:23:00,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:23:00,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:23:00,843 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:23:00,843 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:23:00,843 INFO L791 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 28#L10-2 [2021-10-13 01:23:00,844 INFO L793 eck$LassoCheckResult]: Loop: 28#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 26#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 27#L12-2 assume !(main_~y~0 < main_~x~0); 30#L12-3 main_~x~0 := main_~x~0 - 1; 28#L10-2 [2021-10-13 01:23:00,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:00,844 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-13 01:23:00,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:00,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815879691] [2021-10-13 01:23:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:00,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:00,850 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:23:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:00,853 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:23:00,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:00,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2021-10-13 01:23:00,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:00,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299180945] [2021-10-13 01:23:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:00,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:00,864 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:23:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:00,870 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:23:00,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:00,872 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2021-10-13 01:23:00,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:00,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860201901] [2021-10-13 01:23:00,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:00,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:00,880 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:23:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:00,888 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:23:01,019 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:23:01,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:23:01,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:23:01,020 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:23:01,020 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:23:01,020 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:23:01,020 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:23:01,021 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2021-10-13 01:23:01,021 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:23:01,021 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:23:01,036 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 01:23:01,043 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 01:23:01,047 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 01:23:01,140 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:23:01,141 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:23:01,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:01,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:01,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:23:01,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:23:01,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:01,198 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:23:01,199 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 01:23:01,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:01,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:01,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:01,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:23:01,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:23:01,224 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:01,240 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:23:01,240 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 01:23:01,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:01,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:01,278 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:01,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:23:01,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:23:01,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:01,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:01,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:01,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:01,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:23:01,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:23:01,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:01,407 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:23:01,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:01,410 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:23:01,410 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:23:01,410 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:23:01,410 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:23:01,410 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:23:01,411 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,411 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:23:01,411 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:23:01,411 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2021-10-13 01:23:01,411 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:23:01,411 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:23:01,415 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 01:23:01,422 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 01:23:01,426 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 01:23:01,510 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:23:01,515 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:23:01,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:01,520 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:01,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:23:01,524 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 01:23:01,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:23:01,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:23:01,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:23:01,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:23:01,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:23:01,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:23:01,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:23:01,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:01,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:01,576 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:01,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:23:01,577 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 01:23:01,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:23:01,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:23:01,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:23:01,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:23:01,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:23:01,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:23:01,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:23:01,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:01,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:01,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:01,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:23:01,628 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 01:23:01,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:23:01,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:23:01,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:23:01,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:23:01,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:23:01,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:23:01,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:23:01,662 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:23:01,687 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:23:01,687 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:23:01,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:01,707 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:01,712 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:23:01,712 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:23:01,713 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:23:01,713 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 01:23:01,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:23:01,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:01,743 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:23:01,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:01,773 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:23:01,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:01,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:23:01,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 01:23:01,878 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 01:23:01,879 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 01:23:01,908 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 9 states and 12 transitions. Complement of second has 4 states. [2021-10-13 01:23:01,909 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 01:23:01,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 01:23:01,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 01:23:01,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-13 01:23:01,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:01,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-13 01:23:01,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:01,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 8 letters. [2021-10-13 01:23:01,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:01,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2021-10-13 01:23:01,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:23:01,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2021-10-13 01:23:01,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-13 01:23:01,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-13 01:23:01,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-13 01:23:01,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:23:01,915 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-13 01:23:01,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-13 01:23:01,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-13 01:23:01,916 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 01:23:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-13 01:23:01,916 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 01:23:01,916 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 01:23:01,916 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:23:01,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-13 01:23:01,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:23:01,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:23:01,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:23:01,918 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 01:23:01,918 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:23:01,918 INFO L791 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 78#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 75#L12-2 [2021-10-13 01:23:01,918 INFO L793 eck$LassoCheckResult]: Loop: 75#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 75#L12-2 [2021-10-13 01:23:01,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:01,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-13 01:23:01,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:01,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637593848] [2021-10-13 01:23:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:01,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:01,924 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:23:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:01,927 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:23:01,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:01,928 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-10-13 01:23:01,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:01,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360745811] [2021-10-13 01:23:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:01,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:01,933 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:23:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:01,937 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:23:01,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:01,937 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-10-13 01:23:01,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:01,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425987427] [2021-10-13 01:23:01,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:01,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:01,943 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:23:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:01,948 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:23:01,961 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:23:01,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:23:01,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:23:01,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:23:01,961 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:23:01,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:01,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:23:01,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:23:01,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2021-10-13 01:23:01,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:23:01,962 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:23:01,963 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 01:23:01,966 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 01:23:01,968 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 01:23:02,018 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:23:02,018 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:23:02,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:02,019 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:02,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:23:02,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:23:02,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:02,042 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:23:02,042 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 01:23:02,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:02,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:02,065 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:02,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:23:02,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:23:02,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:02,082 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:23:02,082 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:23:02,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-10-13 01:23:02,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:02,105 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:02,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:23:02,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:23:02,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:02,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:02,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:02,193 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:02,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:23:02,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:02,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 01:23:02,356 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:23:02,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:02,362 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:23:02,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:23:02,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:23:02,362 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:23:02,362 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:23:02,362 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,362 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:23:02,362 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:23:02,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2021-10-13 01:23:02,362 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:23:02,363 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:23:02,364 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 01:23:02,380 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 01:23:02,383 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 01:23:02,421 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:23:02,421 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:23:02,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:02,431 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:02,439 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 01:23:02,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:23:02,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:23:02,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:23:02,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:23:02,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:23:02,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:23:02,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 01:23:02,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:23:02,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:02,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:02,509 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:02,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 01:23:02,515 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 01:23:02,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:23:02,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:23:02,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:23:02,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:23:02,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:23:02,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:23:02,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:23:02,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:02,587 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:02,588 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:02,595 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 01:23:02,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:23:02,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:23:02,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:23:02,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:23:02,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:23:02,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:23:02,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:23:02,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 01:23:02,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:23:02,630 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 01:23:02,631 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:23:02,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:02,635 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:02,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 01:23:02,639 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:23:02,639 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:23:02,639 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:23:02,639 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:23:02,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:02,658 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:23:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:02,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:23:02,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:02,699 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:23:02,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:02,700 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 01:23:02,700 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 01:23:02,701 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 1.5) 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 01:23:02,719 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 1.5) 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 15 states and 20 transitions. Complement of second has 5 states. [2021-10-13 01:23:02,720 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 01:23:02,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) 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 01:23:02,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 01:23:02,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-13 01:23:02,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:02,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-13 01:23:02,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:02,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 01:23:02,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:02,722 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2021-10-13 01:23:02,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:23:02,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2021-10-13 01:23:02,726 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-13 01:23:02,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-13 01:23:02,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2021-10-13 01:23:02,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:23:02,726 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-13 01:23:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2021-10-13 01:23:02,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2021-10-13 01:23:02,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:23:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-13 01:23:02,728 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-13 01:23:02,728 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-13 01:23:02,728 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:23:02,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-13 01:23:02,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:23:02,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:23:02,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:23:02,730 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-10-13 01:23:02,730 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:23:02,732 INFO L791 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 129#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 127#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 128#L12-2 assume !(main_~y~0 < main_~x~0); 132#L12-3 main_~x~0 := main_~x~0 - 1; 130#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 126#L12-2 [2021-10-13 01:23:02,732 INFO L793 eck$LassoCheckResult]: Loop: 126#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 126#L12-2 [2021-10-13 01:23:02,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:02,732 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2021-10-13 01:23:02,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:02,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772098775] [2021-10-13 01:23:02,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:02,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:23:02,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:23:02,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772098775] [2021-10-13 01:23:02,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772098775] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:23:02,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710764207] [2021-10-13 01:23:02,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 01:23:02,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:23:02,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:02,794 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:23:02,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-13 01:23:02,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 01:23:02,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:23:02,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 01:23:02,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:23:02,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710764207] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:23:02,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:23:02,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-13 01:23:02,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937686938] [2021-10-13 01:23:02,882 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:23:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:02,882 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2021-10-13 01:23:02,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:23:02,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291098039] [2021-10-13 01:23:02,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:23:02,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:23:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:02,927 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:23:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:23:02,932 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:23:02,950 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:23:02,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:23:02,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:23:02,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:23:02,951 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:23:02,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:02,951 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:23:02,952 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:23:02,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2021-10-13 01:23:02,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:23:02,952 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:23:02,953 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 01:23:02,956 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 01:23:02,958 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 01:23:02,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:03,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:03,044 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:23:03,044 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:23:03,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:03,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:03,048 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:03,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 01:23:03,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:23:03,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:03,088 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:23:03,088 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 01:23:03,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:03,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:03,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:03,114 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:03,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 01:23:03,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:23:03,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:03,140 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:23:03,140 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:23:03,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:03,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:03,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:03,166 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:03,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 01:23:03,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:23:03,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:03,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:03,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:03,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:03,224 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:03,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:23:03,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:23:03,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 01:23:03,364 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:23:03,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:03,367 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:23:03,367 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:23:03,367 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:23:03,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:23:03,368 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:23:03,368 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:03,368 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:23:03,368 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:23:03,368 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2021-10-13 01:23:03,368 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:23:03,368 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:23:03,369 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 01:23:03,382 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 01:23:03,386 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 01:23:03,423 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:23:03,423 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:23:03,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:03,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:03,424 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:03,433 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 01:23:03,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:23:03,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:23:03,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:23:03,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:23:03,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:23:03,445 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:23:03,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 01:23:03,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:23:03,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:03,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:03,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:03,493 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:03,495 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 01:23:03,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:23:03,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:23:03,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:23:03,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:23:03,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:23:03,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:23:03,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 01:23:03,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:23:03,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:03,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:03,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:03,552 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:03,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 01:23:03,554 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 01:23:03,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:23:03,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:23:03,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:23:03,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:23:03,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:23:03,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:23:03,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:23:03,567 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:23:03,569 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:23:03,570 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:23:03,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:23:03,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:23:03,571 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:23:03,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 01:23:03,572 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:23:03,572 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:23:03,572 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:23:03,572 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 01:23:03,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:03,608 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:23:03,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:03,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:23:03,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:03,648 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:23:03,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:03,648 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 01:23:03,649 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 01:23:03,649 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:23:03,661 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 17 transitions. Complement of second has 5 states. [2021-10-13 01:23:03,661 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 01:23:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:23:03,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 01:23:03,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-13 01:23:03,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:03,663 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:23:03,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:03,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:23:03,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:03,695 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:23:03,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:03,696 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 01:23:03,697 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 01:23:03,697 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:23:03,706 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 17 transitions. Complement of second has 5 states. [2021-10-13 01:23:03,707 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 01:23:03,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:23:03,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 01:23:03,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-13 01:23:03,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:03,708 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:23:03,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:23:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:03,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:23:03,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:23:03,750 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:23:03,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:23:03,751 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 01:23:03,751 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 01:23:03,752 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:23:03,768 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 12 transitions. Complement of second has 4 states. [2021-10-13 01:23:03,768 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 01:23:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:23:03,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-10-13 01:23:03,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-13 01:23:03,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:03,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-13 01:23:03,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:03,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-13 01:23:03,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:23:03,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2021-10-13 01:23:03,773 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:23:03,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2021-10-13 01:23:03,773 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:23:03,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:23:03,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:23:03,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:23:03,774 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:23:03,774 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:23:03,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:23:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:23:03,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:23:03,775 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 6 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 01:23:03,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:23:03,775 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-13 01:23:03,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 01:23:03,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-13 01:23:03,776 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:23:03,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:23:03,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:23:03,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:23:03,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:23:03,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:23:03,777 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:23:03,777 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:23:03,777 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:23:03,777 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 01:23:03,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:23:03,777 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:23:03,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:23:03,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:23:03 BoogieIcfgContainer [2021-10-13 01:23:03,784 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:23:03,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:23:03,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:23:03,785 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:23:03,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:00" (3/4) ... [2021-10-13 01:23:03,788 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:23:03,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:23:03,790 INFO L168 Benchmark]: Toolchain (without parser) took 3799.38 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 74.5 MB in the beginning and 86.5 MB in the end (delta: -11.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:03,791 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 111.1 MB. Free memory was 91.1 MB in the beginning and 91.0 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:03,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.59 ms. Allocated memory is still 111.1 MB. Free memory was 74.3 MB in the beginning and 88.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:03,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.28 ms. Allocated memory is still 111.1 MB. Free memory was 88.6 MB in the beginning and 87.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:03,800 INFO L168 Benchmark]: Boogie Preprocessor took 20.37 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 86.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:03,800 INFO L168 Benchmark]: RCFGBuilder took 234.19 ms. Allocated memory is still 111.1 MB. Free memory was 86.3 MB in the beginning and 78.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:03,801 INFO L168 Benchmark]: BuchiAutomizer took 3283.77 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 78.6 MB in the beginning and 87.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:23:03,802 INFO L168 Benchmark]: Witness Printer took 3.95 ms. Allocated memory is still 138.4 MB. Free memory was 87.2 MB in the beginning and 86.5 MB in the end (delta: 689.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:23:03,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 111.1 MB. Free memory was 91.1 MB in the beginning and 91.0 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 215.59 ms. Allocated memory is still 111.1 MB. Free memory was 74.3 MB in the beginning and 88.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.28 ms. Allocated memory is still 111.1 MB. Free memory was 88.6 MB in the beginning and 87.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.37 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 86.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 234.19 ms. Allocated memory is still 111.1 MB. Free memory was 86.3 MB in the beginning and 78.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3283.77 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 78.6 MB in the beginning and 87.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.95 ms. Allocated memory is still 138.4 MB. Free memory was 87.2 MB in the beginning and 86.5 MB in the end (delta: 689.1 kB). 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function x + -1 * y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 14.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 20 SDtfs, 17 SDslu, 3 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.8ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax204 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp95 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 01:23:03,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:04,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-13 01:23:04,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45017648-d18d-4499-bf5e-d498f7dc717e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...