./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Log.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Log.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G --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 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:32:08,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:32:08,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:32:08,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:32:08,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:32:08,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:32:08,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:32:08,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:32:08,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:32:08,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:32:08,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:32:08,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:32:08,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:32:08,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:32:08,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:32:08,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:32:08,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:32:08,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:32:08,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:32:08,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:32:08,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:32:08,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:32:08,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:32:08,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:32:08,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:32:08,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:32:08,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:32:08,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:32:08,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:32:08,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:32:08,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:32:08,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:32:08,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:32:08,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:32:08,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:32:08,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:32:08,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:32:08,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:32:08,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:32:08,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:32:08,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:32:08,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-23 13:32:08,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:32:08,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:32:08,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:32:08,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:32:08,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:32:08,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:32:08,233 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:32:08,233 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 13:32:08,234 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 13:32:08,234 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 13:32:08,235 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 13:32:08,235 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 13:32:08,235 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 13:32:08,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:32:08,236 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:32:08,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:32:08,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:32:08,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 13:32:08,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 13:32:08,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 13:32:08,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:32:08,237 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 13:32:08,237 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:32:08,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 13:32:08,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:32:08,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:32:08,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:32:08,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:32:08,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:32:08,241 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 13:32:08,241 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_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 [2021-11-23 13:32:08,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:32:08,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:32:08,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:32:08,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:32:08,537 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:32:08,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/termination-restricted-15/Log.c [2021-11-23 13:32:08,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/data/9a70ba6cf/7184c5e74d624165ab720d977e31a1e7/FLAG5e0a43bb0 [2021-11-23 13:32:09,044 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:32:09,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/sv-benchmarks/c/termination-restricted-15/Log.c [2021-11-23 13:32:09,053 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/data/9a70ba6cf/7184c5e74d624165ab720d977e31a1e7/FLAG5e0a43bb0 [2021-11-23 13:32:09,449 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/data/9a70ba6cf/7184c5e74d624165ab720d977e31a1e7 [2021-11-23 13:32:09,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:32:09,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:32:09,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:32:09,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:32:09,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:32:09,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0740e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09, skipping insertion in model container [2021-11-23 13:32:09,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:32:09,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:32:09,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:32:09,699 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:32:09,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:32:09,732 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:32:09,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09 WrapperNode [2021-11-23 13:32:09,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:32:09,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:32:09,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:32:09,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:32:09,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,772 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2021-11-23 13:32:09,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:32:09,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:32:09,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:32:09,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:32:09,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:32:09,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:32:09,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:32:09,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:32:09,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (1/1) ... [2021-11-23 13:32:09,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:09,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:09,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:09,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 13:32:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:32:09,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:32:09,969 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:32:09,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:32:10,071 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:32:10,080 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:32:10,080 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 13:32:10,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:32:10 BoogieIcfgContainer [2021-11-23 13:32:10,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:32:10,084 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 13:32:10,084 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 13:32:10,088 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 13:32:10,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:32:10,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:32:09" (1/3) ... [2021-11-23 13:32:10,090 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c8c892e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:32:10, skipping insertion in model container [2021-11-23 13:32:10,091 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:32:10,091 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:09" (2/3) ... [2021-11-23 13:32:10,092 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c8c892e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:32:10, skipping insertion in model container [2021-11-23 13:32:10,092 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:32:10,093 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:32:10" (3/3) ... [2021-11-23 13:32:10,095 INFO L388 chiAutomizerObserver]: Analyzing ICFG Log.c [2021-11-23 13:32:10,159 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 13:32:10,160 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 13:32:10,160 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 13:32:10,160 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 13:32:10,160 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 13:32:10,160 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 13:32:10,160 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 13:32:10,161 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 13:32:10,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:10,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:32:10,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:32:10,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:32:10,206 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:32:10,207 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-23 13:32:10,207 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 13:32:10,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:10,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:32:10,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:32:10,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:32:10,209 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:32:10,210 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-23 13:32:10,216 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 7#L13-2true [2021-11-23 13:32:10,217 INFO L793 eck$LassoCheckResult]: Loop: 7#L13-2true assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 4#L17-2true assume !(main_~xtmp~0#1 > 1); 10#L17-3true main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 7#L13-2true [2021-11-23 13:32:10,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:10,227 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-23 13:32:10,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:10,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934852820] [2021-11-23 13:32:10,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:10,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:10,303 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:32:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:10,321 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:32:10,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-11-23 13:32:10,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:10,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001298196] [2021-11-23 13:32:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:10,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:32:10,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:32:10,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001298196] [2021-11-23 13:32:10,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001298196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:32:10,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:32:10,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:32:10,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600461675] [2021-11-23 13:32:10,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:32:10,397 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 13:32:10,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:32:10,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:32:10,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:32:10,433 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-11-23 13:32:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:32:10,449 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-11-23 13:32:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:32:10,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-11-23 13:32:10,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-23 13:32:10,459 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2021-11-23 13:32:10,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-23 13:32:10,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-23 13:32:10,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2021-11-23 13:32:10,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:32:10,462 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-11-23 13:32:10,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2021-11-23 13:32:10,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-11-23 13:32:10,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 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) [2021-11-23 13:32:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-11-23 13:32:10,492 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-11-23 13:32:10,493 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-11-23 13:32:10,493 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 13:32:10,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-11-23 13:32:10,493 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-23 13:32:10,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:32:10,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:32:10,494 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:32:10,494 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-23 13:32:10,495 INFO L791 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 31#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 32#L13-2 [2021-11-23 13:32:10,495 INFO L793 eck$LassoCheckResult]: Loop: 32#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 28#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 29#L17-2 assume !(main_~xtmp~0#1 > 1); 33#L17-3 main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 32#L13-2 [2021-11-23 13:32:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-11-23 13:32:10,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:10,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929831686] [2021-11-23 13:32:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:10,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:10,502 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:32:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:10,506 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:32:10,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:10,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2021-11-23 13:32:10,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:10,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389471103] [2021-11-23 13:32:10,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:10,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:10,520 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:32:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:10,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:32:10,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:10,531 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2021-11-23 13:32:10,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:10,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226968212] [2021-11-23 13:32:10,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:10,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:10,542 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:32:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:10,553 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:32:10,705 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:32:10,705 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:32:10,706 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:32:10,706 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:32:10,706 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 13:32:10,706 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:10,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:32:10,706 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:32:10,707 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2021-11-23 13:32:10,707 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:32:10,708 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:32:10,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:10,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:10,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:10,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:10,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:10,902 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:32:10,905 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 13:32:10,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:10,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:10,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:10,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-23 13:32:10,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:10,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:10,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-23 13:32:10,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:10,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:10,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:10,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-23 13:32:10,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:32:10,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:11,013 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:32:11,039 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0#1=0} Honda state: {ULTIMATE.start_main_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0#1=-6}, {ULTIMATE.start_main_~res~0#1=7}, {ULTIMATE.start_main_~res~0#1=0}] Lambdas: [1, 1, 13] Nus: [0, 0] [2021-11-23 13:32:11,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:11,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:11,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:11,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:11,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:11,101 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:11,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-23 13:32:11,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:32:11,132 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: [] [2021-11-23 13:32:11,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:11,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:11,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:11,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:11,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:11,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:11,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-23 13:32:11,194 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:32:11,195 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: [] [2021-11-23 13:32:11,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:11,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:11,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:11,231 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:11,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-23 13:32:11,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:11,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:11,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:11,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:11,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:11,277 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:11,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-23 13:32:11,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:32:11,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:13,160 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 13:32:13,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-23 13:32:13,164 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:32:13,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:32:13,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:32:13,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:32:13,165 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:32:13,165 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:13,165 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:32:13,165 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:32:13,165 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2021-11-23 13:32:13,165 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:32:13,165 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:32:13,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:13,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:13,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:13,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:13,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:13,261 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:32:13,266 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:32:13,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:13,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:13,272 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:13,274 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 [2021-11-23 13:32:13,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:13,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:32:13,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:13,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:13,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:13,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:32:13,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:32:13,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-23 13:32:13,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:32:13,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:13,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:13,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:13,331 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:13,340 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 [2021-11-23 13:32:13,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-23 13:32:13,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:13,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:13,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:13,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:13,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:32:13,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:32:13,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:32:13,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:13,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:13,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:13,397 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:13,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-23 13:32:13,402 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 [2021-11-23 13:32:13,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:13,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:13,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:13,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:13,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:32:13,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:32:13,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:32:13,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:13,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:13,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:13,461 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:13,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-23 13:32:13,463 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 [2021-11-23 13:32:13,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:13,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:32:13,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:13,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:13,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:13,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:32:13,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:32:13,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:32:13,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:13,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:13,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:13,527 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:13,536 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 [2021-11-23 13:32:13,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:13,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:32:13,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:13,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:13,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:13,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:32:13,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:32:13,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-23 13:32:13,564 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:32:13,568 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-23 13:32:13,568 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-23 13:32:13,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:13,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:13,576 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:13,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-23 13:32:13,580 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:32:13,584 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 13:32:13,584 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:32:13,584 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-11-23 13:32:13,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:13,609 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 13:32:13,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:13,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:32:13,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:13,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:32:13,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:32:13,782 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-23 13:32:13,783 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:13,841 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 6 states. [2021-11-23 13:32:13,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-23 13:32:13,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-11-23 13:32:13,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-23 13:32:13,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:13,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-23 13:32:13,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:13,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2021-11-23 13:32:13,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:13,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2021-11-23 13:32:13,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 13:32:13,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2021-11-23 13:32:13,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-11-23 13:32:13,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-23 13:32:13,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-11-23 13:32:13,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 13:32:13,849 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-11-23 13:32:13,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-11-23 13:32:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-11-23 13:32:13,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) 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) [2021-11-23 13:32:13,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-11-23 13:32:13,851 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-23 13:32:13,851 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-23 13:32:13,852 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 13:32:13,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-11-23 13:32:13,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 13:32:13,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:32:13,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:32:13,853 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-23 13:32:13,853 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-23 13:32:13,854 INFO L791 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 92#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 93#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 88#L17-2 [2021-11-23 13:32:13,854 INFO L793 eck$LassoCheckResult]: Loop: 88#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 88#L17-2 [2021-11-23 13:32:13,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:13,854 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-23 13:32:13,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:13,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250543732] [2021-11-23 13:32:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:13,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:13,861 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:32:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:13,865 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:32:13,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:13,866 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-11-23 13:32:13,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:13,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056034089] [2021-11-23 13:32:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:13,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:13,871 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:32:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:13,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:32:13,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:13,876 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-11-23 13:32:13,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:13,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834984397] [2021-11-23 13:32:13,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:13,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:13,884 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:32:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:13,905 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:32:13,930 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:32:13,930 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:32:13,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:32:13,933 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:32:13,933 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 13:32:13,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:13,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:32:13,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:32:13,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2021-11-23 13:32:13,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:32:13,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:32:13,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:13,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:13,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:13,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:14,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:32:14,009 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 13:32:14,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:14,012 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:14,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:14,025 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:14,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-23 13:32:14,051 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:32:14,051 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: [] [2021-11-23 13:32:14,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:14,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:14,097 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:14,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:14,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:14,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-23 13:32:14,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:14,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:14,183 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:14,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:32:14,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:14,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-23 13:32:14,268 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 13:32:14,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:14,277 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:32:14,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:32:14,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:32:14,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:32:14,277 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:32:14,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:32:14,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:32:14,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2021-11-23 13:32:14,278 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:32:14,278 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:32:14,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:14,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:14,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:14,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:14,373 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:32:14,373 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:32:14,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:14,376 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:14,382 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 [2021-11-23 13:32:14,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:14,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:14,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:14,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:14,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:32:14,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:32:14,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-23 13:32:14,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:32:14,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:14,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:14,453 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:14,484 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 [2021-11-23 13:32:14,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:14,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:32:14,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:14,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:14,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:14,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:32:14,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:32:14,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-23 13:32:14,508 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:32:14,511 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-23 13:32:14,512 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-23 13:32:14,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:14,514 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:14,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-23 13:32:14,519 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:32:14,524 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 13:32:14,524 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:32:14,524 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2021-11-23 13:32:14,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:14,561 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 13:32:14,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:14,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:32:14,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:14,596 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:32:14,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:32:14,597 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 [2021-11-23 13:32:14,597 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:14,618 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 5 states. [2021-11-23 13:32:14,621 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 [2021-11-23 13:32:14,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:14,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-11-23 13:32:14,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-23 13:32:14,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:14,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2021-11-23 13:32:14,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:14,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-23 13:32:14,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:14,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2021-11-23 13:32:14,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 13:32:14,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2021-11-23 13:32:14,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-11-23 13:32:14,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-11-23 13:32:14,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-11-23 13:32:14,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 13:32:14,636 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-11-23 13:32:14,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-11-23 13:32:14,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2021-11-23 13:32:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 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) [2021-11-23 13:32:14,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-11-23 13:32:14,639 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-23 13:32:14,639 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-23 13:32:14,639 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-23 13:32:14,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-11-23 13:32:14,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 13:32:14,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:32:14,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:32:14,642 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-11-23 13:32:14,642 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-23 13:32:14,642 INFO L791 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 148#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 149#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 145#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 146#L17-2 assume !(main_~xtmp~0#1 > 1); 151#L17-3 main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 150#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 144#L17-2 [2021-11-23 13:32:14,642 INFO L793 eck$LassoCheckResult]: Loop: 144#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 144#L17-2 [2021-11-23 13:32:14,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 2 times [2021-11-23 13:32:14,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:14,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649405764] [2021-11-23 13:32:14,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:14,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:32:14,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:32:14,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649405764] [2021-11-23 13:32:14,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649405764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:32:14,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:32:14,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:32:14,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943403123] [2021-11-23 13:32:14,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:32:14,723 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-23 13:32:14,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:14,724 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2021-11-23 13:32:14,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:32:14,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475959928] [2021-11-23 13:32:14,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:32:14,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:32:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:14,737 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:32:14,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:32:14,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:32:14,792 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:32:14,792 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:32:14,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:32:14,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:32:14,792 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 13:32:14,792 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,793 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:32:14,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:32:14,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2021-11-23 13:32:14,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:32:14,793 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:32:14,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:14,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:14,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:14,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:14,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:14,877 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:32:14,877 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 13:32:14,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:14,884 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:14,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:14,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:14,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-23 13:32:14,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-11-23 13:32:14,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:14,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:14,950 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:14,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-23 13:32:14,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:32:14,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:14,976 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:32:14,976 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0#1=0} Honda state: {ULTIMATE.start_main_~restmp~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0#1=3}, {ULTIMATE.start_main_~restmp~0#1=3}, {ULTIMATE.start_main_~restmp~0#1=-5}] Lambdas: [1, 1, 1] Nus: [0, 0] [2021-11-23 13:32:15,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:15,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:15,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:15,003 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:15,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-23 13:32:15,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:15,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:15,020 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:32:15,020 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: [] [2021-11-23 13:32:15,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:15,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:15,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:15,049 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:15,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-23 13:32:15,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:15,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:15,065 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:32:15,065 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: [] [2021-11-23 13:32:15,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:15,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:15,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:15,089 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:15,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:32:15,091 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:15,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-23 13:32:15,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:15,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:15,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:15,161 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:15,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-23 13:32:15,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:32:15,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:32:15,212 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 13:32:15,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-11-23 13:32:15,219 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:32:15,220 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:32:15,220 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:32:15,220 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:32:15,220 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:32:15,220 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:15,220 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:32:15,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:32:15,220 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2021-11-23 13:32:15,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:32:15,220 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:32:15,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:15,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:15,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:15,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:32:15,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:32:15,290 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:32:15,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:15,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:15,292 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:15,301 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 [2021-11-23 13:32:15,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-23 13:32:15,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:15,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:32:15,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:15,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:15,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:15,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:32:15,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:32:15,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:32:15,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:15,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:15,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:15,368 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:15,378 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 [2021-11-23 13:32:15,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:15,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:15,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:15,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:15,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:32:15,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:32:15,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-23 13:32:15,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:32:15,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:15,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:15,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:15,462 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:15,469 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 [2021-11-23 13:32:15,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:32:15,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:32:15,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:32:15,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:32:15,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:32:15,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:32:15,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:32:15,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-23 13:32:15,504 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:32:15,508 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-23 13:32:15,508 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-23 13:32:15,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:32:15,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:32:15,509 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:32:15,518 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:32:15,518 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 13:32:15,518 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:32:15,518 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2021-11-23 13:32:15,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-23 13:32:15,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:15,561 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 13:32:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:15,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:32:15,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:15,620 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:32:15,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:32:15,623 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 [2021-11-23 13:32:15,624 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:15,651 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 18 transitions. Complement of second has 5 states. [2021-11-23 13:32:15,652 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 [2021-11-23 13:32:15,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-11-23 13:32:15,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2021-11-23 13:32:15,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:15,654 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-23 13:32:15,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:15,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:32:15,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:15,714 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:32:15,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:15,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:32:15,715 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 [2021-11-23 13:32:15,716 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:15,734 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 18 transitions. Complement of second has 5 states. [2021-11-23 13:32:15,734 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 [2021-11-23 13:32:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:15,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-11-23 13:32:15,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2021-11-23 13:32:15,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:15,739 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-23 13:32:15,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:32:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:15,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:32:15,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:32:15,780 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:32:15,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:32:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:32:15,782 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 [2021-11-23 13:32:15,782 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:15,800 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 13 transitions. Complement of second has 4 states. [2021-11-23 13:32:15,800 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 [2021-11-23 13:32:15,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-11-23 13:32:15,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2021-11-23 13:32:15,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:15,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2021-11-23 13:32:15,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:15,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-23 13:32:15,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:32:15,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-11-23 13:32:15,812 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 13:32:15,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-11-23 13:32:15,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-23 13:32:15,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-23 13:32:15,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-23 13:32:15,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:32:15,813 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:32:15,813 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:32:15,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:32:15,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:32:15,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:32:15,814 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:32:15,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:32:15,815 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-23 13:32:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:32:15,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-23 13:32:15,818 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 13:32:15,818 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 13:32:15,818 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-23 13:32:15,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-23 13:32:15,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-23 13:32:15,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:32:15,819 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:32:15,819 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:32:15,819 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:32:15,819 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-23 13:32:15,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:32:15,819 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 13:32:15,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-23 13:32:15,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:32:15 BoogieIcfgContainer [2021-11-23 13:32:15,838 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 13:32:15,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:32:15,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:32:15,839 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:32:15,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:32:10" (3/4) ... [2021-11-23 13:32:15,843 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:32:15,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:32:15,845 INFO L158 Benchmark]: Toolchain (without parser) took 6390.25ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 69.3MB in the beginning and 72.5MB in the end (delta: -3.2MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2021-11-23 13:32:15,845 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:32:15,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.50ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 83.8MB in the end (delta: -14.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:32:15,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.16ms. Allocated memory is still 107.0MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:32:15,847 INFO L158 Benchmark]: Boogie Preprocessor took 23.86ms. Allocated memory is still 107.0MB. Free memory was 82.4MB in the beginning and 81.8MB in the end (delta: 630.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:32:15,851 INFO L158 Benchmark]: RCFGBuilder took 283.19ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 73.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:32:15,852 INFO L158 Benchmark]: BuchiAutomizer took 5753.94ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 73.4MB in the beginning and 73.3MB in the end (delta: 117.4kB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2021-11-23 13:32:15,852 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 130.0MB. Free memory was 73.3MB in the beginning and 72.5MB in the end (delta: 740.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:32:15,855 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.50ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 83.8MB in the end (delta: -14.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.16ms. Allocated memory is still 107.0MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.86ms. Allocated memory is still 107.0MB. Free memory was 82.4MB in the beginning and 81.8MB in the end (delta: 630.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 283.19ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 73.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5753.94ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 73.4MB in the beginning and 73.3MB in the end (delta: 117.4kB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 130.0MB. Free memory was 73.3MB in the beginning and 72.5MB in the end (delta: 740.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 32 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax168 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-23 13:32:15,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-23 13:32:16,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b836562c-1e8f-406f-af4b-8b52dd150875/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE