./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN --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 9b244382de79ee7e63c5a39dc4ba4645eb8228d285c75cf6df9353c232d1a135 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:47:08,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:47:08,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:47:08,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:47:08,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:47:08,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:47:08,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:47:08,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:47:08,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:47:08,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:47:08,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:47:08,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:47:08,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:47:08,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:47:08,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:47:08,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:47:08,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:47:08,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:47:08,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:47:08,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:47:08,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:47:08,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:47:08,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:47:08,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:47:08,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:47:08,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:47:08,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:47:08,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:47:08,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:47:08,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:47:08,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:47:08,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:47:08,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:47:08,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:47:08,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:47:08,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:47:08,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:47:08,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:47:08,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:47:08,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:47:08,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:47:08,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 11:47:08,365 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:47:08,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:47:08,366 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:47:08,366 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:47:08,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:47:08,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:47:08,368 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:47:08,368 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:47:08,368 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:47:08,368 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:47:08,369 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:47:08,370 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:47:08,370 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:47:08,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:47:08,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:47:08,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:47:08,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:47:08,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:47:08,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:47:08,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:47:08,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:47:08,372 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:47:08,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:47:08,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:47:08,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:47:08,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:47:08,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:47:08,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:47:08,375 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:47:08,375 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_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b244382de79ee7e63c5a39dc4ba4645eb8228d285c75cf6df9353c232d1a135 [2022-11-20 11:47:08,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:47:08,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:47:08,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:47:08,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:47:08,734 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:47:08,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1.c [2022-11-20 11:47:11,672 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:47:11,942 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:47:11,943 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1.c [2022-11-20 11:47:11,948 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/data/af35bb292/80d324523ed4411a9e6f51eb756cc334/FLAG174301d95 [2022-11-20 11:47:11,965 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/data/af35bb292/80d324523ed4411a9e6f51eb756cc334 [2022-11-20 11:47:11,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:47:11,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:47:11,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:47:11,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:47:11,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:47:11,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:11" (1/1) ... [2022-11-20 11:47:11,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315d49f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:11, skipping insertion in model container [2022-11-20 11:47:11,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:11" (1/1) ... [2022-11-20 11:47:11,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:47:12,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:47:12,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:47:12,193 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:47:12,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:47:12,227 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:47:12,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12 WrapperNode [2022-11-20 11:47:12,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:47:12,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:47:12,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:47:12,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:47:12,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,262 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-20 11:47:12,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:47:12,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:47:12,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:47:12,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:47:12,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:47:12,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:47:12,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:47:12,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:47:12,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (1/1) ... [2022-11-20 11:47:12,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:12,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:12,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:12,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:47:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:47:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:47:12,447 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:47:12,450 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:47:12,556 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:47:12,562 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:47:12,562 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:47:12,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:12 BoogieIcfgContainer [2022-11-20 11:47:12,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:47:12,566 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:47:12,566 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:47:12,571 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:47:12,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:47:12,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:47:11" (1/3) ... [2022-11-20 11:47:12,573 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a9b1121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:47:12, skipping insertion in model container [2022-11-20 11:47:12,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:47:12,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:12" (2/3) ... [2022-11-20 11:47:12,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a9b1121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:47:12, skipping insertion in model container [2022-11-20 11:47:12,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:47:12,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:12" (3/3) ... [2022-11-20 11:47:12,578 INFO L332 chiAutomizerObserver]: Analyzing ICFG Avery-FLOPS2006-Table1.c [2022-11-20 11:47:12,662 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:47:12,662 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:47:12,663 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:47:12,663 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:47:12,663 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:47:12,663 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:47:12,663 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:47:12,664 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:47:12,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2022-11-20 11:47:12,701 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-11-20 11:47:12,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:47:12,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:47:12,707 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 11:47:12,707 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-20 11:47:12,707 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:47:12,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2022-11-20 11:47:12,709 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-11-20 11:47:12,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:47:12,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:47:12,710 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 11:47:12,711 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-20 11:47:12,719 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~z~0#1, main_~i~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_~i~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := 0;main_~i~0#1 := main_~x~0#1; 9#L20true assume main_~y~0#1 > 0 && main_~x~0#1 > 0; 6#L21-2true [2022-11-20 11:47:12,720 INFO L750 eck$LassoCheckResult]: Loop: 6#L21-2true assume !!(main_~i~0#1 > 0);main_~i~0#1 := main_~i~0#1 - 1;main_~z~0#1 := 1 + main_~z~0#1; 6#L21-2true [2022-11-20 11:47:12,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:12,726 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-20 11:47:12,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:12,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335875561] [2022-11-20 11:47:12,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:12,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:47:12,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:47:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:47:12,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:47:12,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:12,879 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2022-11-20 11:47:12,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:12,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593604449] [2022-11-20 11:47:12,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:12,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:47:12,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:47:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:47:12,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:47:12,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:12,925 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2022-11-20 11:47:12,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:12,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792534167] [2022-11-20 11:47:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:12,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:47:12,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:47:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:47:12,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:47:13,076 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:47:13,090 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:47:13,090 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:47:13,090 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:47:13,091 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:47:13,091 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,091 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:47:13,091 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:47:13,091 INFO L133 ssoRankerPreferences]: Filename of dumped script: Avery-FLOPS2006-Table1.c_Iteration1_Loop [2022-11-20 11:47:13,092 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:47:13,092 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:47:13,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:13,122 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:13,126 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:13,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:13,208 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:47:13,209 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:47:13,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 11:47:13,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:47:13,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:13,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:47:13,264 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: [] [2022-11-20 11:47:13,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:13,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 11:47:13,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:47:13,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:13,310 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:47:13,310 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: [] [2022-11-20 11:47:13,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:13,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,322 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:47:13,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:13,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 11:47:13,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-20 11:47:13,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 11:47:13,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:47:13,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:13,389 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:47:13,390 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=0} Honda state: {ULTIMATE.start_main_~z~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~z~0#1=1}, {ULTIMATE.start_main_~z~0#1=-1}, {ULTIMATE.start_main_~z~0#1=1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2022-11-20 11:47:13,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:13,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,395 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 11:47:13,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:47:13,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:13,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:13,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,428 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:47:13,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:13,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 11:47:13,475 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:47:13,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:13,482 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:47:13,482 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:47:13,482 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:47:13,482 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:47:13,483 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:47:13,483 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,483 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:47:13,483 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:47:13,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: Avery-FLOPS2006-Table1.c_Iteration1_Loop [2022-11-20 11:47:13,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:47:13,483 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:47:13,486 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:13,496 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:13,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:13,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:13,581 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:47:13,586 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:47:13,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,589 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 11:47:13,602 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 [2022-11-20 11:47:13,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:47:13,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:47:13,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:47:13,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:47:13,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:47:13,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:47:13,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:47:13,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:13,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,646 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 11:47:13,655 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 [2022-11-20 11:47:13,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:47:13,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:47:13,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:47:13,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:47:13,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:47:13,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:47:13,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:47:13,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:13,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,732 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 [2022-11-20 11:47:13,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 11:47:13,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:47:13,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:47:13,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:47:13,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:47:13,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:47:13,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:47:13,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:47:13,759 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:47:13,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:13,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,765 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 11:47:13,769 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 [2022-11-20 11:47:13,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:47:13,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:47:13,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:47:13,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:47:13,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:47:13,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:47:13,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:47:13,796 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:47:13,807 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 11:47:13,807 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 11:47:13,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:13,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:13,834 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:13,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 11:47:13,837 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:47:13,838 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:47:13,838 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:47:13,838 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-20 11:47:13,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-11-20 11:47:13,846 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:47:13,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:13,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:47:13,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:47:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:13,904 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:47:13,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:47:13,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:13,988 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 11:47:13,994 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 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) [2022-11-20 11:47:14,073 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 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 29 states and 37 transitions. Complement of second has 6 states. [2022-11-20 11:47:14,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 11:47:14,080 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) [2022-11-20 11:47:14,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2022-11-20 11:47:14,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-20 11:47:14,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:47:14,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-20 11:47:14,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:47:14,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 2 letters. [2022-11-20 11:47:14,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:47:14,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2022-11-20 11:47:14,088 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-20 11:47:14,092 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 7 states and 9 transitions. [2022-11-20 11:47:14,093 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-11-20 11:47:14,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-20 11:47:14,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2022-11-20 11:47:14,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:14,095 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-20 11:47:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2022-11-20 11:47:14,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2022-11-20 11:47:14,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 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) [2022-11-20 11:47:14,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2022-11-20 11:47:14,121 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-11-20 11:47:14,121 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-11-20 11:47:14,121 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 11:47:14,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2022-11-20 11:47:14,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-20 11:47:14,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:47:14,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:47:14,122 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 11:47:14,123 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-20 11:47:14,123 INFO L748 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 74#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~z~0#1, main_~i~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_~i~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := 0;main_~i~0#1 := main_~x~0#1; 78#L20 assume main_~y~0#1 > 0 && main_~x~0#1 > 0; 76#L21-2 assume !(main_~i~0#1 > 0); 75#L25-1 [2022-11-20 11:47:14,123 INFO L750 eck$LassoCheckResult]: Loop: 75#L25-1 assume !!(main_~i~0#1 < main_~y~0#1);main_~i~0#1 := 1 + main_~i~0#1;main_~z~0#1 := main_~z~0#1 - 1; 75#L25-1 [2022-11-20 11:47:14,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:14,124 INFO L85 PathProgramCache]: Analyzing trace with hash 925610, now seen corresponding path program 1 times [2022-11-20 11:47:14,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:14,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173087185] [2022-11-20 11:47:14,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:14,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:14,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:14,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:14,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173087185] [2022-11-20 11:47:14,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173087185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:14,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:14,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:47:14,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252320653] [2022-11-20 11:47:14,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:14,271 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 11:47:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2022-11-20 11:47:14,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:14,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322511492] [2022-11-20 11:47:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:14,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:47:14,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:47:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:47:14,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:47:14,312 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:47:14,312 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:47:14,312 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:47:14,313 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:47:14,313 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:47:14,313 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:14,313 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:47:14,313 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:47:14,313 INFO L133 ssoRankerPreferences]: Filename of dumped script: Avery-FLOPS2006-Table1.c_Iteration2_Loop [2022-11-20 11:47:14,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:47:14,314 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:47:14,315 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:14,319 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:14,322 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:14,329 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:14,374 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:47:14,375 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:47:14,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:14,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:14,376 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:14,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:47:14,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:14,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 11:47:14,419 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:47:14,419 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: [] [2022-11-20 11:47:14,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:14,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:14,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:14,430 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:14,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:47:14,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:14,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 11:47:14,476 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:47:14,476 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:47:14,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:14,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:14,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:14,481 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:14,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 11:47:14,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:47:14,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:14,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:14,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:14,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:14,532 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:14,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:47:14,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:47:14,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 11:47:14,675 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:47:14,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:14,679 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:47:14,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:47:14,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:47:14,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:47:14,679 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:47:14,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:14,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:47:14,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:47:14,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: Avery-FLOPS2006-Table1.c_Iteration2_Loop [2022-11-20 11:47:14,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:47:14,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:47:14,682 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:14,690 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:14,701 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:14,707 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:47:14,769 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:47:14,769 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:47:14,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:14,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:14,774 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:14,784 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 [2022-11-20 11:47:14,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 11:47:14,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:47:14,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:47:14,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:47:14,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:47:14,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:47:14,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:47:14,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:47:14,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:14,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:14,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:14,831 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:14,844 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 [2022-11-20 11:47:14,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 11:47:14,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:47:14,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:47:14,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:47:14,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:47:14,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:47:14,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:47:14,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:47:14,881 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:47:14,887 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 11:47:14,887 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 11:47:14,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:47:14,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:14,891 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:14,899 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:47:14,899 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:47:14,899 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:47:14,900 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-20 11:47:14,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 11:47:14,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:14,905 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:47:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:14,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:47:14,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:47:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:14,957 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:47:14,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:47:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:14,961 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 11:47:14,961 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:14,973 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 9 transitions. Complement of second has 2 states. [2022-11-20 11:47:14,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-20 11:47:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:14,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2022-11-20 11:47:14,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-20 11:47:14,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:47:14,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 5 letters. Loop has 1 letters. [2022-11-20 11:47:14,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:47:14,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-20 11:47:14,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:47:14,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 9 transitions. [2022-11-20 11:47:14,979 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 11:47:14,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2022-11-20 11:47:14,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 11:47:14,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 11:47:14,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 11:47:14,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:14,982 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:47:14,982 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:47:14,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:14,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:47:14,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:47:14,986 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2022-11-20 11:47:14,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:14,988 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-20 11:47:14,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-20 11:47:14,989 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 11:47:14,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:47:14,990 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 11:47:14,991 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 11:47:14,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 11:47:14,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:14,991 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:47:14,991 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:47:14,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:47:14,993 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:47:14,993 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 11:47:14,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:47:14,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 11:47:14,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 11:47:15,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:47:15 BoogieIcfgContainer [2022-11-20 11:47:15,003 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:47:15,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:47:15,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:47:15,004 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:47:15,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:12" (3/4) ... [2022-11-20 11:47:15,007 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:47:15,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:47:15,008 INFO L158 Benchmark]: Toolchain (without parser) took 3034.91ms. Allocated memory is still 199.2MB. Free memory was 166.3MB in the beginning and 141.9MB in the end (delta: 24.5MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-11-20 11:47:15,008 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory was 80.5MB in the beginning and 80.3MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:47:15,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.65ms. Allocated memory is still 199.2MB. Free memory was 166.3MB in the beginning and 157.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:47:15,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.26ms. Allocated memory is still 199.2MB. Free memory was 157.5MB in the beginning and 155.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:47:15,010 INFO L158 Benchmark]: Boogie Preprocessor took 22.46ms. Allocated memory is still 199.2MB. Free memory was 155.9MB in the beginning and 155.3MB in the end (delta: 682.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:47:15,010 INFO L158 Benchmark]: RCFGBuilder took 277.07ms. Allocated memory is still 199.2MB. Free memory was 154.6MB in the beginning and 145.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:47:15,011 INFO L158 Benchmark]: BuchiAutomizer took 2437.21ms. Allocated memory is still 199.2MB. Free memory was 145.6MB in the beginning and 141.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-11-20 11:47:15,013 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 199.2MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:47:15,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory was 80.5MB in the beginning and 80.3MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.65ms. Allocated memory is still 199.2MB. Free memory was 166.3MB in the beginning and 157.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.26ms. Allocated memory is still 199.2MB. Free memory was 157.5MB in the beginning and 155.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.46ms. Allocated memory is still 199.2MB. Free memory was 155.9MB in the beginning and 155.3MB in the end (delta: 682.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.07ms. Allocated memory is still 199.2MB. Free memory was 154.6MB in the beginning and 145.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2437.21ms. Allocated memory is still 199.2MB. Free memory was 145.6MB in the beginning and 141.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 199.2MB. Free memory is still 141.9MB. There was no memory consumed. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -1 * i + y and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 11:47:15,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:15,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c206d097-2895-4745-932a-40d051d9514b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE