./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8 --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 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 --- 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-2329fc7 [2022-12-13 12:57:17,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:57:17,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:57:17,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:57:17,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:57:17,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:57:17,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:57:17,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:57:17,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:57:17,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:57:17,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:57:17,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:57:17,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:57:17,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:57:17,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:57:17,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:57:17,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:57:17,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:57:17,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:57:17,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:57:17,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:57:17,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:57:17,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:57:17,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:57:17,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:57:17,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:57:17,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:57:17,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:57:17,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:57:17,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:57:17,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:57:17,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:57:17,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:57:17,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:57:17,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:57:17,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:57:17,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:57:17,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:57:17,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:57:17,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:57:17,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:57:17,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 12:57:17,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:57:17,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:57:17,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:57:17,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:57:17,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:57:17,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:57:17,317 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:57:17,317 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 12:57:17,317 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 12:57:17,317 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 12:57:17,317 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 12:57:17,317 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 12:57:17,318 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 12:57:17,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:57:17,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:57:17,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:57:17,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:57:17,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 12:57:17,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 12:57:17,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 12:57:17,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:57:17,319 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 12:57:17,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:57:17,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 12:57:17,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:57:17,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:57:17,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:57:17,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:57:17,321 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 12:57:17,321 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_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 [2022-12-13 12:57:17,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:57:17,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:57:17,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:57:17,543 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:57:17,543 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:57:17,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-12-13 12:57:20,231 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:57:20,376 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:57:20,376 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-12-13 12:57:20,380 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/data/3cc55cbb5/017df5371aed4ee2b1514cdf2b11b193/FLAGd2c13dcb9 [2022-12-13 12:57:20,391 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/data/3cc55cbb5/017df5371aed4ee2b1514cdf2b11b193 [2022-12-13 12:57:20,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:57:20,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:57:20,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:57:20,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:57:20,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:57:20,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d6b1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20, skipping insertion in model container [2022-12-13 12:57:20,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:57:20,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:57:20,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:57:20,515 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:57:20,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:57:20,533 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:57:20,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20 WrapperNode [2022-12-13 12:57:20,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:57:20,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:57:20,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:57:20,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:57:20,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,554 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2022-12-13 12:57:20,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:57:20,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:57:20,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:57:20,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:57:20,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:57:20,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:57:20,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:57:20,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:57:20,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (1/1) ... [2022-12-13 12:57:20,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:20,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:20,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:20,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 12:57:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure p [2022-12-13 12:57:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2022-12-13 12:57:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:57:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:57:20,681 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:57:20,683 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:57:20,758 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:57:20,765 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:57:20,765 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:57:20,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:57:20 BoogieIcfgContainer [2022-12-13 12:57:20,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:57:20,768 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 12:57:20,768 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 12:57:20,770 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 12:57:20,771 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:57:20,771 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 12:57:20" (1/3) ... [2022-12-13 12:57:20,772 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@240a25df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:57:20, skipping insertion in model container [2022-12-13 12:57:20,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:57:20,772 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:20" (2/3) ... [2022-12-13 12:57:20,772 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@240a25df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:57:20, skipping insertion in model container [2022-12-13 12:57:20,773 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:57:20,773 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:57:20" (3/3) ... [2022-12-13 12:57:20,774 INFO L332 chiAutomizerObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex4.c [2022-12-13 12:57:20,815 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 12:57:20,816 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 12:57:20,816 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 12:57:20,816 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 12:57:20,816 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 12:57:20,816 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 12:57:20,816 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 12:57:20,816 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 12:57:20,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 12:57:20,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 12:57:20,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:57:20,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:57:20,847 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 12:57:20,847 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 12:57:20,847 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 12:57:20,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 12:57:20,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 12:57:20,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:57:20,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:57:20,851 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 12:57:20,851 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 12:57:20,858 INFO L748 eck$LassoCheckResult]: Stem: 16#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 15#L28true assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 8#L29true call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 17#$Ultimate##0true [2022-12-13 12:57:20,858 INFO L750 eck$LassoCheckResult]: Loop: 17#$Ultimate##0true ~m := #in~m;~n := #in~n;~r := #in~r; 2#L13true assume ~r > 0; 18#L14true call #t~ret0 := p(~m, ~r - 1, ~n);< 17#$Ultimate##0true [2022-12-13 12:57:20,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1356593, now seen corresponding path program 1 times [2022-12-13 12:57:20,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:20,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796603580] [2022-12-13 12:57:20,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:20,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:20,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:20,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:20,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:20,960 INFO L85 PathProgramCache]: Analyzing trace with hash 29913, now seen corresponding path program 1 times [2022-12-13 12:57:20,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:20,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149893136] [2022-12-13 12:57:20,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:20,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:20,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:20,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:20,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:20,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1759556521, now seen corresponding path program 1 times [2022-12-13 12:57:20,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:20,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483056864] [2022-12-13 12:57:20,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:20,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:20,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:21,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:21,119 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:21,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:21,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:21,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:21,120 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:57:21,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:21,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:21,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration1_Loop [2022-12-13 12:57:21,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:21,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:21,133 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,144 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,147 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,149 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,157 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,167 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,228 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:21,228 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:57:21,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 12:57:21,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:21,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:21,251 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:21,251 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:21,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:21,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 12:57:21,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:21,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:21,270 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:21,270 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:21,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 12:57:21,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,275 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 12:57:21,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:21,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:21,292 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:21,292 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~m=0} Honda state: {p_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:21,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 12:57:21,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 12:57:21,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:21,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:21,310 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:21,310 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~n=0} Honda state: {p_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:21,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 12:57:21,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,314 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 12:57:21,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:21,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:21,328 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:21,328 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:21,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 12:57:21,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,332 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 12:57:21,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:21,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:21,346 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:21,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=0} Honda state: {p_#in~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:21,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:21,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,350 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 12:57:21,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:21,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:21,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 12:57:21,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,379 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 12:57:21,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:57:21,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:21,458 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:57:21,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:21,462 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:21,462 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:21,462 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:21,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:21,462 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:57:21,462 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,462 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:21,462 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:21,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration1_Loop [2022-12-13 12:57:21,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:21,463 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:21,465 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,469 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,472 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,474 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,476 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,479 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:21,527 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:21,531 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:57:21,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,533 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 12:57:21,535 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 [2022-12-13 12:57:21,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:21,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:21,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 12:57:21,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,554 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 12:57:21,557 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 [2022-12-13 12:57:21,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:21,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:21,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 12:57:21,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,574 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 12:57:21,576 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 [2022-12-13 12:57:21,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:21,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:21,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,589 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 12:57:21,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,593 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 12:57:21,601 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 [2022-12-13 12:57:21,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:21,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:21,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 12:57:21,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,617 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 12:57:21,619 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 [2022-12-13 12:57:21,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:21,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:21,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:21,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,635 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 12:57:21,637 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 [2022-12-13 12:57:21,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:21,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:21,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 12:57:21,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,653 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 12:57:21,655 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 [2022-12-13 12:57:21,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:21,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:21,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 12:57:21,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,673 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 12:57:21,675 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 [2022-12-13 12:57:21,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:21,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:21,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 12:57:21,690 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-12-13 12:57:21,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,692 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 12:57:21,694 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 [2022-12-13 12:57:21,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,704 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:21,705 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:21,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:21,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,711 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 12:57:21,714 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 [2022-12-13 12:57:21,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,725 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:21,725 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:21,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:21,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,731 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 12:57:21,733 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 [2022-12-13 12:57:21,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,744 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:21,744 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:21,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:21,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,751 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 12:57:21,753 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 [2022-12-13 12:57:21,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,764 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:21,765 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:21,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 12:57:21,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,771 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 12:57:21,774 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 [2022-12-13 12:57:21,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,785 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:21,786 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:21,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:21,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,791 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 12:57:21,793 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 [2022-12-13 12:57:21,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,804 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:21,805 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:21,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:21,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 12:57:21,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,811 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 12:57:21,814 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 [2022-12-13 12:57:21,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:21,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:21,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:21,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:21,824 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:21,826 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:21,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:21,830 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:57:21,835 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 12:57:21,835 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 12:57:21,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:21,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:21,865 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:21,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 12:57:21,867 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:57:21,867 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:57:21,867 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:57:21,868 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_#in~n + 1*p_#in~r f1 = 1*p_#in~r Supporting invariants [] [2022-12-13 12:57:21,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-12-13 12:57:21,875 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:57:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:21,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:57:21,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:21,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 12:57:21,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:22,156 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 12:57:22,158 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:22,317 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 60 transitions. Complement of second has 12 states. [2022-12-13 12:57:22,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:22,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:22,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-12-13 12:57:22,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2022-12-13 12:57:22,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:22,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-12-13 12:57:22,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:22,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2022-12-13 12:57:22,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:22,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2022-12-13 12:57:22,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 12:57:22,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 21 states and 24 transitions. [2022-12-13 12:57:22,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-12-13 12:57:22,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-12-13 12:57:22,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2022-12-13 12:57:22,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:57:22,332 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-13 12:57:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2022-12-13 12:57:22,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2022-12-13 12:57:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-12-13 12:57:22,351 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-12-13 12:57:22,351 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-12-13 12:57:22,351 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 12:57:22,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2022-12-13 12:57:22,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 12:57:22,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:57:22,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:57:22,352 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:57:22,352 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 12:57:22,352 INFO L748 eck$LassoCheckResult]: Stem: 135#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 136#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 132#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 125#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 133#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 124#L13 assume !(~r > 0); 126#L16 [2022-12-13 12:57:22,352 INFO L750 eck$LassoCheckResult]: Loop: 126#L16 assume ~n > 0; 129#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 131#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 137#L13 assume !(~r > 0); 126#L16 [2022-12-13 12:57:22,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:22,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1303685879, now seen corresponding path program 1 times [2022-12-13 12:57:22,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:22,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484607369] [2022-12-13 12:57:22,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:22,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:22,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:22,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:22,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:22,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1221437, now seen corresponding path program 1 times [2022-12-13 12:57:22,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:22,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369773371] [2022-12-13 12:57:22,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:22,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:22,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:22,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:22,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:22,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1125326029, now seen corresponding path program 1 times [2022-12-13 12:57:22,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:22,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206519738] [2022-12-13 12:57:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:22,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:22,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:22,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:22,466 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:22,466 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:22,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:22,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:22,466 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:57:22,466 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,466 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:22,466 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:22,466 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration2_Loop [2022-12-13 12:57:22,466 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:22,466 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:22,468 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,470 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,471 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,473 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,479 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,526 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:22,526 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:57:22,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,527 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 12:57:22,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:22,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:22,542 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:22,543 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:22,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-12-13 12:57:22,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,546 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 12:57:22,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 12:57:22,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:22,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:22,569 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:22,569 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:22,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 12:57:22,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,572 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 12:57:22,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:22,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:22,586 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:22,586 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:22,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 12:57:22,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,589 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-12-13 12:57:22,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:22,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:22,613 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:22,613 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=0, p_~m=0, p_~r=0, p_#in~r=0} Honda state: {p_#in~m=0, p_~m=0, p_~r=0, p_#in~r=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:22,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-12-13 12:57:22,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,617 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-12-13 12:57:22,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:22,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:22,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:22,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,644 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-12-13 12:57:22,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:57:22,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:22,877 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:57:22,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:22,881 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:22,881 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:22,881 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:22,881 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:22,881 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:57:22,881 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,881 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:22,881 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:22,881 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration2_Loop [2022-12-13 12:57:22,881 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:22,882 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:22,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,887 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,895 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:22,939 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:22,939 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:57:22,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,940 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-12-13 12:57:22,942 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 [2022-12-13 12:57:22,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:22,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:22,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:22,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:22,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:22,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:22,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:22,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:22,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:22,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,958 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-12-13 12:57:22,960 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 [2022-12-13 12:57:22,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:22,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:22,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:22,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:22,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:22,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:22,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:22,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:22,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:22,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,976 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-12-13 12:57:22,979 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 [2022-12-13 12:57:22,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:22,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:22,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:22,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:22,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:22,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:22,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:22,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:22,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-12-13 12:57:22,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:22,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:22,996 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:22,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-12-13 12:57:22,998 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 [2022-12-13 12:57:23,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:23,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:23,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:23,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:23,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:23,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:23,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:23,010 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:23,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:23,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:23,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:23,013 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:23,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-12-13 12:57:23,016 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 [2022-12-13 12:57:23,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:23,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:23,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:23,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:23,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:23,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:23,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:23,030 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:57:23,033 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 12:57:23,034 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 12:57:23,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:23,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:23,035 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:23,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-12-13 12:57:23,037 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:57:23,037 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:57:23,037 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:57:23,037 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_~n) = 1*p_~n Supporting invariants [] [2022-12-13 12:57:23,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-12-13 12:57:23,040 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:57:23,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:23,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:57:23,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:23,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 12:57:23,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:23,122 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-12-13 12:57:23,122 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:23,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 31 transitions. Complement of second has 13 states. [2022-12-13 12:57:23,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:23,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:23,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-12-13 12:57:23,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 4 letters. [2022-12-13 12:57:23,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:23,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2022-12-13 12:57:23,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:23,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 8 letters. [2022-12-13 12:57:23,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:23,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2022-12-13 12:57:23,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 12:57:23,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 25 transitions. [2022-12-13 12:57:23,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-12-13 12:57:23,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-12-13 12:57:23,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2022-12-13 12:57:23,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:57:23,142 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-12-13 12:57:23,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2022-12-13 12:57:23,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-12-13 12:57:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-12-13 12:57:23,144 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-12-13 12:57:23,144 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-12-13 12:57:23,144 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 12:57:23,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2022-12-13 12:57:23,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 12:57:23,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:57:23,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:57:23,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:57:23,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 12:57:23,145 INFO L748 eck$LassoCheckResult]: Stem: 240#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 241#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 237#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 227#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 238#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 226#L13 assume !(~r > 0); 229#L16 assume ~n > 0; 231#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 236#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 242#L13 assume ~r > 0; 234#L14 [2022-12-13 12:57:23,145 INFO L750 eck$LassoCheckResult]: Loop: 234#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 235#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 244#L13 assume ~r > 0; 234#L14 [2022-12-13 12:57:23,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:23,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1125326032, now seen corresponding path program 1 times [2022-12-13 12:57:23,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:23,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715270071] [2022-12-13 12:57:23,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:23,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:23,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:23,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:23,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:23,157 INFO L85 PathProgramCache]: Analyzing trace with hash 57663, now seen corresponding path program 2 times [2022-12-13 12:57:23,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:23,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572103115] [2022-12-13 12:57:23,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:23,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:23,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:23,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:23,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:23,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1926921136, now seen corresponding path program 1 times [2022-12-13 12:57:23,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:23,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919646864] [2022-12-13 12:57:23,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:23,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:23,170 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:23,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:23,241 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:23,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:23,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:23,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:23,241 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:57:23,241 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:23,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:23,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:23,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration3_Loop [2022-12-13 12:57:23,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:23,241 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:23,242 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:23,248 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:23,250 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:23,253 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:23,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:23,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:23,293 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:57:23,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:23,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:23,294 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:23,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-12-13 12:57:23,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:23,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:23,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-12-13 12:57:23,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:23,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:23,323 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:23,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-12-13 12:57:23,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:57:23,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:35,350 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-12-13 12:57:35,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-12-13 12:57:35,354 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:35,354 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:35,354 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:35,355 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:35,355 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:57:35,355 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,355 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:35,355 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:35,355 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration3_Loop [2022-12-13 12:57:35,355 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:35,355 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:35,356 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,357 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,364 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,367 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,369 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:35,407 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:57:35,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:35,408 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:35,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-12-13 12:57:35,410 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 [2022-12-13 12:57:35,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:35,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:35,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:35,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:35,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:35,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:35,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:35,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:35,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-12-13 12:57:35,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:35,425 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:35,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-12-13 12:57:35,427 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 [2022-12-13 12:57:35,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:35,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:35,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:35,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:35,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:35,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:35,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:35,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:35,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:35,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:35,444 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:35,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-12-13 12:57:35,446 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 [2022-12-13 12:57:35,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:35,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:35,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:35,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:35,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:35,457 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:35,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:35,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:35,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-12-13 12:57:35,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:35,462 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:35,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-12-13 12:57:35,464 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 [2022-12-13 12:57:35,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:35,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:35,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:35,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:35,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:35,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:35,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:35,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:35,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-12-13 12:57:35,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:35,479 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:35,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-12-13 12:57:35,481 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 [2022-12-13 12:57:35,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:35,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:35,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:35,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:35,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:35,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:35,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:35,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:35,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:35,495 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-12-13 12:57:35,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:35,497 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:35,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-12-13 12:57:35,499 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 [2022-12-13 12:57:35,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:35,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:35,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:35,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:35,509 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:35,509 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:35,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:35,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:35,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-12-13 12:57:35,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:35,514 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:35,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-12-13 12:57:35,516 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 [2022-12-13 12:57:35,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:35,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:35,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:35,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:35,527 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:35,528 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:35,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:35,532 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:57:35,538 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-12-13 12:57:35,538 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-12-13 12:57:35,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:35,539 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:35,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-12-13 12:57:35,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:57:35,541 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:57:35,541 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:57:35,541 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~n + 1*p_~r f1 = 1*p_~n Supporting invariants [] [2022-12-13 12:57:35,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-12-13 12:57:35,544 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:57:35,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:35,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:57:35,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:35,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 12:57:35,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:35,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-12-13 12:57:35,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:35,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:35,753 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 12:57:35,753 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:35,816 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 51 transitions. Complement of second has 9 states. [2022-12-13 12:57:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:35,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:35,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-12-13 12:57:35,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2022-12-13 12:57:35,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:35,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2022-12-13 12:57:35,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:35,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2022-12-13 12:57:35,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:35,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 51 transitions. [2022-12-13 12:57:35,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 12:57:35,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 45 transitions. [2022-12-13 12:57:35,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-12-13 12:57:35,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-12-13 12:57:35,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2022-12-13 12:57:35,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:57:35,821 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-12-13 12:57:35,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2022-12-13 12:57:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2022-12-13 12:57:35,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 8 states have call successors, (11), 8 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2022-12-13 12:57:35,825 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-12-13 12:57:35,825 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-12-13 12:57:35,825 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 12:57:35,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2022-12-13 12:57:35,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 12:57:35,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:57:35,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:57:35,827 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:57:35,827 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 12:57:35,827 INFO L748 eck$LassoCheckResult]: Stem: 373#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 374#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 370#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 361#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 375#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 387#L13 assume !(~r > 0); 386#L16 assume ~n > 0; 376#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 384#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 382#L13 assume ~r > 0; 368#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 378#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 385#L13 assume !(~r > 0); 379#L16 [2022-12-13 12:57:35,827 INFO L750 eck$LassoCheckResult]: Loop: 379#L16 assume ~n > 0; 364#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 366#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 380#L13 assume !(~r > 0); 379#L16 [2022-12-13 12:57:35,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:35,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1926921139, now seen corresponding path program 2 times [2022-12-13 12:57:35,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:35,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736023902] [2022-12-13 12:57:35,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:35,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:35,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:35,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:35,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:35,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1221437, now seen corresponding path program 2 times [2022-12-13 12:57:35,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:35,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599523076] [2022-12-13 12:57:35,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:35,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:35,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:35,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:35,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:35,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1157887471, now seen corresponding path program 3 times [2022-12-13 12:57:35,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:35,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062483974] [2022-12-13 12:57:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:35,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:35,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:35,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:35,933 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:35,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:35,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:35,933 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:35,933 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:57:35,933 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:35,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:35,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration4_Loop [2022-12-13 12:57:35,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:35,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:35,935 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,940 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,943 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,949 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:35,990 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:35,990 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:57:35,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:35,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:35,991 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:35,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-12-13 12:57:35,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:35,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:36,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-12-13 12:57:36,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:36,016 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:36,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-12-13 12:57:36,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:57:36,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:36,253 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:57:36,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-12-13 12:57:36,256 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:36,256 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:36,256 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:36,256 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:36,256 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:57:36,256 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:36,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:36,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration4_Loop [2022-12-13 12:57:36,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:36,256 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:36,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:36,263 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:36,270 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:36,271 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:36,272 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:36,312 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:36,312 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:57:36,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:36,313 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:36,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-12-13 12:57:36,315 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 [2022-12-13 12:57:36,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:36,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:36,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:36,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:36,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:36,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:36,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:36,329 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:57:36,332 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 12:57:36,332 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 12:57:36,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:36,333 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:36,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-12-13 12:57:36,335 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:57:36,335 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:57:36,335 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:57:36,335 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_~n) = 1*p_~n Supporting invariants [] [2022-12-13 12:57:36,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2022-12-13 12:57:36,338 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:57:36,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:36,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:57:36,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:36,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 12:57:36,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:36,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:36,411 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-12-13 12:57:36,411 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:36,424 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 13 states. [2022-12-13 12:57:36,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:36,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-12-13 12:57:36,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 13 letters. Loop has 4 letters. [2022-12-13 12:57:36,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:36,426 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 12:57:36,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:36,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:57:36,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:36,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 12:57:36,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:36,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:36,506 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-12-13 12:57:36,507 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:36,534 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 13 states. [2022-12-13 12:57:36,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:36,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-12-13 12:57:36,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2022-12-13 12:57:36,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:36,537 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 12:57:36,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:36,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:57:36,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:36,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 12:57:36,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:36,608 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-12-13 12:57:36,608 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:36,620 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 68 transitions. Complement of second has 15 states. [2022-12-13 12:57:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:36,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:36,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2022-12-13 12:57:36,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 4 letters. [2022-12-13 12:57:36,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:36,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 4 letters. [2022-12-13 12:57:36,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:36,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2022-12-13 12:57:36,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:36,623 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 68 transitions. [2022-12-13 12:57:36,624 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-12-13 12:57:36,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 39 states and 47 transitions. [2022-12-13 12:57:36,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-12-13 12:57:36,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-12-13 12:57:36,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 47 transitions. [2022-12-13 12:57:36,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:57:36,625 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 47 transitions. [2022-12-13 12:57:36,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 47 transitions. [2022-12-13 12:57:36,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 24. [2022-12-13 12:57:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 17 states have internal predecessors, (23), 5 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-12-13 12:57:36,627 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-12-13 12:57:36,627 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-12-13 12:57:36,627 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 12:57:36,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2022-12-13 12:57:36,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 12:57:36,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:57:36,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:57:36,627 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:57:36,627 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2022-12-13 12:57:36,628 INFO L748 eck$LassoCheckResult]: Stem: 770#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 771#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 767#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 761#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 772#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 760#L13 assume ~r > 0; 758#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 768#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 757#L13 assume !(~r > 0); 759#L16 [2022-12-13 12:57:36,628 INFO L750 eck$LassoCheckResult]: Loop: 759#L16 assume ~n > 0; 763#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 776#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 775#L13 assume ~r > 0; 762#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 773#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 774#L13 assume !(~r > 0); 759#L16 [2022-12-13 12:57:36,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:36,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1283297937, now seen corresponding path program 1 times [2022-12-13 12:57:36,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:36,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46934474] [2022-12-13 12:57:36,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:36,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:36,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:36,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:36,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:36,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2028029801, now seen corresponding path program 1 times [2022-12-13 12:57:36,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:36,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532973505] [2022-12-13 12:57:36,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:36,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:36,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:36,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:36,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1308917189, now seen corresponding path program 4 times [2022-12-13 12:57:36,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:36,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430095851] [2022-12-13 12:57:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:36,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:36,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:36,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:36,822 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:36,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:36,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:36,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:36,822 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:57:36,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:36,823 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:36,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration5_Loop [2022-12-13 12:57:36,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:36,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:36,823 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:36,825 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:36,826 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:36,828 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:36,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:36,908 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:36,908 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:57:36,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:36,910 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:36,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-12-13 12:57:36,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:36,912 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:36,923 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:36,923 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:36,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:36,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:36,927 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:36,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-12-13 12:57:36,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:36,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:36,940 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:36,940 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:36,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2022-12-13 12:57:36,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:36,944 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:36,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-12-13 12:57:36,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:36,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:36,957 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:36,957 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:36,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2022-12-13 12:57:36,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:36,960 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:36,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-12-13 12:57:36,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:36,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:36,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2022-12-13 12:57:36,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:36,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:36,986 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:36,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-12-13 12:57:36,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:57:36,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:39,498 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:57:39,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2022-12-13 12:57:39,502 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:39,502 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:39,503 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:39,503 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:39,503 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:57:39,503 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,503 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:39,503 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:39,503 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration5_Loop [2022-12-13 12:57:39,503 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:39,503 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:39,504 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:39,505 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:39,507 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:39,509 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:39,579 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:39,580 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:57:39,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:39,581 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:39,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-12-13 12:57:39,582 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 [2022-12-13 12:57:39,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:39,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:39,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:39,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:39,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:39,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:39,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:39,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:39,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2022-12-13 12:57:39,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:39,597 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:39,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-12-13 12:57:39,599 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 [2022-12-13 12:57:39,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:39,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:39,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:39,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:39,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:39,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:39,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:39,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:39,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-12-13 12:57:39,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:39,614 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:39,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-12-13 12:57:39,616 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 [2022-12-13 12:57:39,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:39,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:39,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:39,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:39,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:39,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:39,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:39,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:39,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:39,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:39,631 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:39,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-12-13 12:57:39,633 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 [2022-12-13 12:57:39,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:39,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:39,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:39,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:39,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:39,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:39,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:39,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:39,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2022-12-13 12:57:39,652 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-12-13 12:57:39,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:39,653 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:39,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-12-13 12:57:39,655 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 [2022-12-13 12:57:39,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:39,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:39,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:39,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:39,665 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:39,666 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:39,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:39,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:39,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2022-12-13 12:57:39,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:39,670 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:39,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-12-13 12:57:39,672 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 [2022-12-13 12:57:39,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:39,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:39,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:39,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:39,682 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:39,683 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:39,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:39,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:39,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-12-13 12:57:39,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:39,687 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:39,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-12-13 12:57:39,689 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 [2022-12-13 12:57:39,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:39,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:39,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:39,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:39,700 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:39,700 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:39,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:39,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:39,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2022-12-13 12:57:39,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:39,705 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:39,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-12-13 12:57:39,707 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 [2022-12-13 12:57:39,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:39,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:39,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:39,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:39,719 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:39,721 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:39,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:39,725 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:57:39,730 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-12-13 12:57:39,730 INFO L444 ModelExtractionUtils]: 10 out of 15 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 12:57:39,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:39,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:39,731 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:39,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-12-13 12:57:39,733 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:57:39,733 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:57:39,733 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:57:39,733 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~m + 1*p_~r f1 = 1*p_~m Supporting invariants [] [2022-12-13 12:57:39,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:39,735 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:57:39,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:39,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:57:39,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:39,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 12:57:39,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:40,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:40,009 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2022-12-13 12:57:40,010 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:40,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2022-12-13 12:57:40,234 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 92 states and 110 transitions. Complement of second has 26 states. [2022-12-13 12:57:40,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:40,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:40,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2022-12-13 12:57:40,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 9 letters. Loop has 7 letters. [2022-12-13 12:57:40,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:40,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 16 letters. Loop has 7 letters. [2022-12-13 12:57:40,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:40,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 9 letters. Loop has 14 letters. [2022-12-13 12:57:40,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:40,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 110 transitions. [2022-12-13 12:57:40,238 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-12-13 12:57:40,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 77 states and 93 transitions. [2022-12-13 12:57:40,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-12-13 12:57:40,239 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-12-13 12:57:40,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 93 transitions. [2022-12-13 12:57:40,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:57:40,240 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 93 transitions. [2022-12-13 12:57:40,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 93 transitions. [2022-12-13 12:57:40,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 52. [2022-12-13 12:57:40,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 36 states have internal predecessors, (48), 13 states have call successors, (16), 15 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:40,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2022-12-13 12:57:40,244 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-12-13 12:57:40,244 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-12-13 12:57:40,244 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 12:57:40,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 64 transitions. [2022-12-13 12:57:40,245 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-12-13 12:57:40,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:57:40,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:57:40,246 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:57:40,246 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 12:57:40,246 INFO L748 eck$LassoCheckResult]: Stem: 994#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 995#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 989#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 982#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 996#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 1020#L13 assume ~r > 0; 985#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 990#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 991#L13 assume !(~r > 0); 984#L16 assume ~n > 0; 986#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1008#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 1000#L13 assume ~r > 0; 977#L14 [2022-12-13 12:57:40,246 INFO L750 eck$LassoCheckResult]: Loop: 977#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 997#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 976#L13 assume ~r > 0; 977#L14 [2022-12-13 12:57:40,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:40,246 INFO L85 PathProgramCache]: Analyzing trace with hash 681879976, now seen corresponding path program 5 times [2022-12-13 12:57:40,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:40,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259281565] [2022-12-13 12:57:40,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:40,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:40,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:40,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:40,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:40,261 INFO L85 PathProgramCache]: Analyzing trace with hash 57663, now seen corresponding path program 3 times [2022-12-13 12:57:40,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:40,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445747246] [2022-12-13 12:57:40,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:40,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:40,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:40,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:40,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:40,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1308917192, now seen corresponding path program 6 times [2022-12-13 12:57:40,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:40,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153042905] [2022-12-13 12:57:40,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:40,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:40,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:40,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:40,336 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:40,336 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:40,336 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:40,336 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:40,336 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:57:40,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:40,336 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:40,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:40,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration6_Loop [2022-12-13 12:57:40,336 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:40,336 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:40,337 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:40,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:40,340 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:40,343 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:40,348 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:40,383 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:40,383 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:57:40,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:40,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:40,384 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:40,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-12-13 12:57:40,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:40,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:40,397 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:40,397 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:40,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2022-12-13 12:57:40,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:40,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:40,401 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:40,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-12-13 12:57:40,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:40,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:40,414 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:40,414 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:40,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2022-12-13 12:57:40,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:40,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:40,417 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:40,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-12-13 12:57:40,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:40,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:40,437 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:40,437 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=6, p_~m=6} Honda state: {p_#in~m=6, p_~m=6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:40,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2022-12-13 12:57:40,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:40,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:40,440 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:40,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-12-13 12:57:40,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:40,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:40,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2022-12-13 12:57:40,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:40,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:40,464 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:40,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-12-13 12:57:40,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:57:40,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:52,576 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-12-13 12:57:52,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2022-12-13 12:57:52,584 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:52,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:52,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:52,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:52,585 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:57:52,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:52,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:52,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration6_Loop [2022-12-13 12:57:52,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:52,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:52,586 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:52,588 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:52,590 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:52,597 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:52,600 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:52,635 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:52,635 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:57:52,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,636 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-12-13 12:57:52,638 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 [2022-12-13 12:57:52,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:52,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:52,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:52,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:52,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:52,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:52,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:52,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:52,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:52,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,653 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-12-13 12:57:52,655 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 [2022-12-13 12:57:52,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:52,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:52,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:52,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:52,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:52,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:52,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:52,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:52,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2022-12-13 12:57:52,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,670 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-12-13 12:57:52,672 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 [2022-12-13 12:57:52,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:52,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:52,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:52,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:52,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:52,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:52,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:52,686 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:52,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2022-12-13 12:57:52,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,690 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2022-12-13 12:57:52,692 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 [2022-12-13 12:57:52,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:52,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:52,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:52,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:52,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:52,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:52,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:52,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:52,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2022-12-13 12:57:52,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,708 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2022-12-13 12:57:52,710 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 [2022-12-13 12:57:52,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:52,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:52,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:52,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:52,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:52,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:52,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:52,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:52,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2022-12-13 12:57:52,724 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-12-13 12:57:52,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,725 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2022-12-13 12:57:52,727 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 [2022-12-13 12:57:52,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:52,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:52,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:52,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:52,737 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:52,738 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:52,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:52,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:52,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2022-12-13 12:57:52,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,742 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2022-12-13 12:57:52,744 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 [2022-12-13 12:57:52,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:52,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:52,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:52,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:52,754 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:52,755 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:52,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:52,756 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:52,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2022-12-13 12:57:52,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,759 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2022-12-13 12:57:52,761 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 [2022-12-13 12:57:52,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:52,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:52,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:52,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:52,771 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:57:52,773 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:57:52,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:52,777 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:57:52,782 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-12-13 12:57:52,782 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-12-13 12:57:52,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:52,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,783 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2022-12-13 12:57:52,785 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:57:52,785 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:57:52,785 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:57:52,785 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~n + 1*p_~r f1 = 1*p_~n Supporting invariants [] [2022-12-13 12:57:52,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2022-12-13 12:57:52,788 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:57:52,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:52,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:57:52,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:52,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 12:57:52,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:52,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:52,939 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 12:57:52,940 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:53,005 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 83 states and 105 transitions. Complement of second has 9 states. [2022-12-13 12:57:53,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:53,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-12-13 12:57:53,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2022-12-13 12:57:53,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:53,007 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 12:57:53,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:53,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:57:53,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:53,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 12:57:53,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:53,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2022-12-13 12:57:53,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:53,169 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 12:57:53,169 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:53,230 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 83 states and 105 transitions. Complement of second has 9 states. [2022-12-13 12:57:53,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:53,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:53,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-12-13 12:57:53,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2022-12-13 12:57:53,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:53,231 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 12:57:53,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:53,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:57:53,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:53,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 12:57:53,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:53,379 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 12:57:53,379 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:53,445 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 114 transitions. Complement of second has 8 states. [2022-12-13 12:57:53,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:53,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:53,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-13 12:57:53,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 3 letters. [2022-12-13 12:57:53,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:53,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2022-12-13 12:57:53,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:53,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 6 letters. [2022-12-13 12:57:53,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:53,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 114 transitions. [2022-12-13 12:57:53,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-12-13 12:57:53,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 62 states and 78 transitions. [2022-12-13 12:57:53,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-12-13 12:57:53,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-12-13 12:57:53,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 78 transitions. [2022-12-13 12:57:53,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:57:53,449 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-12-13 12:57:53,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 78 transitions. [2022-12-13 12:57:53,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 41. [2022-12-13 12:57:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 10 states have call successors, (14), 11 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:53,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2022-12-13 12:57:53,451 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2022-12-13 12:57:53,451 INFO L428 stractBuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2022-12-13 12:57:53,451 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-12-13 12:57:53,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 51 transitions. [2022-12-13 12:57:53,451 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-12-13 12:57:53,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:57:53,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:57:53,451 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 12:57:53,452 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2022-12-13 12:57:53,452 INFO L748 eck$LassoCheckResult]: Stem: 1496#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1497#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1491#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 1486#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 1498#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 1511#L13 assume !(~r > 0); 1485#L16 assume ~n > 0; 1487#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1519#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 1513#L13 assume !(~r > 0); 1488#L16 assume ~n > 0; 1489#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1514#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 1515#L13 assume ~r > 0; 1493#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 1492#$Ultimate##0 [2022-12-13 12:57:53,452 INFO L750 eck$LassoCheckResult]: Loop: 1492#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 1495#L13 assume !(~r > 0); 1505#L16 assume ~n > 0; 1499#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1503#$Ultimate##0 ~m := #in~m;~n := #in~n;~r := #in~r; 1501#L13 assume ~r > 0; 1494#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 1492#$Ultimate##0 [2022-12-13 12:57:53,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:53,452 INFO L85 PathProgramCache]: Analyzing trace with hash 708644913, now seen corresponding path program 7 times [2022-12-13 12:57:53,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:53,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577667983] [2022-12-13 12:57:53,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:53,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:53,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:57:53,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577667983] [2022-12-13 12:57:53,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577667983] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:57:53,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793853272] [2022-12-13 12:57:53,512 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 12:57:53,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:57:53,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:53,513 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:57:53,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2022-12-13 12:57:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:53,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:57:53,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:53,556 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:53,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:57:53,577 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:53,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793853272] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:57:53,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:57:53,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2022-12-13 12:57:53,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252194024] [2022-12-13 12:57:53,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:57:53,580 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 12:57:53,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:53,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1923820573, now seen corresponding path program 2 times [2022-12-13 12:57:53,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:53,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402900761] [2022-12-13 12:57:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:53,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:53,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:53,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:53,684 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:53,684 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:53,684 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:53,684 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:53,685 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:57:53,685 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:53,685 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:53,685 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:53,685 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration7_Loop [2022-12-13 12:57:53,685 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:53,685 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:53,685 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,687 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,695 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,697 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,698 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,699 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,700 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,734 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:53,734 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:57:53,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:53,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:53,735 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:53,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2022-12-13 12:57:53,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:53,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:53,748 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:57:53,748 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~n=0} Honda state: {p_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:57:53,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2022-12-13 12:57:53,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:53,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:53,751 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:53,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2022-12-13 12:57:53,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:57:53,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:53,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2022-12-13 12:57:53,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:53,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:53,776 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:53,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2022-12-13 12:57:53,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:57:53,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:57:53,865 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:57:53,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2022-12-13 12:57:53,867 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:57:53,867 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:57:53,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:57:53,868 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:57:53,868 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:57:53,868 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:53,868 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:57:53,868 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:57:53,868 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration7_Loop [2022-12-13 12:57:53,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:57:53,868 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:57:53,868 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,871 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,878 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,879 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,879 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,880 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,881 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:57:53,918 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:57:53,918 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:57:53,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:53,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:53,919 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:53,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2022-12-13 12:57:53,921 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 [2022-12-13 12:57:53,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:53,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:53,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:53,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:53,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:53,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:53,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:53,933 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:57:53,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2022-12-13 12:57:53,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:53,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:53,936 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:53,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2022-12-13 12:57:53,938 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 [2022-12-13 12:57:53,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:57:53,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:57:53,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:57:53,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:57:53,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:57:53,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:57:53,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:57:53,951 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:57:53,955 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-12-13 12:57:53,955 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-12-13 12:57:53,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:57:53,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:53,956 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:53,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2022-12-13 12:57:53,958 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:57:53,958 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:57:53,958 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:57:53,958 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_#in~m) = 1*p_#in~m Supporting invariants [] [2022-12-13 12:57:53,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2022-12-13 12:57:53,960 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:57:53,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:53,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 12:57:53,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:54,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 12:57:54,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:54,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:54,045 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2022-12-13 12:57:54,045 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:54,097 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 175 states and 224 transitions. Complement of second has 25 states. [2022-12-13 12:57:54,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:54,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2022-12-13 12:57:54,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 15 letters. Loop has 7 letters. [2022-12-13 12:57:54,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:54,099 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 12:57:54,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:54,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 12:57:54,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:57:54,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 12:57:54,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:57:54,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:57:54,178 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2022-12-13 12:57:54,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:54,247 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 194 states and 254 transitions. Complement of second has 30 states. [2022-12-13 12:57:54,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-12-13 12:57:54,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:54,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 23 transitions. [2022-12-13 12:57:54,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 15 letters. Loop has 7 letters. [2022-12-13 12:57:54,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:54,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 22 letters. Loop has 7 letters. [2022-12-13 12:57:54,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:54,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 15 letters. Loop has 14 letters. [2022-12-13 12:57:54,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:57:54,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 254 transitions. [2022-12-13 12:57:54,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-12-13 12:57:54,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 187 states and 243 transitions. [2022-12-13 12:57:54,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-12-13 12:57:54,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-12-13 12:57:54,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 243 transitions. [2022-12-13 12:57:54,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:57:54,255 INFO L218 hiAutomatonCegarLoop]: Abstraction has 187 states and 243 transitions. [2022-12-13 12:57:54,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 243 transitions. [2022-12-13 12:57:54,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 105. [2022-12-13 12:57:54,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 67 states have internal predecessors, (97), 28 states have call successors, (43), 37 states have call predecessors, (43), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2022-12-13 12:57:54,264 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 140 transitions. [2022-12-13 12:57:54,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:57:54,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:57:54,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:57:54,267 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:57:54,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:57:54,304 INFO L93 Difference]: Finished difference Result 109 states and 126 transitions. [2022-12-13 12:57:54,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 126 transitions. [2022-12-13 12:57:54,305 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 12:57:54,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 0 states and 0 transitions. [2022-12-13 12:57:54,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 12:57:54,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 12:57:54,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 12:57:54,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:57:54,305 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:57:54,305 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:57:54,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:57:54,306 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:57:54,306 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-12-13 12:57:54,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 12:57:54,306 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 12:57:54,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 12:57:54,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 12:57:54 BoogieIcfgContainer [2022-12-13 12:57:54,311 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 12:57:54,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:57:54,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:57:54,312 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:57:54,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:57:20" (3/4) ... [2022-12-13 12:57:54,314 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:57:54,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:57:54,314 INFO L158 Benchmark]: Toolchain (without parser) took 33920.20ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 118.5MB in the beginning and 100.2MB in the end (delta: 18.3MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2022-12-13 12:57:54,314 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 153.1MB. Free memory was 121.5MB in the beginning and 121.5MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:57:54,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 138.76ms. Allocated memory is still 153.1MB. Free memory was 117.8MB in the beginning and 108.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 12:57:54,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.76ms. Allocated memory is still 153.1MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:57:54,315 INFO L158 Benchmark]: Boogie Preprocessor took 11.74ms. Allocated memory is still 153.1MB. Free memory was 107.3MB in the beginning and 106.6MB in the end (delta: 678.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:57:54,315 INFO L158 Benchmark]: RCFGBuilder took 199.52ms. Allocated memory is still 153.1MB. Free memory was 106.6MB in the beginning and 97.5MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:57:54,315 INFO L158 Benchmark]: BuchiAutomizer took 33543.57ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 97.5MB in the beginning and 101.2MB in the end (delta: -3.6MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2022-12-13 12:57:54,315 INFO L158 Benchmark]: Witness Printer took 2.40ms. Allocated memory is still 184.5MB. Free memory was 101.2MB in the beginning and 100.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:57:54,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 153.1MB. Free memory was 121.5MB in the beginning and 121.5MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 138.76ms. Allocated memory is still 153.1MB. Free memory was 117.8MB in the beginning and 108.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.76ms. Allocated memory is still 153.1MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.74ms. Allocated memory is still 153.1MB. Free memory was 107.3MB in the beginning and 106.6MB in the end (delta: 678.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 199.52ms. Allocated memory is still 153.1MB. Free memory was 106.6MB in the beginning and 97.5MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 33543.57ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 97.5MB in the beginning and 101.2MB in the end (delta: -3.6MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Witness Printer took 2.40ms. Allocated memory is still 184.5MB. Free memory was 101.2MB in the beginning and 100.2MB in the end (delta: 1.0MB). 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 8 terminating modules (1 trivial, 5 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function (if \old(r) + \old(n) > 0 then 1 else 0), (if \old(r) + \old(n) > 0 then \old(r) + \old(n) else \old(r)) and consists of 4 locations. One deterministic module has affine ranking function n and consists of 5 locations. One deterministic module has 2-nested ranking function (if n + r > 0 then 1 else 0), (if n + r > 0 then n + r else n) and consists of 4 locations. One deterministic module has 2-nested ranking function (if m + r > 0 then 1 else 0), (if m + r > 0 then m + r else m) and consists of 8 locations. One deterministic module has affine ranking function \old(m) and consists of 8 locations. One nondeterministic module has affine ranking function n and consists of 5 locations. One nondeterministic module has 2-nested ranking function (if n + r > 0 then 1 else 0), (if n + r > 0 then n + r else n) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.5s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 30.7s. Construction of modules took 0.1s. Büchi inclusion checks took 2.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 157 StatesRemovedByMinimization, 7 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 [4, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/4 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 186 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 174 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq183 hnf89 smp98 dnf100 smp100 tf106 neg98 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 27.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 12:57:54,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2022-12-13 12:57:54,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2022-12-13 12:57:54,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c11b99-6d73-4fe0-9c52-d60f15039225/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE