./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 8393723b 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_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/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_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 19:36:39,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:36:39,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:36:39,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:36:39,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:36:39,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:36:39,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:36:39,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:36:39,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:36:39,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:36:39,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:36:39,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:36:39,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:36:39,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:36:39,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:36:39,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:36:39,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:36:39,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:36:39,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:36:39,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:36:39,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:36:39,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:36:39,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:36:39,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:36:39,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:36:39,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:36:39,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:36:39,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:36:39,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:36:39,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:36:39,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:36:39,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:36:39,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:36:39,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:36:39,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:36:39,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:36:39,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:36:39,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:36:39,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:36:39,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:36:39,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:36:39,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 19:36:39,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:36:39,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:36:39,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:36:39,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:36:39,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:36:39,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:36:39,442 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:36:39,443 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:36:39,443 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:36:39,443 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:36:39,444 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:36:39,445 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:36:39,445 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:36:39,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:36:39,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:36:39,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:36:39,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:36:39,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:36:39,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:36:39,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:36:39,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:36:39,447 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:36:39,448 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:36:39,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:36:39,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:36:39,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:36:39,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:36:39,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:36:39,452 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:36:39,452 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_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 [2022-11-18 19:36:39,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:36:39,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:36:39,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:36:39,873 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:36:39,874 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:36:39,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-11-18 19:36:39,971 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/data/afea71589/78a74128fb83406ab53886e30df3e91d/FLAG0002a0877 [2022-11-18 19:36:40,466 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:36:40,466 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-11-18 19:36:40,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/data/afea71589/78a74128fb83406ab53886e30df3e91d/FLAG0002a0877 [2022-11-18 19:36:40,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/data/afea71589/78a74128fb83406ab53886e30df3e91d [2022-11-18 19:36:40,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:36:40,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:36:40,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:36:40,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:36:40,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:36:40,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:36:40" (1/1) ... [2022-11-18 19:36:40,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b0afdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:40, skipping insertion in model container [2022-11-18 19:36:40,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:36:40" (1/1) ... [2022-11-18 19:36:40,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:36:40,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:36:41,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:36:41,140 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:36:41,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:36:41,169 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:36:41,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41 WrapperNode [2022-11-18 19:36:41,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:36:41,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:36:41,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:36:41,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:36:41,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,209 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2022-11-18 19:36:41,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:36:41,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:36:41,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:36:41,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:36:41,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,231 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:36:41,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:36:41,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:36:41,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:36:41,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (1/1) ... [2022-11-18 19:36:41,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:41,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:41,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:41,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:36:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure p [2022-11-18 19:36:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2022-11-18 19:36:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:36:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:36:41,386 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:36:41,388 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:36:41,551 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:36:41,558 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:36:41,558 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:36:41,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:36:41 BoogieIcfgContainer [2022-11-18 19:36:41,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:36:41,577 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:36:41,578 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:36:41,588 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:36:41,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:36:41,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:36:40" (1/3) ... [2022-11-18 19:36:41,591 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@468d903a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:36:41, skipping insertion in model container [2022-11-18 19:36:41,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:36:41,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:41" (2/3) ... [2022-11-18 19:36:41,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@468d903a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:36:41, skipping insertion in model container [2022-11-18 19:36:41,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:36:41,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:36:41" (3/3) ... [2022-11-18 19:36:41,594 INFO L332 chiAutomizerObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex4.c [2022-11-18 19:36:41,670 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:36:41,670 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:36:41,671 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:36:41,671 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:36:41,671 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:36:41,671 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:36:41,671 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:36:41,672 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:36:41,677 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) [2022-11-18 19:36:41,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:36:41,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:36:41,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:36:41,713 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 19:36:41,713 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:36:41,713 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:36:41,714 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) [2022-11-18 19:36:41,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:36:41,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:36:41,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:36:41,717 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 19:36:41,717 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:36:41,727 INFO L748 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 14#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; 16#L28true assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 9#L29true call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 17#pENTRYtrue [2022-11-18 19:36:41,727 INFO L750 eck$LassoCheckResult]: Loop: 17#pENTRYtrue ~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#pENTRYtrue [2022-11-18 19:36:41,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:41,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1356593, now seen corresponding path program 1 times [2022-11-18 19:36:41,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:41,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151052966] [2022-11-18 19:36:41,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:41,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:41,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:41,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:41,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:41,891 INFO L85 PathProgramCache]: Analyzing trace with hash 29913, now seen corresponding path program 1 times [2022-11-18 19:36:41,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:41,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570502351] [2022-11-18 19:36:41,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:41,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:41,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:41,921 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:41,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:41,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1759556521, now seen corresponding path program 1 times [2022-11-18 19:36:41,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:41,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007184368] [2022-11-18 19:36:41,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:41,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:41,973 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:42,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:42,239 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:36:42,245 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:36:42,245 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:36:42,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:36:42,246 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:36:42,246 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,246 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:36:42,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:36:42,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration1_Loop [2022-11-18 19:36:42,247 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:36:42,248 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:36:42,273 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,290 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,308 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,314 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,319 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,323 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,331 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,343 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,432 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:36:42,433 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:36:42,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:42,441 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:42,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:42,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:42,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 19:36:42,474 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:42,474 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:36:42,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:42,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:42,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:42,495 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:42,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:42,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 19:36:42,518 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:42,518 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:36:42,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:42,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:42,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:42,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:42,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:42,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 19:36:42,563 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:42,563 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~m=0} Honda state: {p_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:36:42,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:42,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:42,574 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:42,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:42,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:42,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 19:36:42,619 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:42,619 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~n=0} Honda state: {p_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:36:42,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:42,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:42,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:42,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:42,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:42,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 19:36:42,706 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:42,706 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:36:42,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:42,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:42,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:42,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 19:36:42,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:42,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:42,780 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:42,780 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=0} Honda state: {p_#in~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:36:42,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:42,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:42,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:42,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 19:36:42,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:42,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:42,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:42,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:42,851 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:42,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:36:42,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:42,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 19:36:42,959 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:36:42,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:42,963 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:36:42,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:36:42,964 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:36:42,964 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:36:42,964 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:36:42,964 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:42,964 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:36:42,964 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:36:42,964 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration1_Loop [2022-11-18 19:36:42,964 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:36:42,965 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:36:42,966 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,977 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,984 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,990 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:42,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:43,001 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:43,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:43,023 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:43,100 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:36:43,106 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:36:43,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,111 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 19:36:43,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:43,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:43,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,160 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 19:36:43,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:43,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:43,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,205 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 19:36:43,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:43,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:43,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,238 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 19:36:43,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:43,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:43,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,270 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 19:36:43,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:43,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:43,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,314 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 19:36:43,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:43,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:43,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,357 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 19:36:43,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:43,376 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:43,376 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,392 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 19:36:43,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:43,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:43,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,420 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-18 19:36:43,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,421 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 19:36:43,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,449 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:36:43,450 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:36:43,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,470 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,492 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,505 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:36:43,506 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:36:43,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 19:36:43,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,541 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 19:36:43,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,559 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:36:43,560 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:36:43,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,577 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 19:36:43,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,595 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:36:43,596 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:36:43,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,617 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 19:36:43,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,631 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:36:43,632 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:36:43,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-11-18 19:36:43,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,641 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 19:36:43,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,657 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:36:43,661 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:36:43,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:43,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-11-18 19:36:43,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,671 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 19:36:43,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:43,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:43,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:43,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:43,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:43,687 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:36:43,696 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:36:43,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:43,714 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:36:43,721 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:36:43,721 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:36:43,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:43,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:43,729 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:43,731 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:36:43,731 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:36:43,731 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:36:43,732 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 [] [2022-11-18 19:36:43,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 19:36:43,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:43,745 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:36:43,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:43,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:36:43,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:43,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:36:43,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:44,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:44,173 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 [2022-11-18 19:36:44,176 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) [2022-11-18 19:36:44,446 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. [2022-11-18 19:36:44,449 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 [2022-11-18 19:36:44,458 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) [2022-11-18 19:36:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-18 19:36:44,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-18 19:36:44,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:36:44,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-18 19:36:44,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:36:44,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-18 19:36:44,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:36:44,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2022-11-18 19:36:44,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:36:44,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 21 states and 24 transitions. [2022-11-18 19:36:44,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-18 19:36:44,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-18 19:36:44,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2022-11-18 19:36:44,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:36:44,493 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-18 19:36:44,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2022-11-18 19:36:44,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2022-11-18 19:36:44,526 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) [2022-11-18 19:36:44,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-18 19:36:44,529 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-18 19:36:44,529 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-18 19:36:44,530 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:36:44,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2022-11-18 19:36:44,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:36:44,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:36:44,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:36:44,532 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:36:44,532 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 19:36:44,532 INFO L748 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 133#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; 134#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);< 135#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 124#L13 assume !(~r > 0); 126#L16 [2022-11-18 19:36:44,533 INFO L750 eck$LassoCheckResult]: Loop: 126#L16 assume ~n > 0; 129#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 131#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 137#L13 assume !(~r > 0); 126#L16 [2022-11-18 19:36:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:44,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1303685879, now seen corresponding path program 1 times [2022-11-18 19:36:44,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:44,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166039678] [2022-11-18 19:36:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:44,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:44,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:44,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:44,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:44,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1221437, now seen corresponding path program 1 times [2022-11-18 19:36:44,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:44,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398235465] [2022-11-18 19:36:44,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:44,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:44,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:44,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:44,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:44,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1125326029, now seen corresponding path program 1 times [2022-11-18 19:36:44,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:44,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341601040] [2022-11-18 19:36:44,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:44,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:44,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:44,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:44,763 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:36:44,763 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:36:44,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:36:44,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:36:44,764 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:36:44,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:44,764 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:36:44,764 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:36:44,764 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration2_Loop [2022-11-18 19:36:44,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:36:44,765 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:36:44,768 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:44,772 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:44,777 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:44,779 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:44,792 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:44,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-18 19:36:44,888 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:36:44,888 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:36:44,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:44,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:44,890 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:44,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:44,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:44,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 19:36:44,927 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:44,927 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:36:44,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:44,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:44,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:44,938 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:44,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:44,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:44,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 19:36:44,967 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:44,967 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:36:44,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:44,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:44,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:44,977 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:44,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:44,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:44,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 19:36:45,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:45,011 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:36:45,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:45,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:45,022 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:45,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:45,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:45,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 19:36:45,058 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:36:45,058 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: [] [2022-11-18 19:36:45,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:45,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:45,065 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:45,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:45,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:45,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 19:36:45,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:45,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:45,121 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:45,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:36:45,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:45,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 19:36:45,438 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:36:45,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-18 19:36:45,441 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:36:45,441 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:36:45,441 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:36:45,441 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:36:45,442 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:36:45,442 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,442 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:36:45,442 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:36:45,442 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration2_Loop [2022-11-18 19:36:45,442 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:36:45,442 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:36:45,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:45,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:45,452 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:45,463 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:45,466 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:45,557 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:36:45,557 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:36:45,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:45,559 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:45,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-18 19:36:45,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:45,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:45,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:45,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:45,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:45,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:45,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:45,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:45,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:45,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:45,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:45,608 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:45,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:45,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-18 19:36:45,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:45,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:45,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:45,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:45,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:45,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:45,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:45,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:45,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:45,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:45,650 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:45,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:45,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:45,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:45,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:45,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:45,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:45,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-18 19:36:45,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:45,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:45,686 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:45,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:45,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:45,697 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:45,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:45,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-18 19:36:45,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:45,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:45,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:45,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:45,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:45,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:45,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:45,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:45,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:45,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:45,747 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:45,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:45,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:45,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:45,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:45,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:45,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:45,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:45,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:45,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-18 19:36:45,786 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:36:45,791 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:36:45,791 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 19:36:45,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:45,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:45,793 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:45,799 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:36:45,800 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:36:45,800 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:36:45,800 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_~n) = 1*p_~n Supporting invariants [] [2022-11-18 19:36:45,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-18 19:36:45,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:45,809 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:36:45,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:45,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:36:45,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:45,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:36:45,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:45,970 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 [2022-11-18 19:36:45,970 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) [2022-11-18 19:36:46,010 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. [2022-11-18 19:36:46,011 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 [2022-11-18 19:36:46,011 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) [2022-11-18 19:36:46,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-11-18 19:36:46,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-18 19:36:46,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:36:46,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2022-11-18 19:36:46,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:36:46,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 8 letters. [2022-11-18 19:36:46,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:36:46,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2022-11-18 19:36:46,016 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:36:46,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 25 transitions. [2022-11-18 19:36:46,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-18 19:36:46,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-18 19:36:46,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2022-11-18 19:36:46,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:36:46,020 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-18 19:36:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2022-11-18 19:36:46,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-11-18 19:36:46,023 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) [2022-11-18 19:36:46,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-18 19:36:46,029 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-18 19:36:46,029 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-18 19:36:46,030 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:36:46,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2022-11-18 19:36:46,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:36:46,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:36:46,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:36:46,033 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:46,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:36:46,034 INFO L748 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 238#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; 239#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);< 240#pENTRY ~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#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 242#L13 assume ~r > 0; 234#L14 [2022-11-18 19:36:46,034 INFO L750 eck$LassoCheckResult]: Loop: 234#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 235#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 244#L13 assume ~r > 0; 234#L14 [2022-11-18 19:36:46,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:46,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1125326032, now seen corresponding path program 1 times [2022-11-18 19:36:46,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:46,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680080156] [2022-11-18 19:36:46,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:46,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:46,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:46,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:46,072 INFO L85 PathProgramCache]: Analyzing trace with hash 57663, now seen corresponding path program 2 times [2022-11-18 19:36:46,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:46,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431630904] [2022-11-18 19:36:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:46,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:46,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:46,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:46,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:46,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1926921136, now seen corresponding path program 1 times [2022-11-18 19:36:46,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:46,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814355532] [2022-11-18 19:36:46,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:46,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:46,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:46,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:46,262 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:36:46,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:36:46,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:36:46,263 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:36:46,263 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:36:46,263 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:46,263 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:36:46,263 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:36:46,263 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration3_Loop [2022-11-18 19:36:46,263 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:36:46,263 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:36:46,265 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:46,277 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:46,280 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:46,287 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:46,290 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:46,352 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:36:46,352 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:36:46,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:46,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:46,353 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:46,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:46,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:46,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-18 19:36:46,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:46,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:46,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:46,422 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:46,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-18 19:36:46,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:36:46,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:58,583 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-11-18 19:36:58,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:58,591 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:36:58,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:36:58,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:36:58,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:36:58,592 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:36:58,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:58,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:36:58,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:36:58,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration3_Loop [2022-11-18 19:36:58,592 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:36:58,593 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:36:58,594 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:58,601 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:58,622 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:58,629 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:58,632 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:58,717 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:36:58,717 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:36:58,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:58,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:58,723 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:58,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:58,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:58,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:58,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:58,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:58,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:58,782 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:58,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:58,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-18 19:36:58,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:58,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:58,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:58,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:58,827 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:58,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-18 19:36:58,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:58,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:58,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:58,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:58,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:58,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:58,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:58,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:58,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:58,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:58,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:58,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:58,876 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:58,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:58,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:58,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:58,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:58,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:58,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:58,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-18 19:36:58,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:58,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:58,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:58,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:58,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:58,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:58,913 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:58,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:58,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:58,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:58,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:58,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:58,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:58,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:58,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:58,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-18 19:36:58,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:58,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:58,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:58,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:58,959 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:58,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-18 19:36:58,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:58,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:58,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:58,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:58,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:58,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:36:58,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:36:58,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:58,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:58,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:58,991 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-18 19:36:58,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:58,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:58,992 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:59,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:59,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:59,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-18 19:36:59,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:59,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:59,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:59,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:59,027 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:36:59,029 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:36:59,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:59,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:36:59,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:59,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:59,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:59,044 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:59,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:36:59,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:36:59,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:36:59,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:36:59,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:36:59,066 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:36:59,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-18 19:36:59,070 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:36:59,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:36:59,086 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:36:59,098 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-18 19:36:59,098 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-18 19:36:59,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:59,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:59,100 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:59,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:36:59,110 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:36:59,110 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:36:59,110 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 [] [2022-11-18 19:36:59,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-18 19:36:59,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:59,116 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:36:59,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:59,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:36:59,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:59,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:36:59,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:59,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:59,509 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 [2022-11-18 19:36:59,509 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) [2022-11-18 19:36:59,616 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. [2022-11-18 19:36:59,617 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 [2022-11-18 19:36:59,618 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) [2022-11-18 19:36:59,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-18 19:36:59,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-18 19:36:59,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:36:59,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-18 19:36:59,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:36:59,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-18 19:36:59,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:36:59,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 51 transitions. [2022-11-18 19:36:59,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:36:59,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 45 transitions. [2022-11-18 19:36:59,623 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-11-18 19:36:59,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-18 19:36:59,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2022-11-18 19:36:59,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:36:59,624 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-11-18 19:36:59,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2022-11-18 19:36:59,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2022-11-18 19:36:59,627 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) [2022-11-18 19:36:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2022-11-18 19:36:59,628 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-11-18 19:36:59,628 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-11-18 19:36:59,628 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:36:59,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2022-11-18 19:36:59,629 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 19:36:59,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:36:59,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:36:59,630 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:59,631 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 19:36:59,631 INFO L748 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 371#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; 372#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#pENTRY ~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#pENTRY ~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#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 385#L13 assume !(~r > 0); 379#L16 [2022-11-18 19:36:59,631 INFO L750 eck$LassoCheckResult]: Loop: 379#L16 assume ~n > 0; 364#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 366#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 380#L13 assume !(~r > 0); 379#L16 [2022-11-18 19:36:59,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:59,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1926921139, now seen corresponding path program 2 times [2022-11-18 19:36:59,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:59,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605050514] [2022-11-18 19:36:59,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:59,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:59,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:59,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:59,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:59,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1221437, now seen corresponding path program 2 times [2022-11-18 19:36:59,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:59,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398674965] [2022-11-18 19:36:59,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:59,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:59,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:59,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:59,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:59,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1157887471, now seen corresponding path program 3 times [2022-11-18 19:36:59,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:59,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530080786] [2022-11-18 19:36:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:59,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:59,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:59,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:59,808 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:36:59,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:36:59,808 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:36:59,808 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:36:59,808 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:36:59,808 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:59,809 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:36:59,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:36:59,809 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration4_Loop [2022-11-18 19:36:59,809 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:36:59,809 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:36:59,810 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:59,818 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:59,820 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:59,823 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:59,834 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:36:59,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:36:59,909 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:36:59,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:59,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:59,911 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:59,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:36:59,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:59,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-18 19:36:59,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:59,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:36:59,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:59,968 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:59,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:36:59,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:36:59,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-18 19:37:00,306 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:37:00,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:00,312 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:37:00,312 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:37:00,312 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:37:00,312 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:37:00,312 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:37:00,312 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:00,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:37:00,312 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:37:00,313 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration4_Loop [2022-11-18 19:37:00,313 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:37:00,313 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:37:00,314 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:00,326 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:00,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:00,342 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:00,344 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:00,419 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:37:00,420 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:37:00,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:00,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:00,421 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:00,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:00,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-18 19:37:00,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:00,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:00,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:00,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:00,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:00,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:00,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:00,453 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:37:00,458 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:37:00,458 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 19:37:00,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:00,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:00,462 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:00,464 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:37:00,464 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:37:00,464 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:37:00,464 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_~n) = 1*p_~n Supporting invariants [] [2022-11-18 19:37:00,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-18 19:37:00,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:00,469 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:37:00,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:00,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:37:00,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:00,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:00,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:00,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:37:00,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:00,636 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 [2022-11-18 19:37:00,636 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) [2022-11-18 19:37:00,671 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. [2022-11-18 19:37:00,671 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 [2022-11-18 19:37:00,672 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) [2022-11-18 19:37:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-11-18 19:37:00,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 13 letters. Loop has 4 letters. [2022-11-18 19:37:00,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:00,673 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 19:37:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:00,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:37:00,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:00,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:37:00,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:00,800 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 [2022-11-18 19:37:00,800 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) [2022-11-18 19:37:00,837 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. [2022-11-18 19:37:00,838 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 [2022-11-18 19:37:00,841 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) [2022-11-18 19:37:00,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-18 19:37:00,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2022-11-18 19:37:00,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:00,842 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 19:37:00,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:00,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:37:00,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:00,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:37:00,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:00,976 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 [2022-11-18 19:37:00,977 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) [2022-11-18 19:37:00,998 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. [2022-11-18 19:37:00,999 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 [2022-11-18 19:37:01,000 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) [2022-11-18 19:37:01,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2022-11-18 19:37:01,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 4 letters. [2022-11-18 19:37:01,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:01,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 4 letters. [2022-11-18 19:37:01,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:01,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2022-11-18 19:37:01,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:01,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 68 transitions. [2022-11-18 19:37:01,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-18 19:37:01,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 39 states and 47 transitions. [2022-11-18 19:37:01,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-18 19:37:01,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-18 19:37:01,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 47 transitions. [2022-11-18 19:37:01,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:37:01,011 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 47 transitions. [2022-11-18 19:37:01,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 47 transitions. [2022-11-18 19:37:01,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 24. [2022-11-18 19:37:01,015 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) [2022-11-18 19:37:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-18 19:37:01,016 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-18 19:37:01,016 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-18 19:37:01,017 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 19:37:01,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2022-11-18 19:37:01,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 19:37:01,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:37:01,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:37:01,019 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:01,019 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2022-11-18 19:37:01,019 INFO L748 eck$LassoCheckResult]: Stem: 767#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 768#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; 769#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#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 760#L13 assume ~r > 0; 758#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 770#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 757#L13 assume !(~r > 0); 759#L16 [2022-11-18 19:37:01,019 INFO L750 eck$LassoCheckResult]: Loop: 759#L16 assume ~n > 0; 763#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 776#pENTRY ~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#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 774#L13 assume !(~r > 0); 759#L16 [2022-11-18 19:37:01,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:01,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1283297937, now seen corresponding path program 1 times [2022-11-18 19:37:01,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:01,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415721496] [2022-11-18 19:37:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:01,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:01,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:01,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:01,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:01,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2028029801, now seen corresponding path program 1 times [2022-11-18 19:37:01,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:01,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407255091] [2022-11-18 19:37:01,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:01,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:01,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:01,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:01,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:01,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1308917189, now seen corresponding path program 4 times [2022-11-18 19:37:01,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:01,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612296494] [2022-11-18 19:37:01,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:01,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:01,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:01,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:01,374 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:37:01,375 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:37:01,375 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:37:01,375 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:37:01,375 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:37:01,375 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:01,375 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:37:01,375 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:37:01,375 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration5_Loop [2022-11-18 19:37:01,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:37:01,376 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:37:01,377 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:01,380 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:01,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:01,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:01,504 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:37:01,504 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:37:01,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:01,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:01,507 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:01,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:01,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:01,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-18 19:37:01,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:37:01,547 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:37:01,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:01,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:01,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:01,552 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:01,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:01,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:01,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-18 19:37:01,587 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:37:01,587 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:37:01,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:01,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:01,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:01,594 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:01,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:01,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:01,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-18 19:37:01,631 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:37:01,631 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:37:01,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:01,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:01,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:01,636 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:01,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:01,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:01,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-18 19:37:01,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2022-11-18 19:37:01,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:01,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:01,687 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:01,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-11-18 19:37:01,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:37:01,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:04,990 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:37:04,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2022-11-18 19:37:04,995 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:37:04,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:37:04,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:37:04,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:37:04,996 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:37:04,996 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:04,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:37:04,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:37:04,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration5_Loop [2022-11-18 19:37:04,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:37:04,996 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:37:04,997 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:05,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:05,020 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:05,023 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:05,150 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:37:05,150 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:37:05,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:05,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:05,151 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:05,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:05,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:05,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:05,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:05,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:05,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:05,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:05,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:05,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-11-18 19:37:05,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:05,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:05,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:05,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:05,195 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:05,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:05,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-11-18 19:37:05,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:05,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:05,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:05,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:05,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:05,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:05,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:05,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:05,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:05,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:05,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:05,236 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:05,239 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:05,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:05,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:05,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:05,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:05,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:05,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:05,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:05,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-11-18 19:37:05,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:05,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:05,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:05,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:05,278 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:05,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:05,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:05,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:05,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:05,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:05,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:05,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-11-18 19:37:05,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:05,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:05,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:05,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:05,322 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-18 19:37:05,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:05,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:05,324 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:05,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:05,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-11-18 19:37:05,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:05,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:05,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:05,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:05,339 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:37:05,340 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:37:05,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:05,350 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:05,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:05,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:05,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:05,355 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:05,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-11-18 19:37:05,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:05,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:05,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:05,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:05,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:05,370 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:37:05,370 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:37:05,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:05,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:05,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-11-18 19:37:05,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:05,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:05,376 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:05,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:05,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-11-18 19:37:05,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:05,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:05,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:05,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:05,403 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:37:05,404 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:37:05,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:05,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:05,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:05,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:05,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:05,429 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:05,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:05,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-11-18 19:37:05,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:05,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:05,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:05,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:05,454 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:37:05,457 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:37:05,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:05,469 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:37:05,478 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-18 19:37:05,478 INFO L444 ModelExtractionUtils]: 10 out of 15 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 19:37:05,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:05,479 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:05,483 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:37:05,483 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:37:05,483 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:37:05,483 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 [] [2022-11-18 19:37:05,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-11-18 19:37:05,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:05,489 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:37:05,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:05,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:05,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:37:05,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:05,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 19:37:05,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:05,945 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 [2022-11-18 19:37:05,945 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) [2022-11-18 19:37:06,298 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. [2022-11-18 19:37:06,300 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 [2022-11-18 19:37:06,301 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) [2022-11-18 19:37:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2022-11-18 19:37:06,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 9 letters. Loop has 7 letters. [2022-11-18 19:37:06,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:06,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 16 letters. Loop has 7 letters. [2022-11-18 19:37:06,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:06,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 9 letters. Loop has 14 letters. [2022-11-18 19:37:06,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:06,303 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 110 transitions. [2022-11-18 19:37:06,304 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-11-18 19:37:06,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 77 states and 93 transitions. [2022-11-18 19:37:06,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-11-18 19:37:06,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-11-18 19:37:06,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 93 transitions. [2022-11-18 19:37:06,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:37:06,306 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 93 transitions. [2022-11-18 19:37:06,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 93 transitions. [2022-11-18 19:37:06,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 52. [2022-11-18 19:37:06,314 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) [2022-11-18 19:37:06,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2022-11-18 19:37:06,319 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-11-18 19:37:06,319 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-11-18 19:37:06,319 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 19:37:06,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 64 transitions. [2022-11-18 19:37:06,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-11-18 19:37:06,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:37:06,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:37:06,322 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:06,324 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:37:06,324 INFO L748 eck$LassoCheckResult]: Stem: 989#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 990#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; 991#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);< 997#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1019#L13 assume ~r > 0; 993#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 992#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 994#L13 assume !(~r > 0); 999#L16 assume ~n > 0; 988#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1008#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1000#L13 assume ~r > 0; 977#L14 [2022-11-18 19:37:06,324 INFO L750 eck$LassoCheckResult]: Loop: 977#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 998#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 976#L13 assume ~r > 0; 977#L14 [2022-11-18 19:37:06,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:06,325 INFO L85 PathProgramCache]: Analyzing trace with hash 681879976, now seen corresponding path program 5 times [2022-11-18 19:37:06,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:06,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370801403] [2022-11-18 19:37:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:06,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:06,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:06,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:06,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:06,362 INFO L85 PathProgramCache]: Analyzing trace with hash 57663, now seen corresponding path program 3 times [2022-11-18 19:37:06,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:06,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296880327] [2022-11-18 19:37:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:06,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:06,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:06,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:06,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1308917192, now seen corresponding path program 6 times [2022-11-18 19:37:06,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:06,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424180531] [2022-11-18 19:37:06,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:06,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:06,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:06,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:06,527 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:37:06,527 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:37:06,527 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:37:06,527 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:37:06,527 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:37:06,528 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:06,528 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:37:06,528 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:37:06,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration6_Loop [2022-11-18 19:37:06,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:37:06,528 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:37:06,529 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:06,531 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:06,534 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:06,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:06,569 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:06,636 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:37:06,636 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:37:06,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:06,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:06,638 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:06,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:06,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:06,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-11-18 19:37:06,675 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:37:06,675 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:37:06,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:06,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:06,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:06,682 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:06,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:06,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:06,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-11-18 19:37:06,727 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:37:06,727 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:37:06,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:06,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:06,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:06,732 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:06,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:06,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:06,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-11-18 19:37:06,775 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:37:06,776 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: [] [2022-11-18 19:37:06,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:06,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:06,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:06,781 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:06,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:06,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:06,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-11-18 19:37:06,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:06,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:06,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:06,841 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:06,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:37:06,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:06,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-11-18 19:37:18,875 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-11-18 19:37:18,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:18,882 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:37:18,882 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:37:18,882 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:37:18,882 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:37:18,882 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:37:18,882 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:18,882 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:37:18,882 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:37:18,883 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration6_Loop [2022-11-18 19:37:18,883 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:37:18,883 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:37:18,884 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:18,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:18,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:18,905 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:18,913 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:18,993 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:37:18,993 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:37:18,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:18,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:18,998 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:19,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:19,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-11-18 19:37:19,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:19,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:19,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:19,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:19,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:19,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:19,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:19,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:19,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:19,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:19,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:19,029 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:19,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-11-18 19:37:19,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:19,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:19,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:19,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:19,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:19,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:19,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:19,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:19,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:19,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:19,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:19,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:19,075 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:19,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:19,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:19,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:19,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:19,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:19,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:19,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-11-18 19:37:19,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:19,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:19,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:19,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:19,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:19,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:19,115 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:19,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:19,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2022-11-18 19:37:19,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:19,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:19,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:19,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:19,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:19,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:19,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:19,154 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:19,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:19,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:19,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:19,160 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:19,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:19,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:19,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:19,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:19,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:19,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:19,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:19,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:19,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2022-11-18 19:37:19,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:19,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:19,195 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-18 19:37:19,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:19,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:19,196 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:19,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:19,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2022-11-18 19:37:19,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:19,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:19,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:19,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:19,219 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:37:19,220 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:37:19,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:19,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:19,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:19,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:19,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:19,240 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:19,243 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:19,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2022-11-18 19:37:19,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:19,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:19,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:19,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:19,257 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:37:19,258 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:37:19,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:19,274 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:19,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:19,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:19,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:19,279 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:19,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:19,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2022-11-18 19:37:19,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:19,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:19,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:19,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:19,297 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 19:37:19,299 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 19:37:19,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:19,318 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:37:19,330 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-18 19:37:19,330 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-18 19:37:19,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:19,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:19,332 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:19,335 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:37:19,335 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:37:19,335 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:37:19,336 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 [] [2022-11-18 19:37:19,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2022-11-18 19:37:19,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:19,340 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:37:19,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:19,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:37:19,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:19,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:37:19,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:19,605 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 [2022-11-18 19:37:19,605 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) [2022-11-18 19:37:19,725 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. [2022-11-18 19:37:19,729 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 [2022-11-18 19:37:19,730 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) [2022-11-18 19:37:19,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-18 19:37:19,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-18 19:37:19,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:19,732 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 19:37:19,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:19,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:37:19,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:19,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:37:19,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:19,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:20,018 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 [2022-11-18 19:37:20,018 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) [2022-11-18 19:37:20,120 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. [2022-11-18 19:37:20,120 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 [2022-11-18 19:37:20,121 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) [2022-11-18 19:37:20,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-18 19:37:20,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-18 19:37:20,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:20,122 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 19:37:20,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:37:20,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:37:20,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:20,394 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 [2022-11-18 19:37:20,395 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) [2022-11-18 19:37:20,496 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. [2022-11-18 19:37:20,498 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 [2022-11-18 19:37:20,498 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) [2022-11-18 19:37:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-18 19:37:20,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-18 19:37:20,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:20,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-18 19:37:20,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:20,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-18 19:37:20,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:20,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 114 transitions. [2022-11-18 19:37:20,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-18 19:37:20,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 62 states and 78 transitions. [2022-11-18 19:37:20,508 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-18 19:37:20,508 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-18 19:37:20,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 78 transitions. [2022-11-18 19:37:20,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:37:20,509 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-11-18 19:37:20,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 78 transitions. [2022-11-18 19:37:20,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 41. [2022-11-18 19:37:20,516 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) [2022-11-18 19:37:20,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2022-11-18 19:37:20,517 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2022-11-18 19:37:20,517 INFO L428 stractBuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2022-11-18 19:37:20,517 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 19:37:20,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 51 transitions. [2022-11-18 19:37:20,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-11-18 19:37:20,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:37:20,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:37:20,519 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:20,520 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2022-11-18 19:37:20,520 INFO L748 eck$LassoCheckResult]: Stem: 1490#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1491#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; 1492#L28 assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0; 1480#L29 call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);< 1493#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1479#L13 assume !(~r > 0); 1481#L16 assume ~n > 0; 1485#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1519#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1512#L13 assume !(~r > 0); 1486#L16 assume ~n > 0; 1487#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1516#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1517#L13 assume ~r > 0; 1503#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 1498#pENTRY [2022-11-18 19:37:20,520 INFO L750 eck$LassoCheckResult]: Loop: 1498#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1506#L13 assume !(~r > 0); 1505#L16 assume ~n > 0; 1496#L17 call #t~ret1 := p(~r, ~n - 1, ~m);< 1502#pENTRY ~m := #in~m;~n := #in~n;~r := #in~r; 1500#L13 assume ~r > 0; 1495#L14 call #t~ret0 := p(~m, ~r - 1, ~n);< 1498#pENTRY [2022-11-18 19:37:20,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash 708644913, now seen corresponding path program 7 times [2022-11-18 19:37:20,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:20,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424760128] [2022-11-18 19:37:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:20,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,654 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:20,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:20,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424760128] [2022-11-18 19:37:20,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424760128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:20,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825372063] [2022-11-18 19:37:20,655 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 19:37:20,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:20,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:20,659 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:20,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2022-11-18 19:37:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:37:20,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:20,726 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:20,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:37:20,759 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:20,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825372063] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:37:20,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:37:20,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2022-11-18 19:37:20,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414822189] [2022-11-18 19:37:20,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:37:20,765 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:37:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1923820573, now seen corresponding path program 2 times [2022-11-18 19:37:20,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:20,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007137267] [2022-11-18 19:37:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:20,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:20,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:20,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:20,946 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:37:20,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:37:20,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:37:20,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:37:20,947 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:37:20,947 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:20,947 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:37:20,947 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:37:20,947 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration7_Loop [2022-11-18 19:37:20,947 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:37:20,947 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:37:20,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:20,953 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:20,966 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:20,968 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:20,971 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:20,973 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:20,976 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:21,028 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:37:21,028 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:37:21,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:21,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:21,030 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:21,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2022-11-18 19:37:21,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:21,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:21,047 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:37:21,047 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~n=0} Honda state: {p_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 19:37:21,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2022-11-18 19:37:21,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:21,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:21,051 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:21,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2022-11-18 19:37:21,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:37:21,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:21,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2022-11-18 19:37:21,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:21,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:21,076 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:21,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2022-11-18 19:37:21,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:37:21,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:37:21,192 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:37:21,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2022-11-18 19:37:21,196 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:37:21,196 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:37:21,196 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:37:21,196 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:37:21,196 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:37:21,196 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:21,196 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:37:21,196 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:37:21,197 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration7_Loop [2022-11-18 19:37:21,197 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:37:21,197 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:37:21,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:21,208 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:21,224 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:21,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:21,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:21,233 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:21,236 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:37:21,291 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:37:21,292 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:37:21,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:21,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:21,293 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:21,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:21,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2022-11-18 19:37:21,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:21,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:21,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:21,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:21,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:21,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:21,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:21,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:37:21,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2022-11-18 19:37:21,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:21,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:21,326 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:21,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2022-11-18 19:37:21,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:37:21,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:37:21,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:37:21,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:37:21,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:37:21,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:37:21,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:37:21,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:37:21,350 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:37:21,355 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-18 19:37:21,356 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-18 19:37:21,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:37:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:21,357 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:21,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2022-11-18 19:37:21,360 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:37:21,360 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:37:21,360 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:37:21,360 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_#in~m) = 1*p_#in~m Supporting invariants [] [2022-11-18 19:37:21,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:21,363 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:37:21,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:21,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 19:37:21,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:21,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 19:37:21,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:21,555 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 [2022-11-18 19:37:21,556 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) [2022-11-18 19:37:21,669 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. [2022-11-18 19:37:21,669 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 [2022-11-18 19:37:21,670 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) [2022-11-18 19:37:21,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2022-11-18 19:37:21,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 15 letters. Loop has 7 letters. [2022-11-18 19:37:21,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:21,671 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 19:37:21,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:21,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 19:37:21,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:21,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 19:37:21,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:37:21,843 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 [2022-11-18 19:37:21,843 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) [2022-11-18 19:37:21,981 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. [2022-11-18 19:37:21,981 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 [2022-11-18 19:37:21,982 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) [2022-11-18 19:37:21,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 23 transitions. [2022-11-18 19:37:21,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 15 letters. Loop has 7 letters. [2022-11-18 19:37:21,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:21,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 22 letters. Loop has 7 letters. [2022-11-18 19:37:21,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:21,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 15 letters. Loop has 14 letters. [2022-11-18 19:37:21,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:37:21,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 254 transitions. [2022-11-18 19:37:21,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-18 19:37:21,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 187 states and 243 transitions. [2022-11-18 19:37:21,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-11-18 19:37:21,988 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-18 19:37:21,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 243 transitions. [2022-11-18 19:37:21,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:37:21,989 INFO L218 hiAutomatonCegarLoop]: Abstraction has 187 states and 243 transitions. [2022-11-18 19:37:21,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 243 transitions. [2022-11-18 19:37:21,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 105. [2022-11-18 19:37:21,996 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) [2022-11-18 19:37:21,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2022-11-18 19:37:21,997 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 140 transitions. [2022-11-18 19:37:21,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:21,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:37:22,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:37:22,001 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) [2022-11-18 19:37:22,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:22,062 INFO L93 Difference]: Finished difference Result 109 states and 126 transitions. [2022-11-18 19:37:22,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 126 transitions. [2022-11-18 19:37:22,064 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 19:37:22,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 0 states and 0 transitions. [2022-11-18 19:37:22,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 19:37:22,065 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 19:37:22,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 19:37:22,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:22,065 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:37:22,065 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:37:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:37:22,066 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:37:22,066 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 19:37:22,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:37:22,067 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 19:37:22,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 19:37:22,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:37:22 BoogieIcfgContainer [2022-11-18 19:37:22,075 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:37:22,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:37:22,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:37:22,076 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:37:22,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:36:41" (3/4) ... [2022-11-18 19:37:22,080 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:37:22,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:37:22,081 INFO L158 Benchmark]: Toolchain (without parser) took 41225.70ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 63.7MB in the beginning and 73.0MB in the end (delta: -9.3MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2022-11-18 19:37:22,081 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:22,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.84ms. Allocated memory is still 94.4MB. Free memory was 63.5MB in the beginning and 71.7MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:37:22,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.87ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 70.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:22,082 INFO L158 Benchmark]: Boogie Preprocessor took 22.63ms. Allocated memory is still 94.4MB. Free memory was 70.4MB in the beginning and 69.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:37:22,082 INFO L158 Benchmark]: RCFGBuilder took 341.61ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 60.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:37:22,083 INFO L158 Benchmark]: BuchiAutomizer took 40497.41ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 60.5MB in the beginning and 73.0MB in the end (delta: -12.4MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2022-11-18 19:37:22,083 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 157.3MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:22,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.84ms. Allocated memory is still 94.4MB. Free memory was 63.5MB in the beginning and 71.7MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.87ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 70.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.63ms. Allocated memory is still 94.4MB. Free memory was 70.4MB in the beginning and 69.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 341.61ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 60.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 40497.41ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 60.5MB in the beginning and 73.0MB in the end (delta: -12.4MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 157.3MB. Free memory is still 73.0MB. 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 40.4s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 35.5s. Construction of modules took 0.3s. Büchi inclusion checks took 4.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 7. Automata minimization 0.1s 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, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 186 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 0.3s 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: 40ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 29.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 19:37:22,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2022-11-18 19:37:22,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2022-11-18 19:37:22,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801b8ae2-67f9-472d-b410-60488e71350f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE