./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_7-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_7-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R --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 32bit --witnessprinter.graph.data.programhash 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb --- 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-38b53e6 [2022-11-25 17:15:16,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:15:16,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:15:16,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:15:16,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:15:16,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:15:16,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:15:16,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:15:16,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:15:16,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:15:16,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:15:16,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:15:16,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:15:16,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:15:16,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:15:16,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:15:16,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:15:16,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:15:16,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:15:16,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:15:16,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:15:16,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:15:16,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:15:16,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:15:16,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:15:16,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:15:16,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:15:16,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:15:16,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:15:16,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:15:16,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:15:16,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:15:16,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:15:16,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:15:16,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:15:16,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:15:16,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:15:16,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:15:16,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:15:16,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:15:16,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:15:16,517 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-25 17:15:16,543 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:15:16,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:15:16,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:15:16,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:15:16,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:15:16,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:15:16,547 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:15:16,547 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 17:15:16,548 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 17:15:16,548 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 17:15:16,548 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 17:15:16,549 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 17:15:16,549 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 17:15:16,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:15:16,549 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:15:16,550 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:15:16,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:15:16,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:15:16,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:15:16,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 17:15:16,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 17:15:16,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 17:15:16,552 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:15:16,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:15:16,552 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 17:15:16,553 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:15:16,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 17:15:16,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:15:16,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:15:16,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:15:16,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:15:16,555 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 17:15:16,556 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_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb [2022-11-25 17:15:16,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:15:16,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:15:16,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:15:16,960 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:15:16,961 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:15:16,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2022-11-25 17:15:20,328 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:15:20,519 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:15:20,520 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2022-11-25 17:15:20,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/data/3958bafec/48be391f859542a7b4c514a4cd9bfcfa/FLAG86d36154e [2022-11-25 17:15:20,544 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/data/3958bafec/48be391f859542a7b4c514a4cd9bfcfa [2022-11-25 17:15:20,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:15:20,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:15:20,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:20,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:15:20,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:15:20,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bfc4ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20, skipping insertion in model container [2022-11-25 17:15:20,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:15:20,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:15:20,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/sv-benchmarks/c/recursive-simple/fibo_7-1.c[741,754] [2022-11-25 17:15:20,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:20,809 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:15:20,822 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/sv-benchmarks/c/recursive-simple/fibo_7-1.c[741,754] [2022-11-25 17:15:20,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:20,838 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:15:20,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20 WrapperNode [2022-11-25 17:15:20,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:20,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:15:20,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:15:20,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:15:20,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,869 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-25 17:15:20,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:15:20,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:15:20,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:15:20,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:15:20,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:15:20,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:15:20,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:15:20,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:15:20,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (1/1) ... [2022-11-25 17:15:20,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:20,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:20,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:20,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 17:15:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:15:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:15:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:15:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:15:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2022-11-25 17:15:20,973 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2022-11-25 17:15:21,043 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:15:21,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:15:21,157 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:15:21,165 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:15:21,165 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:15:21,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:21 BoogieIcfgContainer [2022-11-25 17:15:21,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:15:21,169 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 17:15:21,169 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 17:15:21,174 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 17:15:21,175 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:15:21,176 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 05:15:20" (1/3) ... [2022-11-25 17:15:21,177 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79f0bc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:15:21, skipping insertion in model container [2022-11-25 17:15:21,177 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:15:21,178 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:20" (2/3) ... [2022-11-25 17:15:21,178 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79f0bc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:15:21, skipping insertion in model container [2022-11-25 17:15:21,178 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:15:21,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:21" (3/3) ... [2022-11-25 17:15:21,180 INFO L332 chiAutomizerObserver]: Analyzing ICFG fibo_7-1.c [2022-11-25 17:15:21,244 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 17:15:21,244 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 17:15:21,245 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 17:15:21,245 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 17:15:21,245 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 17:15:21,245 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 17:15:21,246 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 17:15:21,246 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 17:15:21,251 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) [2022-11-25 17:15:21,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:15:21,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:15:21,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:15:21,294 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 17:15:21,294 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 17:15:21,294 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 17:15:21,294 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) [2022-11-25 17:15:21,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:15:21,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:15:21,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:15:21,298 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 17:15:21,298 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 17:15:21,305 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 5#L27true call main_#t~ret6#1 := fibo(main_~x~0#1);< 6#fiboENTRYtrue [2022-11-25 17:15:21,306 INFO L750 eck$LassoCheckResult]: Loop: 6#fiboENTRYtrue ~n := #in~n; 7#L8true assume !(~n < 1); 9#L10true assume !(1 == ~n); 14#L13true call #t~ret4 := fibo(~n - 1);< 6#fiboENTRYtrue [2022-11-25 17:15:21,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:21,312 INFO L85 PathProgramCache]: Analyzing trace with hash 29883, now seen corresponding path program 1 times [2022-11-25 17:15:21,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:21,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139516465] [2022-11-25 17:15:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:21,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:21,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:15:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:21,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:15:21,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:21,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1450956, now seen corresponding path program 1 times [2022-11-25 17:15:21,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:21,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293727011] [2022-11-25 17:15:21,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:21,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:21,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:15:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:21,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:15:21,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:21,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1828301702, now seen corresponding path program 1 times [2022-11-25 17:15:21,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:21,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448816852] [2022-11-25 17:15:21,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:21,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:21,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:15:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:21,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:15:21,659 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:21,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:21,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:21,660 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:21,660 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:15:21,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:21,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:21,661 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:21,661 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration1_Loop [2022-11-25 17:15:21,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:21,661 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:21,709 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:21,734 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:21,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:21,743 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:21,757 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:21,834 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:21,835 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:15:21,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:21,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:21,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:21,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:21,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:21,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-25 17:15:21,907 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:15:21,907 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:15:21,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:21,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:21,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:21,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:21,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-25 17:15:21,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:21,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:21,956 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:15:21,956 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:15:21,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:21,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:21,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:21,970 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:21,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:21,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:21,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-25 17:15:22,007 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:15:22,007 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:15:22,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:22,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:22,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:22,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:22,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-25 17:15:22,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:22,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:22,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:22,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:22,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:22,073 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:22,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:15:22,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:22,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-25 17:15:22,183 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:15:22,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-25 17:15:22,187 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:22,187 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:22,187 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:22,188 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:22,188 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:15:22,188 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:22,188 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:22,188 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:22,188 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration1_Loop [2022-11-25 17:15:22,188 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:22,188 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:22,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:22,194 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:22,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:22,201 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:22,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:22,291 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:22,296 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:15:22,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:22,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:22,307 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:22,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-25 17:15:22,320 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 [2022-11-25 17:15:22,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:22,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:22,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:22,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:22,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:22,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:22,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:22,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:22,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-25 17:15:22,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:22,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:22,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:22,377 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 [2022-11-25 17:15:22,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-25 17:15:22,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:22,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:22,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:22,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:22,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:22,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:22,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:22,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:22,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:22,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:22,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:22,430 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:22,436 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 [2022-11-25 17:15:22,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-25 17:15:22,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:22,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:22,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:22,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:22,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:22,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:22,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:22,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:22,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:22,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:22,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:22,477 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:22,489 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 [2022-11-25 17:15:22,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-25 17:15:22,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:22,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:22,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:22,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:22,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:22,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:22,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:22,531 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:15:22,537 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:15:22,537 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-25 17:15:22,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:22,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:22,583 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:22,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-25 17:15:22,589 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:15:22,589 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:15:22,589 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:15:22,590 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_#in~n) = 1*fibo_#in~n Supporting invariants [] [2022-11-25 17:15:22,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:22,608 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:15:22,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:22,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:15:22,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:22,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:15:22,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:22,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:22,826 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 [2022-11-25 17:15:22,828 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, 4 states have (on average 1.25) 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) [2022-11-25 17:15:22,961 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, 4 states have (on average 1.25) 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. [2022-11-25 17:15:22,964 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 [2022-11-25 17:15:22,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) 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) [2022-11-25 17:15:22,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-11-25 17:15:22,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 4 letters. [2022-11-25 17:15:22,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:22,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-25 17:15:22,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:22,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 8 letters. [2022-11-25 17:15:22,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:22,976 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2022-11-25 17:15:22,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:15:22,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 25 states and 34 transitions. [2022-11-25 17:15:22,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-11-25 17:15:22,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-25 17:15:23,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2022-11-25 17:15:23,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:15:23,002 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 34 transitions. [2022-11-25 17:15:23,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2022-11-25 17:15:23,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2022-11-25 17:15:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 17:15:23,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-11-25 17:15:23,060 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-25 17:15:23,061 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-25 17:15:23,061 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 17:15:23,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2022-11-25 17:15:23,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:15:23,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:15:23,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:15:23,067 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:15:23,068 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:15:23,068 INFO L748 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 128#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 131#fiboENTRY ~n := #in~n; 132#L8 assume !(~n < 1); 137#L10 assume !(1 == ~n); 126#L13 call #t~ret4 := fibo(~n - 1);< 127#fiboENTRY ~n := #in~n; 133#L8 assume ~n < 1;#res := 0; 134#fiboFINAL assume true; 135#fiboEXIT >#33#return; 124#L13-1 [2022-11-25 17:15:23,069 INFO L750 eck$LassoCheckResult]: Loop: 124#L13-1 call #t~ret5 := fibo(~n - 2);< 125#fiboENTRY ~n := #in~n; 140#L8 assume !(~n < 1); 139#L10 assume !(1 == ~n); 123#L13 call #t~ret4 := fibo(~n - 1);< 125#fiboENTRY ~n := #in~n; 140#L8 assume ~n < 1;#res := 0; 130#fiboFINAL assume true; 138#fiboEXIT >#33#return; 124#L13-1 [2022-11-25 17:15:23,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:23,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1181449843, now seen corresponding path program 1 times [2022-11-25 17:15:23,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:23,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366393032] [2022-11-25 17:15:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:23,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:23,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:23,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:15:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:15:23,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:15:23,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366393032] [2022-11-25 17:15:23,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366393032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:15:23,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:15:23,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:15:23,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64467343] [2022-11-25 17:15:23,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:15:23,282 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-25 17:15:23,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash 246097683, now seen corresponding path program 1 times [2022-11-25 17:15:23,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:23,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629460617] [2022-11-25 17:15:23,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:23,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:23,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:15:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:23,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:15:23,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:15:23,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629460617] [2022-11-25 17:15:23,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629460617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:15:23,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:15:23,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:15:23,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445147185] [2022-11-25 17:15:23,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:15:23,365 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:15:23,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:15:23,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:15:23,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:15:23,370 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:15:23,450 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-11-25 17:15:23,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2022-11-25 17:15:23,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:15:23,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 30 transitions. [2022-11-25 17:15:23,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-25 17:15:23,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-25 17:15:23,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2022-11-25 17:15:23,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:15:23,461 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-11-25 17:15:23,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2022-11-25 17:15:23,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-25 17:15:23,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 17:15:23,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2022-11-25 17:15:23,465 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-11-25 17:15:23,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:15:23,467 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-11-25 17:15:23,467 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 17:15:23,467 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions. [2022-11-25 17:15:23,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-25 17:15:23,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:15:23,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:15:23,469 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:15:23,469 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:15:23,469 INFO L748 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 195#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 200#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 204#fiboENTRY ~n := #in~n; 206#L8 assume !(~n < 1); 210#L10 assume !(1 == ~n); 199#L13 call #t~ret4 := fibo(~n - 1);< 201#fiboENTRY ~n := #in~n; 207#L8 assume !(~n < 1); 209#L10 assume 1 == ~n;#res := 1; 211#fiboFINAL assume true; 213#fiboEXIT >#33#return; 197#L13-1 [2022-11-25 17:15:23,469 INFO L750 eck$LassoCheckResult]: Loop: 197#L13-1 call #t~ret5 := fibo(~n - 2);< 198#fiboENTRY ~n := #in~n; 216#L8 assume !(~n < 1); 214#L10 assume !(1 == ~n); 196#L13 call #t~ret4 := fibo(~n - 1);< 198#fiboENTRY ~n := #in~n; 216#L8 assume !(~n < 1); 214#L10 assume 1 == ~n;#res := 1; 215#fiboFINAL assume true; 212#fiboEXIT >#33#return; 197#L13-1 [2022-11-25 17:15:23,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2029785426, now seen corresponding path program 1 times [2022-11-25 17:15:23,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:23,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915469610] [2022-11-25 17:15:23,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:23,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:23,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:15:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:23,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:23,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:15:23,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915469610] [2022-11-25 17:15:23,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915469610] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:15:23,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337029990] [2022-11-25 17:15:23,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:23,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:15:23,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:23,607 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:15:23,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:15:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:23,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:15:23,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:23,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:15:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:23,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337029990] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:15:23,902 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:15:23,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-25 17:15:23,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682898638] [2022-11-25 17:15:23,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:15:23,903 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-25 17:15:23,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:23,904 INFO L85 PathProgramCache]: Analyzing trace with hash -960881524, now seen corresponding path program 1 times [2022-11-25 17:15:23,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:23,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460590646] [2022-11-25 17:15:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:23,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:23,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:15:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:23,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:15:24,122 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:24,123 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:24,123 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:24,123 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:24,123 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:15:24,123 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:24,123 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:24,125 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:24,125 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration3_Loop [2022-11-25 17:15:24,125 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:24,125 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:24,126 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:24,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:24,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:24,144 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:24,196 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:24,196 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:15:24,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:24,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:24,199 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:24,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:24,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:24,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-25 17:15:24,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:15:24,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:15:24,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:24,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:24,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:24,242 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:24,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:24,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:24,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-25 17:15:24,279 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:15:24,279 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:15:24,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:24,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:24,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:24,291 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:24,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-25 17:15:24,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:24,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:24,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:24,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:24,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:24,328 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:24,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-25 17:15:24,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:15:24,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:24,997 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:15:25,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:25,002 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:25,002 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:25,002 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:25,002 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:25,002 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:15:25,002 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:25,002 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:25,002 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:25,003 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration3_Loop [2022-11-25 17:15:25,003 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:25,003 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:25,004 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:25,014 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:25,023 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:25,031 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:25,086 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:25,086 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:15:25,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:25,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:25,088 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:25,100 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 [2022-11-25 17:15:25,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-25 17:15:25,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:25,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:25,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:25,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:25,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:25,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:25,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:25,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:25,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:25,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:25,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:25,121 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:25,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-25 17:15:25,124 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 [2022-11-25 17:15:25,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:25,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:25,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:25,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:25,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:25,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:25,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:25,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:25,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-11-25 17:15:25,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:25,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:25,150 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:25,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-25 17:15:25,155 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 [2022-11-25 17:15:25,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:25,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:25,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:25,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:25,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:25,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:25,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:25,180 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:15:25,184 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:15:25,185 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-25 17:15:25,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:25,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:25,189 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:25,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-25 17:15:25,216 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:15:25,216 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:15:25,216 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:15:25,216 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2022-11-25 17:15:25,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:25,226 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:15:25,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:25,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:15:25,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:25,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:15:25,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:25,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:25,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:25,549 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2022-11-25 17:15:25,550 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8 Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:15:25,813 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 135 states and 183 transitions. Complement of second has 36 states. [2022-11-25 17:15:25,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-25 17:15:25,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:15:25,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 37 transitions. [2022-11-25 17:15:25,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 37 transitions. Stem has 12 letters. Loop has 10 letters. [2022-11-25 17:15:25,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:25,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 37 transitions. Stem has 22 letters. Loop has 10 letters. [2022-11-25 17:15:25,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:25,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 37 transitions. Stem has 12 letters. Loop has 20 letters. [2022-11-25 17:15:25,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:25,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 183 transitions. [2022-11-25 17:15:25,826 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-25 17:15:25,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 108 states and 152 transitions. [2022-11-25 17:15:25,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2022-11-25 17:15:25,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2022-11-25 17:15:25,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 152 transitions. [2022-11-25 17:15:25,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:15:25,832 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 152 transitions. [2022-11-25 17:15:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 152 transitions. [2022-11-25 17:15:25,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 94. [2022-11-25 17:15:25,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 64 states have internal predecessors, (71), 21 states have call successors, (22), 11 states have call predecessors, (22), 15 states have return successors, (33), 18 states have call predecessors, (33), 19 states have call successors, (33) [2022-11-25 17:15:25,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 126 transitions. [2022-11-25 17:15:25,846 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 126 transitions. [2022-11-25 17:15:25,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:15:25,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:15:25,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:15:25,847 INFO L87 Difference]: Start difference. First operand 94 states and 126 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:15:26,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:15:26,005 INFO L93 Difference]: Finished difference Result 123 states and 165 transitions. [2022-11-25 17:15:26,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 165 transitions. [2022-11-25 17:15:26,023 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-25 17:15:26,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 118 states and 160 transitions. [2022-11-25 17:15:26,031 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2022-11-25 17:15:26,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-25 17:15:26,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 160 transitions. [2022-11-25 17:15:26,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:15:26,034 INFO L218 hiAutomatonCegarLoop]: Abstraction has 118 states and 160 transitions. [2022-11-25 17:15:26,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 160 transitions. [2022-11-25 17:15:26,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2022-11-25 17:15:26,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.196969696969697) internal successors, (79), 72 states have internal predecessors, (79), 24 states have call successors, (25), 13 states have call predecessors, (25), 16 states have return successors, (37), 20 states have call predecessors, (37), 22 states have call successors, (37) [2022-11-25 17:15:26,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 141 transitions. [2022-11-25 17:15:26,066 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 141 transitions. [2022-11-25 17:15:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:15:26,067 INFO L428 stractBuchiCegarLoop]: Abstraction has 106 states and 141 transitions. [2022-11-25 17:15:26,069 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-25 17:15:26,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 141 transitions. [2022-11-25 17:15:26,071 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-25 17:15:26,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:15:26,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:15:26,076 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:15:26,077 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:15:26,077 INFO L748 eck$LassoCheckResult]: Stem: 787#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 788#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 802#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 804#fiboENTRY ~n := #in~n; 852#L8 assume !(~n < 1); 851#L10 assume !(1 == ~n); 801#L13 call #t~ret4 := fibo(~n - 1);< 803#fiboENTRY ~n := #in~n; 813#L8 assume !(~n < 1); 818#L10 assume !(1 == ~n); 824#L13 call #t~ret4 := fibo(~n - 1);< 845#fiboENTRY ~n := #in~n; 849#L8 assume !(~n < 1); 847#L10 assume !(1 == ~n); 841#L13 call #t~ret4 := fibo(~n - 1);< 845#fiboENTRY ~n := #in~n; 849#L8 assume !(~n < 1); 847#L10 assume !(1 == ~n); 841#L13 call #t~ret4 := fibo(~n - 1);< 845#fiboENTRY ~n := #in~n; 850#L8 assume !(~n < 1); 848#L10 assume 1 == ~n;#res := 1; 846#fiboFINAL assume true; 844#fiboEXIT >#33#return; 790#L13-1 call #t~ret5 := fibo(~n - 2);< 842#fiboENTRY ~n := #in~n; 890#L8 assume ~n < 1;#res := 0; 889#fiboFINAL assume true; 888#fiboEXIT >#35#return; 887#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 885#fiboFINAL assume true; 877#fiboEXIT >#33#return; 820#L13-1 [2022-11-25 17:15:26,077 INFO L750 eck$LassoCheckResult]: Loop: 820#L13-1 call #t~ret5 := fibo(~n - 2);< 800#fiboENTRY ~n := #in~n; 882#L8 assume !(~n < 1); 819#L10 assume !(1 == ~n); 822#L13 call #t~ret4 := fibo(~n - 1);< 800#fiboENTRY ~n := #in~n; 882#L8 assume !(~n < 1); 819#L10 assume 1 == ~n;#res := 1; 823#fiboFINAL assume true; 874#fiboEXIT >#33#return; 820#L13-1 [2022-11-25 17:15:26,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:26,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1730264506, now seen corresponding path program 1 times [2022-11-25 17:15:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:26,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749001717] [2022-11-25 17:15:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:26,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:26,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:15:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:26,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:15:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:26,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:15:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:15:26,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:15:26,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749001717] [2022-11-25 17:15:26,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749001717] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:15:26,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011275293] [2022-11-25 17:15:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:26,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:15:26,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:26,469 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:15:26,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 17:15:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:26,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:15:26,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:15:26,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:15:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:15:26,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011275293] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:15:26,950 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:15:26,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 18 [2022-11-25 17:15:26,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910306781] [2022-11-25 17:15:26,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:15:26,951 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-25 17:15:26,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:26,952 INFO L85 PathProgramCache]: Analyzing trace with hash -960881524, now seen corresponding path program 2 times [2022-11-25 17:15:26,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:26,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652423163] [2022-11-25 17:15:26,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:26,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:26,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:15:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:26,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:15:27,092 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:27,092 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:27,092 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:27,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:27,093 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:15:27,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:27,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:27,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:27,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration4_Loop [2022-11-25 17:15:27,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:27,094 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:27,096 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:27,099 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:27,107 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:27,109 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:27,157 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:27,157 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:15:27,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:27,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:27,159 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:27,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:27,168 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:27,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-25 17:15:27,192 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:15:27,192 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:15:27,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:27,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:27,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:27,203 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:27,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:27,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:27,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-25 17:15:27,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:27,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:27,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:27,249 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:27,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:15:27,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:27,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-25 17:15:28,025 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:15:28,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-25 17:15:28,029 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:28,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:28,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:28,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:28,030 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:15:28,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:28,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:28,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:28,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration4_Loop [2022-11-25 17:15:28,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:28,030 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:28,031 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:28,037 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:28,044 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:28,046 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:28,109 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:28,109 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:15:28,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:28,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:28,111 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:28,117 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 [2022-11-25 17:15:28,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-25 17:15:28,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:28,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:28,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:28,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:28,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:28,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:28,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:28,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:28,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:28,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:28,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:28,156 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:28,160 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 [2022-11-25 17:15:28,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-25 17:15:28,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:28,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:28,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:28,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:28,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:28,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:28,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:28,195 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:15:28,198 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 17:15:28,198 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:15:28,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:28,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:28,206 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:28,208 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:15:28,208 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:15:28,208 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:15:28,208 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2022-11-25 17:15:28,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-25 17:15:28,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:28,216 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:15:28,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:28,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 17:15:28,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:28,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:15:28,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:28,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:28,679 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2022-11-25 17:15:28,681 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 17:15:28,912 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 175 states and 233 transitions. Complement of second has 33 states. [2022-11-25 17:15:28,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-25 17:15:28,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 17:15:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 37 transitions. [2022-11-25 17:15:28,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 37 transitions. Stem has 32 letters. Loop has 10 letters. [2022-11-25 17:15:28,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:28,915 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 17:15:28,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:28,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 17:15:28,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:29,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:15:29,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:29,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:29,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:29,348 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 6 loop predicates [2022-11-25 17:15:29,349 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 17:15:29,531 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 300 states and 403 transitions. Complement of second has 25 states. [2022-11-25 17:15:29,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2022-11-25 17:15:29,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 17:15:29,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 24 transitions. [2022-11-25 17:15:29,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 24 transitions. Stem has 32 letters. Loop has 10 letters. [2022-11-25 17:15:29,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:29,533 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 17:15:29,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:29,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 17:15:29,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:29,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:15:29,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:29,938 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2022-11-25 17:15:29,938 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 17:15:30,208 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 858 states and 1136 transitions. Complement of second has 130 states. [2022-11-25 17:15:30,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-25 17:15:30,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 17:15:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2022-11-25 17:15:30,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 32 letters. Loop has 10 letters. [2022-11-25 17:15:30,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:30,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 42 letters. Loop has 10 letters. [2022-11-25 17:15:30,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:30,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 32 letters. Loop has 20 letters. [2022-11-25 17:15:30,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:30,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 858 states and 1136 transitions. [2022-11-25 17:15:30,228 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2022-11-25 17:15:30,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 858 states to 430 states and 620 transitions. [2022-11-25 17:15:30,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 163 [2022-11-25 17:15:30,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2022-11-25 17:15:30,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 430 states and 620 transitions. [2022-11-25 17:15:30,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:15:30,241 INFO L218 hiAutomatonCegarLoop]: Abstraction has 430 states and 620 transitions. [2022-11-25 17:15:30,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states and 620 transitions. [2022-11-25 17:15:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 352. [2022-11-25 17:15:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 221 states have (on average 1.1990950226244343) internal successors, (265), 235 states have internal predecessors, (265), 75 states have call successors, (84), 46 states have call predecessors, (84), 56 states have return successors, (136), 70 states have call predecessors, (136), 71 states have call successors, (136) [2022-11-25 17:15:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 485 transitions. [2022-11-25 17:15:30,275 INFO L240 hiAutomatonCegarLoop]: Abstraction has 352 states and 485 transitions. [2022-11-25 17:15:30,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:15:30,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 17:15:30,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:15:30,276 INFO L87 Difference]: Start difference. First operand 352 states and 485 transitions. Second operand has 19 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 13 states have internal predecessors, (35), 11 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-25 17:15:30,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:15:30,664 INFO L93 Difference]: Finished difference Result 559 states and 833 transitions. [2022-11-25 17:15:30,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 559 states and 833 transitions. [2022-11-25 17:15:30,673 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-25 17:15:30,683 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 559 states to 549 states and 817 transitions. [2022-11-25 17:15:30,683 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2022-11-25 17:15:30,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2022-11-25 17:15:30,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 549 states and 817 transitions. [2022-11-25 17:15:30,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:15:30,684 INFO L218 hiAutomatonCegarLoop]: Abstraction has 549 states and 817 transitions. [2022-11-25 17:15:30,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states and 817 transitions. [2022-11-25 17:15:30,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 517. [2022-11-25 17:15:30,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 316 states have (on average 1.1898734177215189) internal successors, (376), 334 states have internal predecessors, (376), 121 states have call successors, (135), 62 states have call predecessors, (135), 80 states have return successors, (264), 120 states have call predecessors, (264), 115 states have call successors, (264) [2022-11-25 17:15:30,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 775 transitions. [2022-11-25 17:15:30,713 INFO L240 hiAutomatonCegarLoop]: Abstraction has 517 states and 775 transitions. [2022-11-25 17:15:30,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:15:30,714 INFO L428 stractBuchiCegarLoop]: Abstraction has 517 states and 775 transitions. [2022-11-25 17:15:30,714 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-25 17:15:30,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 517 states and 775 transitions. [2022-11-25 17:15:30,719 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-25 17:15:30,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:15:30,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:15:30,720 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:15:30,720 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 17:15:30,720 INFO L748 eck$LassoCheckResult]: Stem: 4003#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 4004#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 4018#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 4019#fiboENTRY ~n := #in~n; 4085#L8 assume !(~n < 1); 4084#L10 assume !(1 == ~n); 4080#L13 call #t~ret4 := fibo(~n - 1);< 4083#fiboENTRY ~n := #in~n; 4082#L8 assume !(~n < 1); 4081#L10 assume !(1 == ~n); 4076#L13 call #t~ret4 := fibo(~n - 1);< 4079#fiboENTRY ~n := #in~n; 4078#L8 assume !(~n < 1); 4077#L10 assume !(1 == ~n); 4073#L13 call #t~ret4 := fibo(~n - 1);< 4075#fiboENTRY ~n := #in~n; 4074#L8 assume !(~n < 1); 4072#L10 assume !(1 == ~n); 4055#L13 call #t~ret4 := fibo(~n - 1);< 4069#fiboENTRY ~n := #in~n; 4070#L8 assume !(~n < 1); 4121#L10 assume !(1 == ~n); 4054#L13 call #t~ret4 := fibo(~n - 1);< 4069#fiboENTRY ~n := #in~n; 4071#L8 assume !(~n < 1); 4053#L10 assume 1 == ~n;#res := 1; 4056#fiboFINAL assume true; 4209#fiboEXIT >#33#return; 4206#L13-1 call #t~ret5 := fibo(~n - 2);< 4208#fiboENTRY ~n := #in~n; 4370#L8 assume !(~n < 1); 4351#L10 assume !(1 == ~n); 4353#L13 call #t~ret4 := fibo(~n - 1);< 4368#fiboENTRY ~n := #in~n; 4379#L8 assume !(~n < 1); 4371#L10 assume !(1 == ~n); 4372#L13 call #t~ret4 := fibo(~n - 1);< 4385#fiboENTRY [2022-11-25 17:15:30,720 INFO L750 eck$LassoCheckResult]: Loop: 4385#fiboENTRY ~n := #in~n; 4400#L8 assume !(~n < 1); 4399#L10 assume !(1 == ~n); 4381#L13 call #t~ret4 := fibo(~n - 1);< 4385#fiboENTRY [2022-11-25 17:15:30,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:30,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1831142574, now seen corresponding path program 1 times [2022-11-25 17:15:30,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:30,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633203296] [2022-11-25 17:15:30,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:30,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:15:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 46 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:15:30,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:15:30,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633203296] [2022-11-25 17:15:30,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633203296] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:15:30,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974943017] [2022-11-25 17:15:30,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:30,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:15:30,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:30,924 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:15:30,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-25 17:15:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:30,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 17:15:30,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 46 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:15:31,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:15:31,256 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 46 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:15:31,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974943017] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:15:31,257 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:15:31,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17 [2022-11-25 17:15:31,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073243909] [2022-11-25 17:15:31,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:15:31,260 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-25 17:15:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:31,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1450956, now seen corresponding path program 2 times [2022-11-25 17:15:31,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:31,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770027457] [2022-11-25 17:15:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:31,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:31,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:15:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:31,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:15:31,315 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:31,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:31,315 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:31,315 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:31,316 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:15:31,316 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,316 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:31,316 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:31,316 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration5_Loop [2022-11-25 17:15:31,316 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:31,316 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:31,318 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,321 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,323 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,325 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,333 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,372 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:31,374 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:15:31,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,375 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:31,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:31,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-25 17:15:31,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:15:31,411 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:15:31,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:31,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,423 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:31,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:31,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-25 17:15:31,467 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:15:31,467 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:15:31,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:31,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,474 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:31,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:31,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-25 17:15:31,504 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:15:31,505 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=0} Honda state: {fibo_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:15:31,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:31,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,511 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:31,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:31,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-25 17:15:31,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-11-25 17:15:31,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,540 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-25 17:15:31,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:15:31,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:31,585 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:15:31,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:31,596 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:31,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:31,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:31,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:31,596 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:15:31,596 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,596 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:31,597 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:31,597 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration5_Loop [2022-11-25 17:15:31,597 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:31,597 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:31,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,600 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,604 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,610 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:31,656 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:31,656 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:15:31,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,658 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,666 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 [2022-11-25 17:15:31,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-25 17:15:31,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:31,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:31,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:31,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:31,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:31,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:31,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:31,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:31,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:31,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,708 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,718 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 [2022-11-25 17:15:31,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-25 17:15:31,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:31,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:31,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:31,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:31,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:31,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:31,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:31,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:31,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:31,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,758 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,763 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 [2022-11-25 17:15:31,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-25 17:15:31,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:31,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:31,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:31,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:31,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:31,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:31,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:31,783 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:31,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-11-25 17:15:31,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,787 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-25 17:15:31,790 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 [2022-11-25 17:15:31,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:31,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:31,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:31,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:31,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:31,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:31,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:31,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:15:31,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:31,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,821 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,831 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 [2022-11-25 17:15:31,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-25 17:15:31,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:31,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:31,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:31,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:31,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:31,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:31,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:31,871 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:15:31,874 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 17:15:31,874 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:15:31,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:31,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,879 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,881 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:15:31,881 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:15:31,881 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:15:31,881 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_#in~n) = 1*fibo_#in~n Supporting invariants [] [2022-11-25 17:15:31,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-25 17:15:31,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:31,892 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:15:31,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:31,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 17:15:31,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:32,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:32,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:15:32,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:32,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:32,195 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-25 17:15:32,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:32,284 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 533 states and 791 transitions. Complement of second has 13 states. [2022-11-25 17:15:32,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-25 17:15:32,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:32,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-25 17:15:32,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 37 letters. Loop has 4 letters. [2022-11-25 17:15:32,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:32,290 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 17:15:32,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:32,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 17:15:32,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:32,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:15:32,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:32,560 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-25 17:15:32,561 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:32,643 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 533 states and 791 transitions. Complement of second has 13 states. [2022-11-25 17:15:32,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-25 17:15:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:32,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-25 17:15:32,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 37 letters. Loop has 4 letters. [2022-11-25 17:15:32,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:32,647 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 17:15:32,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:32,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 17:15:32,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:32,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:15:32,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:32,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:32,910 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-25 17:15:32,910 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:33,013 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 692 states and 973 transitions. Complement of second has 14 states. [2022-11-25 17:15:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-25 17:15:33,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:33,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-11-25 17:15:33,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 37 letters. Loop has 4 letters. [2022-11-25 17:15:33,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:33,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 41 letters. Loop has 4 letters. [2022-11-25 17:15:33,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:33,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 37 letters. Loop has 8 letters. [2022-11-25 17:15:33,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:33,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 692 states and 973 transitions. [2022-11-25 17:15:33,033 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-25 17:15:33,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 692 states to 579 states and 848 transitions. [2022-11-25 17:15:33,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 208 [2022-11-25 17:15:33,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 217 [2022-11-25 17:15:33,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 848 transitions. [2022-11-25 17:15:33,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:15:33,045 INFO L218 hiAutomatonCegarLoop]: Abstraction has 579 states and 848 transitions. [2022-11-25 17:15:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 848 transitions. [2022-11-25 17:15:33,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 549. [2022-11-25 17:15:33,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 343 states have (on average 1.1749271137026238) internal successors, (403), 366 states have internal predecessors, (403), 121 states have call successors, (135), 62 states have call predecessors, (135), 85 states have return successors, (274), 120 states have call predecessors, (274), 115 states have call successors, (274) [2022-11-25 17:15:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 812 transitions. [2022-11-25 17:15:33,080 INFO L240 hiAutomatonCegarLoop]: Abstraction has 549 states and 812 transitions. [2022-11-25 17:15:33,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:15:33,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 17:15:33,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:15:33,081 INFO L87 Difference]: Start difference. First operand 549 states and 812 transitions. Second operand has 17 states, 16 states have (on average 1.875) internal successors, (30), 12 states have internal predecessors, (30), 7 states have call successors, (8), 7 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:15:33,398 INFO L93 Difference]: Finished difference Result 659 states and 996 transitions. [2022-11-25 17:15:33,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 659 states and 996 transitions. [2022-11-25 17:15:33,407 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-25 17:15:33,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 659 states to 642 states and 974 transitions. [2022-11-25 17:15:33,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 244 [2022-11-25 17:15:33,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 244 [2022-11-25 17:15:33,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 642 states and 974 transitions. [2022-11-25 17:15:33,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:15:33,419 INFO L218 hiAutomatonCegarLoop]: Abstraction has 642 states and 974 transitions. [2022-11-25 17:15:33,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states and 974 transitions. [2022-11-25 17:15:33,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 588. [2022-11-25 17:15:33,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 366 states have (on average 1.169398907103825) internal successors, (428), 394 states have internal predecessors, (428), 134 states have call successors, (150), 69 states have call predecessors, (150), 88 states have return successors, (297), 124 states have call predecessors, (297), 127 states have call successors, (297) [2022-11-25 17:15:33,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 875 transitions. [2022-11-25 17:15:33,444 INFO L240 hiAutomatonCegarLoop]: Abstraction has 588 states and 875 transitions. [2022-11-25 17:15:33,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:15:33,445 INFO L428 stractBuchiCegarLoop]: Abstraction has 588 states and 875 transitions. [2022-11-25 17:15:33,445 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-25 17:15:33,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 588 states and 875 transitions. [2022-11-25 17:15:33,449 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-25 17:15:33,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:15:33,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:15:33,451 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 9, 8, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:15:33,451 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 17:15:33,451 INFO L748 eck$LassoCheckResult]: Stem: 8177#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 8178#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 8193#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 8194#fiboENTRY ~n := #in~n; 8284#L8 assume !(~n < 1); 8254#L10 assume !(1 == ~n); 8250#L13 call #t~ret4 := fibo(~n - 1);< 8267#fiboENTRY ~n := #in~n; 8256#L8 assume !(~n < 1); 8257#L10 assume !(1 == ~n); 8249#L13 call #t~ret4 := fibo(~n - 1);< 8251#fiboENTRY ~n := #in~n; 8269#L8 assume !(~n < 1); 8266#L10 assume !(1 == ~n); 8262#L13 call #t~ret4 := fibo(~n - 1);< 8265#fiboENTRY ~n := #in~n; 8318#L8 assume !(~n < 1); 8296#L10 assume !(1 == ~n); 8291#L13 call #t~ret4 := fibo(~n - 1);< 8294#fiboENTRY ~n := #in~n; 8375#L8 assume !(~n < 1); 8372#L10 assume !(1 == ~n); 8186#L13 call #t~ret4 := fibo(~n - 1);< 8363#fiboENTRY ~n := #in~n; 8377#L8 assume !(~n < 1); 8374#L10 assume !(1 == ~n); 8187#L13 call #t~ret4 := fibo(~n - 1);< 8363#fiboENTRY ~n := #in~n; 8378#L8 assume !(~n < 1); 8598#L10 assume 1 == ~n;#res := 1; 8596#fiboFINAL assume true; 8589#fiboEXIT >#33#return; 8209#L13-1 call #t~ret5 := fibo(~n - 2);< 8578#fiboENTRY ~n := #in~n; 8625#L8 assume !(~n < 1); 8623#L10 assume !(1 == ~n); 8239#L13 call #t~ret4 := fibo(~n - 1);< 8634#fiboENTRY ~n := #in~n; 8645#L8 assume !(~n < 1); 8238#L10 assume !(1 == ~n); 8229#L13 call #t~ret4 := fibo(~n - 1);< 8226#fiboENTRY ~n := #in~n; 8230#L8 assume !(~n < 1); 8686#L10 assume !(1 == ~n); 8228#L13 [2022-11-25 17:15:33,452 INFO L750 eck$LassoCheckResult]: Loop: 8228#L13 call #t~ret4 := fibo(~n - 1);< 8226#fiboENTRY ~n := #in~n; 8230#L8 assume !(~n < 1); 8686#L10 assume !(1 == ~n); 8228#L13 [2022-11-25 17:15:33,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:33,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1118344712, now seen corresponding path program 2 times [2022-11-25 17:15:33,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:33,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020402827] [2022-11-25 17:15:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:33,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:33,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:15:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 139 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 17:15:33,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:15:33,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020402827] [2022-11-25 17:15:33,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020402827] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:15:33,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051625013] [2022-11-25 17:15:33,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:15:33,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:15:33,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:33,695 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:15:33,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-11-25 17:15:33,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:15:33,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:15:33,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 17:15:33,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 139 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 17:15:33,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:15:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 139 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 17:15:33,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051625013] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:15:33,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:15:33,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 17 [2022-11-25 17:15:33,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372872490] [2022-11-25 17:15:33,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:15:33,993 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-25 17:15:33,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:33,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1893846, now seen corresponding path program 3 times [2022-11-25 17:15:33,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:33,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028862774] [2022-11-25 17:15:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:33,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:33,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:15:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:15:34,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:15:34,068 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:34,068 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:34,068 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:34,068 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:34,068 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:15:34,068 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:34,068 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:34,069 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:34,069 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration6_Loop [2022-11-25 17:15:34,069 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:34,069 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:34,070 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:34,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:34,082 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:34,085 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:34,146 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:34,146 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:15:34,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:34,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:34,148 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:34,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:15:34,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:34,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-25 17:15:34,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:34,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:34,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:34,188 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:34,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:15:34,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:15:34,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-25 17:15:35,047 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:15:35,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-11-25 17:15:35,051 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:15:35,051 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:15:35,051 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:15:35,051 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:15:35,051 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:15:35,051 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:35,051 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:15:35,051 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:15:35,051 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration6_Loop [2022-11-25 17:15:35,051 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:15:35,051 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:15:35,052 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:35,061 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:35,063 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:35,066 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:15:35,126 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:15:35,127 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:15:35,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:35,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:35,128 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:35,136 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 [2022-11-25 17:15:35,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:15:35,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:15:35,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:15:35,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:15:35,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:15:35,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:15:35,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:15:35,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-25 17:15:35,153 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:15:35,156 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:15:35,156 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-25 17:15:35,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:15:35,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:35,159 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:35,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-25 17:15:35,160 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:15:35,160 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:15:35,160 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:15:35,160 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2022-11-25 17:15:35,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-11-25 17:15:35,166 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:15:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:35,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 17:15:35,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:35,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:35,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:15:35,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:35,455 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-11-25 17:15:35,456 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 588 states and 875 transitions. cyclomatic complexity: 297 Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:35,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 588 states and 875 transitions. cyclomatic complexity: 297. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 606 states and 894 transitions. Complement of second has 18 states. [2022-11-25 17:15:35,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-25 17:15:35,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:35,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2022-11-25 17:15:35,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 44 letters. Loop has 4 letters. [2022-11-25 17:15:35,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:35,529 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 17:15:35,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:35,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 17:15:35,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:35,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:15:35,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:15:35,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:35,770 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2022-11-25 17:15:35,770 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 588 states and 875 transitions. cyclomatic complexity: 297 Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:35,874 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 588 states and 875 transitions. cyclomatic complexity: 297. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 836 states and 1216 transitions. Complement of second has 22 states. [2022-11-25 17:15:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2022-11-25 17:15:35,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:35,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2022-11-25 17:15:35,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 44 letters. Loop has 4 letters. [2022-11-25 17:15:35,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:35,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 48 letters. Loop has 4 letters. [2022-11-25 17:15:35,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:35,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 44 letters. Loop has 8 letters. [2022-11-25 17:15:35,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:15:35,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 836 states and 1216 transitions. [2022-11-25 17:15:35,887 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-25 17:15:35,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 836 states to 766 states and 1141 transitions. [2022-11-25 17:15:35,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 253 [2022-11-25 17:15:35,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2022-11-25 17:15:35,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 766 states and 1141 transitions. [2022-11-25 17:15:35,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:15:35,899 INFO L218 hiAutomatonCegarLoop]: Abstraction has 766 states and 1141 transitions. [2022-11-25 17:15:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states and 1141 transitions. [2022-11-25 17:15:35,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 753. [2022-11-25 17:15:35,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 476 states have (on average 1.1470588235294117) internal successors, (546), 512 states have internal predecessors, (546), 167 states have call successors, (201), 96 states have call predecessors, (201), 110 states have return successors, (377), 144 states have call predecessors, (377), 160 states have call successors, (377) [2022-11-25 17:15:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1124 transitions. [2022-11-25 17:15:35,924 INFO L240 hiAutomatonCegarLoop]: Abstraction has 753 states and 1124 transitions. [2022-11-25 17:15:35,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:15:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 17:15:35,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:15:35,925 INFO L87 Difference]: Start difference. First operand 753 states and 1124 transitions. Second operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 10 states have internal predecessors, (29), 8 states have call successors, (9), 9 states have call predecessors, (9), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:15:36,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:15:36,197 INFO L93 Difference]: Finished difference Result 321 states and 378 transitions. [2022-11-25 17:15:36,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 378 transitions. [2022-11-25 17:15:36,200 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 17:15:36,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 0 states and 0 transitions. [2022-11-25 17:15:36,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 17:15:36,200 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 17:15:36,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 17:15:36,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:15:36,201 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:15:36,201 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:15:36,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 17:15:36,202 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:15:36,202 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-25 17:15:36,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:15:36,202 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 17:15:36,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-25 17:15:36,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 05:15:36 BoogieIcfgContainer [2022-11-25 17:15:36,210 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 17:15:36,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:15:36,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:15:36,211 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:15:36,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:21" (3/4) ... [2022-11-25 17:15:36,215 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:15:36,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:15:36,216 INFO L158 Benchmark]: Toolchain (without parser) took 15667.69ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 106.7MB in the beginning and 60.4MB in the end (delta: 46.3MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2022-11-25 17:15:36,217 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:15:36,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.77ms. Allocated memory is still 144.7MB. Free memory was 106.1MB in the beginning and 114.4MB in the end (delta: -8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 17:15:36,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.65ms. Allocated memory is still 144.7MB. Free memory was 114.4MB in the beginning and 113.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:15:36,218 INFO L158 Benchmark]: Boogie Preprocessor took 16.53ms. Allocated memory is still 144.7MB. Free memory was 113.1MB in the beginning and 112.4MB in the end (delta: 623.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:15:36,218 INFO L158 Benchmark]: RCFGBuilder took 280.79ms. Allocated memory is still 144.7MB. Free memory was 111.8MB in the beginning and 102.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:15:36,218 INFO L158 Benchmark]: BuchiAutomizer took 15041.42ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 102.5MB in the beginning and 60.4MB in the end (delta: 42.1MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2022-11-25 17:15:36,219 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 174.1MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:15:36,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.77ms. Allocated memory is still 144.7MB. Free memory was 106.1MB in the beginning and 114.4MB in the end (delta: -8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.65ms. Allocated memory is still 144.7MB. Free memory was 114.4MB in the beginning and 113.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.53ms. Allocated memory is still 144.7MB. Free memory was 113.1MB in the beginning and 112.4MB in the end (delta: 623.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 280.79ms. Allocated memory is still 144.7MB. Free memory was 111.8MB in the beginning and 102.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 15041.42ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 102.5MB in the beginning and 60.4MB in the end (delta: 42.1MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 174.1MB. Free memory is still 60.4MB. 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 10 terminating modules (5 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. One deterministic module has affine ranking function n and consists of 9 locations. One deterministic module has affine ranking function n and consists of 7 locations. One nondeterministic module has affine ranking function n and consists of 9 locations. One nondeterministic module has affine ranking function \old(n) and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 19 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.9s and 7 iterations. TraceHistogramMax:10. Analysis of lassos took 8.4s. Construction of modules took 1.1s. Büchi inclusion checks took 5.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 238 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 516 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 491 mSDsluCounter, 511 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 312 mSDsCounter, 348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1202 IncrementalHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 348 mSolverCounterUnsat, 199 mSDtfsCounter, 1202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI1 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp92 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq185 hnf92 smp81 dnf100 smp100 tf110 neg96 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 52ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-25 17:15:36,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2022-11-25 17:15:36,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-25 17:15:36,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-11-25 17:15:36,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-25 17:15:37,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3164785-bfad-4f0d-b076-f19f8725b0bf/bin/uautomizer-ZsLfNo2U6R/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